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> <channel><title>Frequently Asked Questions About Linux / UNIX &#187; Troubleshooting</title> <atom:link href="http://www.cyberciti.biz/faq/category/troubleshooting/feed/" rel="self" type="application/rss+xml" /><link>http://www.cyberciti.biz/faq</link> <description>Every answer asks a more beautiful question.</description> <lastBuildDate>Fri, 03 Feb 2012 22:38:32 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.3.1</generator> <item><title>Mediawiki PHP Fatal error:  Cannot redeclare wfProfileIn() Error and Solution</title><link>http://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/</link> <comments>http://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/#comments</comments> <pubDate>Mon, 26 Dec 2011 19:02:20 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Apache]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[apache web server]]></category> <category><![CDATA[core problem]]></category> <category><![CDATA[fatal error]]></category> <category><![CDATA[mediawiki]]></category> <category><![CDATA[mv command]]></category> <category><![CDATA[php error]]></category> <category><![CDATA[rm command]]></category> <category><![CDATA[sysadmin]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[unix operating systems]]></category> <category><![CDATA[wiki]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11289</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span>'m running the Mediawiki software under Apache web server running on the Unix operating systems. I'm getting the following in my php error log:<blockquote> PHP Fatal error: <strong>Cannot redeclare wfProfileIn() </strong>(previously declared in /var/www/html/wiki/includes/profiler/Profiler.php:14) in /var/www/html/wiki/includes/ProfilerStub.php on line 25.</blockquote> How do I fix this problem under Mediawiki version 1.18.0?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>Linux: Neighbour Table Overflow Error and Solution</title><link>http://www.cyberciti.biz/faq/centos-redhat-debian-linux-neighbor-table-overflow/</link> <comments>http://www.cyberciti.biz/faq/centos-redhat-debian-linux-neighbor-table-overflow/#comments</comments> <pubDate>Mon, 19 Dec 2011 19:39:11 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[/etc/sysctl.conf]]></category> <category><![CDATA[/var/log/messages]]></category> <category><![CDATA[apple os x]]></category> <category><![CDATA[arp cache size]]></category> <category><![CDATA[arp table]]></category> <category><![CDATA[cache entry]]></category> <category><![CDATA[client computers]]></category> <category><![CDATA[desktops]]></category> <category><![CDATA[dns traffic]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[kernel variables]]></category> <category><![CDATA[ms windows]]></category> <category><![CDATA[neighbour table overflow]]></category> <category><![CDATA[net.ipv4.neigh.default.gc_interval]]></category> <category><![CDATA[net.ipv4.neigh.default.gc_stale_time]]></category> <category><![CDATA[net.ipv4.neigh.default.gc_thresh1]]></category> <category><![CDATA[net.ipv4.neigh.default.gc_thresh2]]></category> <category><![CDATA[net.ipv4.neigh.default.gc_thresh3]]></category> <category><![CDATA[overflow error]]></category> <category><![CDATA[sysctl command]]></category> <category><![CDATA[threshold]]></category> <category><![CDATA[windows linux]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11265</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span> setup a CentOS Linux based Linux server running as a gateway and firewall server. However, I'm getting the following messages in the <a
href="http://www.cyberciti.biz/faq/linux-log-files-location-and-how-do-i-view-logs-files/">/var/log/messages log file</a>:<blockquote><strong>Dec 20 00:41:01 fw01 kernel: Neighbour table overflow.
Dec 20 00:41:01 fw01 last message repeated 20 times</strong></blockquote> OR<blockquote><strong> Dec 20 00:41:01 fw03 kernel: [ 8987.821184] Neighbour table overflow.
Dec 20 00:41:01 fw03 kernel: [ 8987.860465] printk: 100 messages suppressed. </strong></blockquote> Why does kernel throw "Neighbour table overflow" messages in syslog? How do I fix this problem under Debian / CentOS / RHEL / Fedora / Ubuntu Linux?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/centos-redhat-debian-linux-neighbor-table-overflow/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>Lighttpd: network.c:483: error: &#8216;EC_KEY&#8217; undeclared (first use in this function) Error and Solution</title><link>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-lighttpd-networkerror-eckey-undeclared/</link> <comments>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-lighttpd-networkerror-eckey-undeclared/#comments</comments> <pubDate>Tue, 11 Oct 2011 19:50:31 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Lighttpd]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[amd64]]></category> <category><![CDATA[cenos]]></category> <category><![CDATA[curve cryptography]]></category> <category><![CDATA[enterprise linux]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[mobile wireless environments]]></category> <category><![CDATA[network c]]></category> <category><![CDATA[openssl]]></category> <category><![CDATA[patch cd]]></category> <category><![CDATA[patent issue]]></category> <category><![CDATA[public key cryptosystem]]></category> <category><![CDATA[red hat enterprise]]></category> <category><![CDATA[source code directory]]></category> <category><![CDATA[undeclared identifier]]></category> <category><![CDATA[web server]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11164</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span>'m trying to install the latest version of Lighttpd v1.4.29 web server under RHEL 6.1 AMD64 and getting the following error:<blockquote>network.c: In function ‘network_init’:
network.c:483: error: ‘EC_KEY’ undeclared (first use in this function)
network.c:483: error: (Each undeclared identifier is reported only once
network.c:483: error: for each function it appears in.)
network.c:483: error: ‘ecdh’ undeclared (first use in this function)
network.c:484: warning: unused variable ‘nid’
make[3]: *** [network.o] Error 1
make[3]: Leaving directory `/opt/new/lighttpd-1.4.29/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/opt/new/lighttpd-1.4.29/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/new/lighttpd-1.4.29'
make: *** [all] Error 2</blockquote> How do I fix this problem under CentOS 5.x, or RHEL, or Red Hat Enterprise Linux 6.x, or Fedora Linux?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-lighttpd-networkerror-eckey-undeclared/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>memcached: Failed To Set rlimit For Open Files Error and Solution</title><link>http://www.cyberciti.biz/faq/linux-unix-rhel-centos-memcache-failedto-setrlimit/</link> <comments>http://www.cyberciti.biz/faq/linux-unix-rhel-centos-memcache-failedto-setrlimit/#comments</comments> <pubDate>Tue, 11 Oct 2011 18:36:21 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[/etc/security/limits.conf]]></category> <category><![CDATA[/etc/sysconfig/memcached]]></category> <category><![CDATA[192 168 1 100]]></category> <category><![CDATA[CentOS 6]]></category> <category><![CDATA[file descriptor]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[max number]]></category> <category><![CDATA[memcached]]></category> <category><![CDATA[Restart memcached server]]></category> <category><![CDATA[rhel 5]]></category> <category><![CDATA[rhel 6]]></category> <category><![CDATA[Start memcached server]]></category> <category><![CDATA[Stop memcached server]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11153</guid> <description><![CDATA[<div
style="float: right; margin-top: 0px; margin-left: 5px;"><a
title="See all Troubleshooting related FAQ" href="http://www.cyberciti.biz/faq/category/troubleshooting/"><img
src="http://files.cyberciti.biz/cbzcache/3rdparty/configure.png" border="0" alt="" /></a></div> <span
class="drop_cap">I</span>'m using RHEL 6 / CentOS 6.x and install the <a
href="http://www.cyberciti.biz/faq/rhel-fedora-linux-install-memcached-caching-system-rpm/">memcached server</a>. However, whey I try to start the server using service  memcached start command, I get the following error:<blockquote>Starting memcached: failed to set rlimit for open files. Try running as root or requesting smaller maxconns value.      [FAILED]</blockquote> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-unix-rhel-centos-memcache-failedto-setrlimit/feed/</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>SSH: Agent Admitted Failure To Sign Using The Key Error And Solution</title><link>http://www.cyberciti.biz/faq/unix-appleosx-linux-bsd-agent-admitted-failuretosignusingkey/</link> <comments>http://www.cyberciti.biz/faq/unix-appleosx-linux-bsd-agent-admitted-failuretosignusingkey/#comments</comments> <pubDate>Sat, 17 Sep 2011 04:34:19 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Openbsd]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[authentication agent]]></category> <category><![CDATA[failure]]></category> <category><![CDATA[linux os]]></category> <category><![CDATA[os x]]></category> <category><![CDATA[ssh copy]]></category> <category><![CDATA[ssh key]]></category> <category><![CDATA[ssh-add command]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[unix linux]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11083</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span>'ve recently <a
href="http://www.cyberciti.biz/tips/ssh-public-key-based-authentication-how-to.html">regenrated and uploaded a new public ssh-key</a> using the <a
href="http://www.cyberciti.biz/faq/install-ssh-identity-key-remote-host/">ssh-copy-id command</a>. Now I'm getting the following error:<blockquote>ssh root@server3 <strong>Agent admitted failure to sign using the key.</strong> root@server3's password:</blockquote> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/unix-appleosx-linux-bsd-agent-admitted-failuretosignusingkey/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Linux: NFS4 mount Error reason given by server:  No such file or directory</title><link>http://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/</link> <comments>http://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/#comments</comments> <pubDate>Tue, 06 Sep 2011 23:41:49 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[File system]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[/etc/exports]]></category> <category><![CDATA[192]]></category> <category><![CDATA[command syntax]]></category> <category><![CDATA[error mount]]></category> <category><![CDATA[fsid]]></category> <category><![CDATA[hp]]></category> <category><![CDATA[linux server]]></category> <category><![CDATA[mount -t nfs4 command]]></category> <category><![CDATA[mount.nfs4 command]]></category> <category><![CDATA[server path]]></category> <category><![CDATA[server v4]]></category> <category><![CDATA[server2]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=11006</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span> recently installed <a
href="http://www.cyberciti.biz/faq/centos-fedora-rhel-nfs-v4-configuration/">NFS server v4 on my HP Linux server</a>. However, I'm not able to mount it from Linux nfs4 client using the following command:<blockquote>mount.nfs4 server2:/data /data</blockquote> I'm getting the following error:<blockquote>mount.nfs4: mounting server2:/data failed, reason given by server:
No such file or directory</blockquote> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>No xauth Program; Cannot Forward With Spoofing Error and Solution</title><link>http://www.cyberciti.biz/faq/linux-unix-appleosx-noxauth-program-cannot-forward-with-spoofing/</link> <comments>http://www.cyberciti.biz/faq/linux-unix-appleosx-noxauth-program-cannot-forward-with-spoofing/#comments</comments> <pubDate>Wed, 15 Jun 2011 19:11:41 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Openbsd]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[apt-get command]]></category> <category><![CDATA[blowfish]]></category> <category><![CDATA[enterprise linux]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[install xauth]]></category> <category><![CDATA[libraries]]></category> <category><![CDATA[red hat enterprise]]></category> <category><![CDATA[ssh]]></category> <category><![CDATA[ububtu]]></category> <category><![CDATA[X authentication utility]]></category> <category><![CDATA[X Server]]></category> <category><![CDATA[xauth command]]></category> <category><![CDATA[yum]]></category> <category><![CDATA[yum command]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=10704</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span> want to use my <a
href="http://www.cyberciti.biz/tips/linux-mac-osx-x11-forwarding-over-ssh-howto.html">local machine as the X server over ssh</a>. But when I try to run <em> ssh -X -v user@server1.example.com</em> to the remote machine, I get the following error: <strong><span
style='color: rgb(255, 0, 0);'>debug1: Remote: No xauth program; cannot forward with spoofing</span></strong> How do I fix this problem and <A
href="http://www.cyberciti.biz/tips/linux-mac-osx-x11-forwarding-over-ssh-howto.html">use X over ssh</a>?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-unix-appleosx-noxauth-program-cannot-forward-with-spoofing/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>read_urandom: /dev/urandom: open failed: No such file or directory</title><link>http://www.cyberciti.biz/faq/read_urandom-devurandom-open-failed-no-such-file-or-directory/</link> <comments>http://www.cyberciti.biz/faq/read_urandom-devurandom-open-failed-no-such-file-or-directory/#comments</comments> <pubDate>Thu, 15 Jul 2010 20:20:01 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[img]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[mkinitrd command]]></category> <category><![CDATA[reboot command]]></category> <category><![CDATA[rhn]]></category> <category><![CDATA[rpm]]></category> <category><![CDATA[rpm command]]></category> <category><![CDATA[yum]]></category> <category><![CDATA[yum command]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=10032</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">M</span>y CentOS Linux based server failed to boot with the following error:<blockquote><strong><span
style='color: rgb(255, 0, 0);'>read_urandom: /dev/urandom: open failed: No such file or directory</span></strong></blockquote> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/read_urandom-devurandom-open-failed-no-such-file-or-directory/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>restorecond: Will not restore a file with more than one hard link (/etc/resolv.conf) No such file or directory Error and Solution</title><link>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-restorecond-will-not-restoreafile/</link> <comments>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-restorecond-will-not-restoreafile/#comments</comments> <pubDate>Thu, 01 Jul 2010 20:39:57 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[/etc/resolv.conf]]></category> <category><![CDATA[/etc/sysconfig/networking/profiles/default/resolv.conf]]></category> <category><![CDATA[directory error]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[find / -xdev -samefile /etc/resolv.conf]]></category> <category><![CDATA[find command]]></category> <category><![CDATA[hard links]]></category> <category><![CDATA[ln command]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[profiles]]></category> <category><![CDATA[restorecon command]]></category> <category><![CDATA[selinux]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=7965</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span> see the following error in my SELinux enabled CentOS or RHEL server:<br
/> <br
/><blockquote>Jun 21 13:58:43 server3<strong><span
style='color: rgb(255, 0, 0);'> restorecond: Will not restore a file with more than one hard link (/etc/resolv.conf) No such file or directory</span></strong><br
/> Jun 21 16:14:51 server3 restorecond: Will not restore a file with more than one hard link (/etc/resolv.conf) No such file or directory <br
/> Jun 22 13:32:23 server3 restorecond: Will not restore a file with more than one hard link (/etc/resolv.conf) No such file or directory</blockquote> <br
/> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-rhel-fedora-centos-restorecond-will-not-restoreafile/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>Linux NFS Mount: wrong fs type, bad option, bad superblock on fs2:/data3 Error And Solution</title><link>http://www.cyberciti.biz/faq/missing-codepage-helper-program-other-error/</link> <comments>http://www.cyberciti.biz/faq/missing-codepage-helper-program-other-error/#comments</comments> <pubDate>Sat, 12 Jun 2010 19:59:08 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Linux]]></category> <category><![CDATA[nfs]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[accounting]]></category> <category><![CDATA[bad superblock]]></category> <category><![CDATA[client]]></category> <category><![CDATA[dmesg]]></category> <category><![CDATA[fs2]]></category> <category><![CDATA[Games]]></category> <category><![CDATA[Linux file sharing]]></category> <category><![CDATA[linux nfs]]></category> <category><![CDATA[Linux NFS mount command]]></category> <category><![CDATA[music]]></category> <category><![CDATA[netapp]]></category> <category><![CDATA[nfs mount]]></category> <category><![CDATA[showmount]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=7869</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div><br
/> <span
class="drop_cap">I</span>'ve netapp NFS server with /data3 as shared directory. I type the following command at Ubuntu Linux to mount the NFS server: <br
/><br
/><blockquote><strong> mount fs2:/data3 /nfs/</strong> OR<br
/> <strong>mount 192.168.1.100:/data3 /nfs/</strong> <br
/> But I'm getting an error which read as follows: <br
/> mount: wrong fs type, bad option, bad superblock on fs2:/data3,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try
dmesg &#124; tail  or so</blockquote> <br
/> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/missing-codepage-helper-program-other-error/feed/</wfw:commentRss> <slash:comments>3</slash:comments> </item> <item><title>crond: (*system*) BAD FILE MODE Error and Solution</title><link>http://www.cyberciti.biz/faq/unix-linux-cron-bad-file-mode-error/</link> <comments>http://www.cyberciti.biz/faq/unix-linux-cron-bad-file-mode-error/#comments</comments> <pubDate>Sun, 14 Mar 2010 15:15:58 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Linux]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[/etc/cron.d/ permissions]]></category> <category><![CDATA[/etc/cron.d/vnsta]]></category> <category><![CDATA[BAD FILE MODE]]></category> <category><![CDATA[chmod 0644]]></category> <category><![CDATA[chmod command]]></category> <category><![CDATA[cron]]></category> <category><![CDATA[cron permissions]]></category> <category><![CDATA[crond permissions]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[rhel]]></category> <category><![CDATA[vixie cron]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=6791</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span>'m getting this message in my /var/log/cron <br
/> <br
/><blockquote>Mar 12 09:20:01 server2 <strong>crond</strong>[1267]: (*system*) <strong>BAD FILE MODE</strong> (/etc/cron.d/vnstat)</blockquote> <br
/> How do I fix this problem under Fedora / CentO / RHEL or any Linux distro? <br
/>]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/unix-linux-cron-bad-file-mode-error/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>E: Archive directory /var/cache/apt/archives/partial is missing Error and Solution</title><link>http://www.cyberciti.biz/faq/debian-ubuntu-linux-earchive-directory-varcacheaptarchivespartial-ismissing/</link> <comments>http://www.cyberciti.biz/faq/debian-ubuntu-linux-earchive-directory-varcacheaptarchivespartial-ismissing/#comments</comments> <pubDate>Mon, 14 Dec 2009 13:29:12 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[MySQL]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[/var/cache/apt/archives/]]></category> <category><![CDATA[/var/cache/apt/archives/partial]]></category> <category><![CDATA[apt-get autoclean]]></category> <category><![CDATA[apt-get command]]></category> <category><![CDATA[archive directory]]></category> <category><![CDATA[deb files]]></category> <category><![CDATA[dependency tree]]></category> <category><![CDATA[disk space issues]]></category> <category><![CDATA[free disk space]]></category> <category><![CDATA[reading package]]></category> <category><![CDATA[repository]]></category> <category><![CDATA[rm command]]></category> <category><![CDATA[root user]]></category> <category><![CDATA[server package]]></category> <category><![CDATA[state information]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5983</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/debian-ubuntu/' title='See all Debian/Ubuntu Linux related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/debianlogo.gif' border='0' /></a></div> <span
class="drop_cap">I</span>'m trying to install mysql-server package under Debian using the following command:<br
/><br
/> <strong>apt-get install mysql-server-5.0  mysql-common</strong><br
/><br
/> But I'm getting an error which read as follows:<br
/><blockquote>Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libdevel-symdump-perl liburi-perl libhtml-parser-perl libapr1 libhtml-tree-perl libpq5 libhtml-tagset-perl libwww-perl
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
libdbd-mysql-perl libmysqlclient15off mysql-client-5.0
Suggested packages:
tinyca
The following NEW packages will be installed:
libdbd-mysql-perl libmysqlclient15off mysql-client-5.0 mysql-common mysql-server-5.0
0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded. <strong>E: Archive directory /var/cache/apt/archives/partial is missing.</strong></blockquote> <br
/><br
/> How do I fix the problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/debian-ubuntu-linux-earchive-directory-varcacheaptarchivespartial-ismissing/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Linux: Configuring RX POLLING (NAPI)</title><link>http://www.cyberciti.biz/faq/rhel-centos-fedora-debian-configure-rx-polling-mode/</link> <comments>http://www.cyberciti.biz/faq/rhel-centos-fedora-debian-configure-rx-polling-mode/#comments</comments> <pubDate>Fri, 27 Nov 2009 09:32:06 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[fedora linux]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[affinity]]></category> <category><![CDATA[broadcom]]></category> <category><![CDATA[configuration option]]></category> <category><![CDATA[cpus]]></category> <category><![CDATA[gigabit ethernet devices]]></category> <category><![CDATA[ifconfig eth0]]></category> <category><![CDATA[intel]]></category> <category><![CDATA[intel pro]]></category> <category><![CDATA[kernel driver]]></category> <category><![CDATA[kernel v2]]></category> <category><![CDATA[multiprocessor systems]]></category> <category><![CDATA[network interface cards]]></category> <category><![CDATA[network performance]]></category> <category><![CDATA[server network]]></category> <category><![CDATA[support linux]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5893</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/linux/' title='See all GNU/Linux related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/linux-logo.png' border='0' /></a></div> <span
class="drop_cap">M</span>y CentOS / RHEL based server is configured with Intel PRO/1000 network interface cards. NAPI (Rx polling mode) is supported in the e1000 driver.  I've multiple CPUs. How do I configure NAPI, decreasing interrupts and improve overall server network performance?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/rhel-centos-fedora-debian-configure-rx-polling-mode/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>PHP Fatal error:  Allowed Memory Size of 20971520 Bytes exhausted (tried to allocate 131072 bytes)  Error and Solution</title><link>http://www.cyberciti.biz/faq/linux-php-fatal-error-allowed-memory-size/</link> <comments>http://www.cyberciti.biz/faq/linux-php-fatal-error-allowed-memory-size/#comments</comments> <pubDate>Mon, 23 Nov 2009 12:31:29 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[PHP]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[/etc/php5/apache2/php.ini]]></category> <category><![CDATA[/etc/php5/cgi/php.ini]]></category> <category><![CDATA[/etc/php5/conf.d/suhosin.ini]]></category> <category><![CDATA[fatal error allowed memory size]]></category> <category><![CDATA[Freebsd restart apache]]></category> <category><![CDATA[mediawiki]]></category> <category><![CDATA[php5]]></category> <category><![CDATA[restart lighttpd]]></category> <category><![CDATA[security patch]]></category> <category><![CDATA[server apache]]></category> <category><![CDATA[sudo command]]></category> <category><![CDATA[suhosin]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5834</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/php/' title='See all PHP related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/php-logo.png' border='0' /></a></div> <span
class="drop_cap">I</span>'ve brand new Ubuntu Linux server (Apache + PHP5 FastCGI + Lighttpd image only server)  installed for my wordpress, mediawiki and vBullietin software. I can load forntpage but user cannot edit any wiki pages or post anything and I get the following error in log file:<br
/><br
/><blockquote><strong><span
style='color: rgb(255, 0, 0);'>PHP Fatal error:  Allowed Memory Size of 20971520 Bytes exhausted (tried to allocate 131072 bytes) in /usr/share/mediawiki/includes/OutputHandler.php on line 81</span></strong></blockquote><br
/><br
/> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-php-fatal-error-allowed-memory-size/feed/</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>Linux Configure Logwatch on the Central Log Server</title><link>http://www.cyberciti.biz/faq/linux-configure-central-log-server/</link> <comments>http://www.cyberciti.biz/faq/linux-configure-central-log-server/#comments</comments> <pubDate>Tue, 10 Nov 2009 03:00:37 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Monitoring]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[/etc/cron.daily/0logwatch]]></category> <category><![CDATA[/etc/logwatch/conf/logwatch.conf]]></category> <category><![CDATA[central log server]]></category> <category><![CDATA[HostLimit = no]]></category> <category><![CDATA[logwatch]]></category> <category><![CDATA[logwatch Central Log Server]]></category> <category><![CDATA[logwatch.pl]]></category> <category><![CDATA[MultiEmail = no]]></category> <category><![CDATA[SplitHosts = yes]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5745</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span>'m using Logwatch for reporting on unusual items in syslog. I've central <a
href="http://www.cyberciti.biz/tips/log-all-logs-to-central-linux-unix-loghost.html">logserver up and running</a>. All other Linux servers send logs to a remote loghost called log.example.com. How do I configure Logwatch on the central log server  so that it will send daily logs messages in a single e-mail?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-configure-central-log-server/feed/</wfw:commentRss> <slash:comments>3</slash:comments> </item> <item><title>Mac OS X Display Access Warnings Message For The Login Window</title><link>http://www.cyberciti.biz/faq/apple-macosx-enabling-login-access-warning-message/</link> <comments>http://www.cyberciti.biz/faq/apple-macosx-enabling-login-access-warning-message/#comments</comments> <pubDate>Tue, 10 Nov 2009 02:37:11 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[Mac os x]]></category> <category><![CDATA[Monitoring]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Security Through Obscurity]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/Library/Preferences/com.apple.loginwindow]]></category> <category><![CDATA[gnome desktop]]></category> <category><![CDATA[login window]]></category> <category><![CDATA[OS X /etc/motd]]></category> <category><![CDATA[OS X defaults command]]></category> <category><![CDATA[os x user]]></category> <category><![CDATA[sudo command]]></category> <category><![CDATA[unauthorized access]]></category> <category><![CDATA[unauthorized use]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5740</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/mac-os-x/' title='See all Apple Mac OS X related FAQs'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/osx-leopard.png' border='0' /></a></div> <span
class="drop_cap">I</span> know how to display notice of a computer's ownership, to warn against <a
href="http://www.cyberciti.biz/tips/howto-unix-linux-change-gnome-login-banner.html">unauthorized access, under Linux gnome</a> desktop. How do I display similar message under Apple Mac OS X to remind authorized users of their consent to monitoring?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/apple-macosx-enabling-login-access-warning-message/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>Linux Disable Mounting of Uncommon Filesystem</title><link>http://www.cyberciti.biz/faq/linux-disable-mounting-of-uncommon-filesystem/</link> <comments>http://www.cyberciti.biz/faq/linux-disable-mounting-of-uncommon-filesystem/#comments</comments> <pubDate>Mon, 09 Nov 2009 11:55:37 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[fedora linux]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[/etc/modprobe.conf]]></category> <category><![CDATA[/etc/modprobe.d/blacklist]]></category> <category><![CDATA[fedora]]></category> <category><![CDATA[filesystem]]></category> <category><![CDATA[kernel driver]]></category> <category><![CDATA[scripts]]></category> <category><![CDATA[syntax]]></category> <category><![CDATA[system drivers]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5713</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/centos/' title='See all Sun CentOS Linux related FAQs'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/centos_logo.png' border='0' /></a></div> <span
class="drop_cap">H</span>ow do I disable mounting of uncommon file systems such as hfs, udf, cramfs etc under Fedora or CentOS / RHEL / Redhat Enterprise Linux?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-disable-mounting-of-uncommon-filesystem/feed/</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>Rsnapshot WARNING: Could not lchown() symlink &quot;/path/to/file&quot; Error and Solution</title><link>http://www.cyberciti.biz/faq/warning-could-not-lchown/</link> <comments>http://www.cyberciti.biz/faq/warning-could-not-lchown/#comments</comments> <pubDate>Tue, 03 Nov 2009 16:17:05 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[backup]]></category> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Mac os x]]></category> <category><![CDATA[Package management]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[backup server]]></category> <category><![CDATA[cron job]]></category> <category><![CDATA[Debian install Lchown]]></category> <category><![CDATA[Install Lchown]]></category> <category><![CDATA[Lchown]]></category> <category><![CDATA[Linux install Lchown]]></category> <category><![CDATA[perl interface]]></category> <category><![CDATA[reading package]]></category> <category><![CDATA[rsnapshot command]]></category> <category><![CDATA[system call]]></category> <category><![CDATA[unix system]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5613</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/troubleshooting/' title='See all Troubleshooting related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/configure.png' border='0' /></a></div> <span
class="drop_cap">I</span> got <a
href="http://www.cyberciti.biz/faq/linux-rsnapshot-backup-howto/">rsnapshot based backup server</a> up and running for my network under Debian Linux 5.x. But, whenever I run a backup job using the following command:<br
/> <em>rsnapshot -v -c /root/rsnapshot.server1.conf hourly</em><br
/> I get the following messages on screen:<br
/><blockquote>WARNING: Could not lchown() symlink "/nas/.rsnapshot/hourly.1/server1.example.com/etc/alternatives/locate" <strong>WARNING: Could not lchown() symlink "/nas/.rsnapshot/hourly.1/server1.example.com/etc/alternatives/nc.1.gz"</strong> WARNING: Could not lchown() symlink "/nas/.rsnapshot/hourly.1/server1.example.com/etc/alternatives/jexec-binfmt"
WARNING: Could not lchown() symlink "/nas/.rsnapshot/hourly.1/server1.example.com/etc/alternatives/servertool"</blockquote><br
/> How do I fix this problem?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/warning-could-not-lchown/feed/</wfw:commentRss> <slash:comments>3</slash:comments> </item> <item><title>Linux Increasing The Transmit Queue Length (txqueuelen)</title><link>http://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txqueuelen/</link> <comments>http://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txqueuelen/#comments</comments> <pubDate>Thu, 22 Oct 2009 09:16:12 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[BASH Shell]]></category> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[Wireless Networking]]></category> <category><![CDATA[/etc/rc.local]]></category> <category><![CDATA[centos  txqueuelen]]></category> <category><![CDATA[data transfers]]></category> <category><![CDATA[debian  txqueuelen]]></category> <category><![CDATA[gentoo  txqueuelen]]></category> <category><![CDATA[high speed internet]]></category> <category><![CDATA[high speed internet connections]]></category> <category><![CDATA[high speed network]]></category> <category><![CDATA[ifconfig eth0]]></category> <category><![CDATA[ifconfig txqueuelen]]></category> <category><![CDATA[interactive traffic]]></category> <category><![CDATA[interface]]></category> <category><![CDATA[isdn]]></category> <category><![CDATA[latency]]></category> <category><![CDATA[Linux ifconfig txqueuelen]]></category> <category><![CDATA[modem]]></category> <category><![CDATA[redhat txqueuelen]]></category> <category><![CDATA[speed internet connections]]></category> <category><![CDATA[txqueuelen]]></category> <category><![CDATA[ubuntu  txqueuelen]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5476</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/linux/' title='See all GNU/Linux related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/linux-logo.png' border='0' /></a></div> <span
class="drop_cap">H</span>ow do I set txqueuelen (the  length  of  the  transmit queue)  length of the network card device under Linux? How do I set it for a high latency and/or a high speed network for bulk transfer from disturbing interactive traffic like ssh too much?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txqueuelen/feed/</wfw:commentRss> <slash:comments>8</slash:comments> </item> <item><title>Linux Tuning The VM (memory) Subsystem</title><link>http://www.cyberciti.biz/faq/linux-kernel-tuning-virtual-memory-subsystem/</link> <comments>http://www.cyberciti.biz/faq/linux-kernel-tuning-virtual-memory-subsystem/#comments</comments> <pubDate>Fri, 16 Oct 2009 09:29:09 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[BASH Shell]]></category> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[Virtualization]]></category> <category><![CDATA[/etc/sysctl.conf]]></category> <category><![CDATA[caches]]></category> <category><![CDATA[disk subsystem]]></category> <category><![CDATA[high performance]]></category> <category><![CDATA[linux kernel]]></category> <category><![CDATA[linux operating systems]]></category> <category><![CDATA[Linux swap tunning]]></category> <category><![CDATA[Linux swappiness]]></category> <category><![CDATA[memory subsystem]]></category> <category><![CDATA[performance linux]]></category> <category><![CDATA[raid 10]]></category> <category><![CDATA[raid controller]]></category> <category><![CDATA[scsi disks]]></category> <category><![CDATA[slab]]></category> <category><![CDATA[system cache]]></category> <category><![CDATA[virtual memory manager]]></category> <category><![CDATA[vm.dirty_background_ratio]]></category> <category><![CDATA[vm.dirty_ratio]]></category> <category><![CDATA[vm.swappiness]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=5366</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/faq/category/linux/' title='See all GNU/Linux related FAQ'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/linux-logo.png' border='0' /></a></div> <span
class="drop_cap">I</span>'ve fast RAID-10 disk subsystem with multiple SCSI disks. Apps running under modern Linux kernel don't write directly to the disk. They write it to the file system cache which is managed by Linux kernel virtual memory manager. Since I've high performance RAID controller I need to decrease the number of flushes. How do I tune virtual memory subsystem under Linux operating systems for better performance?]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/linux-kernel-tuning-virtual-memory-subsystem/feed/</wfw:commentRss> <slash:comments>5</slash:comments> </item> </channel> </rss>
