http://www.cyberciti.biz/tips This is a Linux sys admin journal by Vivek about sys admin work, Linux tips & tricks, hacks, news and more. Fri, 03 Feb 2012 22:45:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.cyberciti.biz/tips/centos-linux-6-download-cd-dvd-iso.html http://www.cyberciti.biz/tips/centos-linux-6-download-cd-dvd-iso.html#comments Mon, 11 Jul 2011 13:43:38 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=7932 CentOS Linux version 6 has been released. It is a community-supported operating system based on Red Hat Enterprise Linux (RHEL) version 6. CentOS Linux is considered as the most popular Linux distribution for web servers with almost 30% of all Linux servers using it.

]]> http://www.cyberciti.biz/tips/centos-linux-6-download-cd-dvd-iso.html/feed 10 http://www.cyberciti.biz/tips/vmware-linux-lost-eth0-after-cloning-image.html http://www.cyberciti.biz/tips/vmware-linux-lost-eth0-after-cloning-image.html#comments Mon, 11 Jul 2011 11:36:38 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=7924 After cloning a VMWare image I had noticed that my CentOS Linux server renamed eth0 as eth1, eth1 as eth2 and so on. This is due to wrong or duplicate mac address. To fix this problem login to your CentOS Linux server using console and type the following commands:]]> http://www.cyberciti.biz/tips/vmware-linux-lost-eth0-after-cloning-image.html/feed 3 http://www.cyberciti.biz/tips/rhel-centos-perl-bug-fix-update.html http://www.cyberciti.biz/tips/rhel-centos-perl-bug-fix-update.html#comments Sun, 21 Sep 2008 11:22:18 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2939 Perl version supplied with RHEL has bug, which will result code running at least 100 times slower than expected speed. Now, Red Hat updated perl packages that fix a performance issue. Earlier only solution was installing your own perl under /usr/local or other location. This fix will now take care of performance penalty.]]> http://www.cyberciti.biz/tips/rhel-centos-perl-bug-fix-update.html/feed 2 http://www.cyberciti.biz/tips/postfix-mail-server-security-update-moderate-security-impact.html http://www.cyberciti.biz/tips/postfix-mail-server-security-update-moderate-security-impact.html#comments Mon, 18 Aug 2008 22:10:28 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2703 Postfix MTA updated to fix security vulnerabilities such as incorrectly checks the ownership of a mailbox. In some configurations, this allows for appending data to arbitrary files as root. This update has been rated as having moderate security impact.]]> http://www.cyberciti.biz/tips/postfix-mail-server-security-update-moderate-security-impact.html/feed 0 http://www.cyberciti.biz/tips/linux-update-dnsmasq-dnscache-software.html http://www.cyberciti.biz/tips/linux-update-dnsmasq-dnscache-software.html#comments Tue, 12 Aug 2008 06:55:27 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2650 Red Hat has shipped a new version of its dnsmasq caching software to plug source UDP port bug. This could have made DNS spoofing attacks (CVE-2008-1447) easier. Dnsmasq is lightweight ultra fast dns cache server forwarder and DHCP server. It is designed to provide DNS and, optionally, DHCP, to a small network. ]]> http://www.cyberciti.biz/tips/linux-update-dnsmasq-dnscache-software.html/feed 0 http://www.cyberciti.biz/tips/upgrading-centos-51-to-52.html http://www.cyberciti.biz/tips/upgrading-centos-51-to-52.html#comments Wed, 25 Jun 2008 01:53:22 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2408 http://www.cyberciti.biz/tips/upgrading-centos-51-to-52.html/feed 17 http://www.cyberciti.biz/tips/howto-centos-rhel4-iscsi-initiators.html http://www.cyberciti.biz/tips/howto-centos-rhel4-iscsi-initiators.html#comments Tue, 13 May 2008 12:24:59 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2285 http://www.cyberciti.biz/tips/howto-centos-rhel4-iscsi-initiators.html/feed 3 http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html#comments Sat, 01 Dec 2007 10:26:01 +0000 Vivek Gite http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html/feed 8 http://www.cyberciti.biz/tips/lighttpd-apache-run-xcache-in-chrooted-jail.html http://www.cyberciti.biz/tips/lighttpd-apache-run-xcache-in-chrooted-jail.html#comments Mon, 26 Nov 2007 06:41:56 +0000 Vivek Gite http://www.cyberciti.biz/tips/lighttpd-apache-run-xcache-in-chrooted-jail.html http://www.cyberciti.biz/tips/lighttpd-apache-run-xcache-in-chrooted-jail.html/feed 0 http://www.cyberciti.biz/tips/centos-rhel-lighttpd-chroot-jail-installation-howto.html http://www.cyberciti.biz/tips/centos-rhel-lighttpd-chroot-jail-installation-howto.html#comments Fri, 02 Nov 2007 10:40:53 +0000 Vivek Gite http://www.cyberciti.biz/tips/centos-rhel-lighttpd-chroot-jail-installation-howto.html Many people asked me to write about setting up Lighttpd under CentOS or RHEL 5 Linux using chroot() call. The instructions are almost same but you need to make little modification as compare to Debian / Ubuntu Linux instructions.]]> http://www.cyberciti.biz/tips/centos-rhel-lighttpd-chroot-jail-installation-howto.html/feed 10 http://www.cyberciti.biz/tips/rhel-centos-xen-virtualization-installation-howto.html http://www.cyberciti.biz/tips/rhel-centos-xen-virtualization-installation-howto.html#comments Thu, 18 Oct 2007 19:57:34 +0000 Vivek Gite http://www.cyberciti.biz/tips/rhel-centos-xen-virtualization-installation-howto.html http://www.cyberciti.biz/tips/rhel-centos-xen-virtualization-installation-howto.html/feed 22 http://www.cyberciti.biz/tips/rhel-centos-upgrade-vmware-server.html http://www.cyberciti.biz/tips/rhel-centos-upgrade-vmware-server.html#comments Tue, 25 Sep 2007 13:18:18 +0000 Vivek Gite http://www.cyberciti.biz/tips/rhel-centos-upgrade-vmware-server.html http://www.cyberciti.biz/tips/rhel-centos-upgrade-vmware-server.html/feed 6 http://www.cyberciti.biz/tips/linux-unix-modify-dns-multiple-cpu-support.html http://www.cyberciti.biz/tips/linux-unix-modify-dns-multiple-cpu-support.html#comments Fri, 07 Sep 2007 06:40:05 +0000 Vivek Gite http://www.cyberciti.biz/tips/linux-unix-modify-dns-multiple-cpu-support.html http://www.cyberciti.biz/tips/linux-unix-modify-dns-multiple-cpu-support.html/feed 0 http://www.cyberciti.biz/tips/howto-install-oracle-on-centos-linux.html http://www.cyberciti.biz/tips/howto-install-oracle-on-centos-linux.html#comments Tue, 01 May 2007 21:22:59 +0000 Vivek Gite http://www.cyberciti.biz/tips/howto-install-oracle-on-centos-linux.html http://www.cyberciti.biz/tips/howto-install-oracle-on-centos-linux.html/feed 0 http://www.cyberciti.biz/tips/linux-iptables-how-to-flush-all-rules.html http://www.cyberciti.biz/tips/linux-iptables-how-to-flush-all-rules.html#comments Mon, 20 Jun 2005 22:46:00 +0000 LinuxTitli http://www.cyberciti.biz/tips/linux-iptables-3-%e2%80%93-how-to-flush-all-rules.html http://www.cyberciti.biz/tips/linux-iptables-how-to-flush-all-rules.html/feed 6