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> <channel><title>nixCraft &#187; User Management</title> <atom:link href="http://www.cyberciti.biz/tips/category/user-management/feed" rel="self" type="application/rss+xml" /><link>http://www.cyberciti.biz/tips</link> <description>This is a Linux sys admin journal by Vivek about sys admin work, Linux tips &#38; tricks, hacks, news and more.</description> <lastBuildDate>Wed, 24 Apr 2013 18:50:55 +0000</lastBuildDate> <language>en-US</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.5.1</generator> <item><title>Red Hat / CentOS VSFTPD FTP Server Configuration</title><link>http://www.cyberciti.biz/tips/rhel-fedora-centos-vsftpd-installation.html</link> <comments>http://www.cyberciti.biz/tips/rhel-fedora-centos-vsftpd-installation.html#comments</comments> <pubDate>Thu, 21 May 2009 18:06:12 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[FTP Server]]></category> <category><![CDATA[Howto]]></category> <category><![CDATA[Iptables]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat/Fedora Linux]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/etc/sysconfig/iptables]]></category> <category><![CDATA[/etc/vsftpd/ftpusers]]></category> <category><![CDATA[/etc/vsftpd/vsftpd.conf]]></category> <category><![CDATA[chkconfig command]]></category> <category><![CDATA[chroot_local_user=YES]]></category> <category><![CDATA[ftp port 21]]></category> <category><![CDATA[install vsftpd]]></category> <category><![CDATA[open port 21]]></category> <category><![CDATA[var/log/vsftpd.log]]></category> <category><![CDATA[vsftpd firewall]]></category> <category><![CDATA[vsftpd iptables configuration]]></category> <category><![CDATA[vsftpd pf configuration]]></category> <category><![CDATA[yum command]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/?p=4788</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/tips/category/redhatfedora-linux' title='See all Redhat/CentOS/Fedora Core related tips/articles'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/rhlogo.gif' border='0' /></a></div> vsftpd (Very Secure FTP Daemon) is an FTP server for UNIX-like systems, including CentOS / RHEL / Fedora and other Linux distributions. It supports IPv6, SSL, locking users to their home directories and many other advanced features. <br
/><br
/> In this guide you will learn:<ol><li>Setup vsftpd to Provide FTP Service.</li><li>Configure vsftpd.</li><li>Configure Firewalls to Protect the FTP Server.</li><li>Configure vsftpd with SSL/TLS.</li><li>Setup vsftpd as Download Only Anonymous Internet Server.</li><li>Setup vsftpd With Virtual Users and Much More.</li></ol> <br/><br/><strong>Read CentOS / RHEL FTP Server Series:</strong><ul><li><a
href="http://www.cyberciti.biz/tips/red-hat-centos-vsftpd-ftp-server-configuration.html">Red Hat / CentOS VSFTPD FTP Server Configuration</a></li><li><a
href="http://www.cyberciti.biz/tips/configure-vsfptd-secure-connections-via-ssl-tls.html">VSFTPD SSL / TLS Configuration</a></li><li><a
href="http://www.cyberciti.biz/tips/rhel-centos-vsftpd-anonymous-internet-server.html">VSFTPD Set Download Only Anonymous Internet Server</a></li><li><a
href="http://www.cyberciti.biz/tips/centos-redhat-vsftpd-ftp-with-virtual-users.html">CentOS / RedHat: VSFTPD FTP With Virtual Users</a></li></ul>]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/rhel-fedora-centos-vsftpd-installation.html/feed</wfw:commentRss> <slash:comments>42</slash:comments> </item> <item><title>Lighttpd Protect Different Directories With Different Password Files</title><link>http://www.cyberciti.biz/tips/password-protect-different-directories-with-user-password.html</link> <comments>http://www.cyberciti.biz/tips/password-protect-different-directories-with-user-password.html#comments</comments> <pubDate>Mon, 18 Aug 2008 19:31:46 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian Linux]]></category> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[lighttpd]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Sys admin]]></category> <category><![CDATA[Tips]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/etc/lighttpd/lighttpd.conf]]></category> <category><![CDATA[lighthttpd password]]></category> <category><![CDATA[lighttpd auth]]></category> <category><![CDATA[lighttpd auth.require]]></category> <category><![CDATA[lighttpd authentication]]></category> <category><![CDATA[lighttpd basic auth]]></category> <category><![CDATA[lighttpd mod_auth]]></category> <category><![CDATA[lighttpd password]]></category> <category><![CDATA[lighttpd password protection]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/?p=2688</guid> <description><![CDATA[<div
style='float:right;margin-top:0px;margin-left:5px;'><a
href='http://www.cyberciti.biz/tips/category/lighttpd' title='See all Lighttpd related tips/articles'><img
src='http://files.cyberciti.biz/cbzcache/3rdparty/light_logo.png' border='0' /></a></div> There is a way to protect different directories with different username/password under Lighttpd server using  conditionals directives.]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/password-protect-different-directories-with-user-password.html/feed</wfw:commentRss> <slash:comments>3</slash:comments> </item> <item><title>How To Secure User Accounts Under IBM AIX Systems</title><link>http://www.cyberciti.biz/tips/aix-security-commands.html</link> <comments>http://www.cyberciti.biz/tips/aix-security-commands.html#comments</comments> <pubDate>Tue, 22 Jul 2008 20:01:40 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[Howto]]></category> <category><![CDATA[Links]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Sys admin]]></category> <category><![CDATA[Tips]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[aix 5.3]]></category> <category><![CDATA[aix operating system]]></category> <category><![CDATA[aix pseries]]></category> <category><![CDATA[aix rs6000]]></category> <category><![CDATA[aix servers]]></category> <category><![CDATA[aix systems]]></category> <category><![CDATA[array]]></category> <category><![CDATA[group management]]></category> <category><![CDATA[ibm aix]]></category> <category><![CDATA[power5 aix]]></category> <category><![CDATA[quick reference guide]]></category> <category><![CDATA[ready reference]]></category> <category><![CDATA[unix aix]]></category> <category><![CDATA[user accounts]]></category> <category><![CDATA[user security]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/?p=2480</guid> <description><![CDATA[Security is an important aspect of the IBM AIX operating system. Follow along with this quick reference guide on AIX user security commands to learn more. ]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/aix-security-commands.html/feed</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>rssh: Per User Configuration Options For Chroot Jail</title><link>http://www.cyberciti.biz/tips/linux-unix-configuration-for-rssh.html</link> <comments>http://www.cyberciti.biz/tips/linux-unix-configuration-for-rssh.html#comments</comments> <pubDate>Sat, 22 Dec 2007 00:00:00 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[Debian Linux]]></category> <category><![CDATA[File system]]></category> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[Howto]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[RedHat/Fedora Linux]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Suse Linux]]></category> <category><![CDATA[Sys admin]]></category> <category><![CDATA[Tuning]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/etc/rssh.conf]]></category> <category><![CDATA[/etc/sysconfig/syslog]]></category> <category><![CDATA[chroot conf]]></category> <category><![CDATA[chroot howto]]></category> <category><![CDATA[chroot jail]]></category> <category><![CDATA[chroot mknode]]></category> <category><![CDATA[chroot shell]]></category> <category><![CDATA[chroot users]]></category> <category><![CDATA[debian chroot]]></category> <category><![CDATA[fedora chroot]]></category> <category><![CDATA[redhat chroot]]></category> <category><![CDATA[rssh chroot]]></category> <category><![CDATA[rssh connection closed]]></category> <category><![CDATA[scponly chroot]]></category> <category><![CDATA[sftp]]></category> <category><![CDATA[sftp chroot]]></category> <category><![CDATA[sshd chroot]]></category> <category><![CDATA[syslogd]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/linux-unix-configuration-for-rssh.html</guid> <description><![CDATA[rssh is a restricted shell for providing limited access to a host via ssh. It also allows system wide configuration and per user configuration. From the man page: The user configuration directive allows for the configuration of options on a per-user basis. THIS KEYWORD OVERRIDES ALL OTHER KEYWORDS FOR THE SPECIFIED USER. That is, if [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/linux-unix-configuration-for-rssh.html/feed</wfw:commentRss> <slash:comments>6</slash:comments> </item> <item><title>Ubuntu Linux Restore admin / root level permissions</title><link>http://www.cyberciti.biz/tips/ubuntu-admin-group-permissions.html</link> <comments>http://www.cyberciti.biz/tips/ubuntu-admin-group-permissions.html#comments</comments> <pubDate>Thu, 01 Nov 2007 12:03:02 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[Tips]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[critical files]]></category> <category><![CDATA[group admin]]></category> <category><![CDATA[group membership]]></category> <category><![CDATA[groups command]]></category> <category><![CDATA[grub]]></category> <category><![CDATA[id command]]></category> <category><![CDATA[recovery mode booting]]></category> <category><![CDATA[root user]]></category> <category><![CDATA[special group]]></category> <category><![CDATA[unlimited power]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/ubuntu-admin-group-permissions.html</guid> <description><![CDATA[I was writing and testing few python scripts (yes I'm moving lot of stuff from shell / perl to python these days) and accidentally I renamed my own user account from vivek to test. However, I did not noticed change until I rebooted my box. Now I cannot run sudo (or become a root user) [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/ubuntu-admin-group-permissions.html/feed</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>Linux set default password expiry for all new users</title><link>http://www.cyberciti.biz/tips/linux-set-default-password-expiry-for-all-new-users.html</link> <comments>http://www.cyberciti.biz/tips/linux-set-default-password-expiry-for-all-new-users.html#comments</comments> <pubDate>Sun, 30 Apr 2006 18:18:00 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian Linux]]></category> <category><![CDATA[Howto]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat/Fedora Linux]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Sys admin]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/etc/login.defs]]></category> <category><![CDATA[configuration name]]></category> <category><![CDATA[configuration parameter]]></category> <category><![CDATA[PAM]]></category> <category><![CDATA[pass max days]]></category> <category><![CDATA[pass min days]]></category> <category><![CDATA[pass warn age]]></category> <category><![CDATA[password expiry]]></category> <category><![CDATA[shadow password]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/linux-set-default-password-expiry-for-all-new-users.html</guid> <description><![CDATA[Under Linux password related utilities and config file(s) comes from shadow password suite. The /etc/login.defs file defines the site-specific configuration for this suite. This file is a readable text file, each line of the file describing one configuration parameter. The lines consist of a configuration name and value, separated by whitespace. You need to set [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/linux-set-default-password-expiry-for-all-new-users.html/feed</wfw:commentRss> <slash:comments>8</slash:comments> </item> <item><title>FreeBSD: Password expiry / aging policy</title><link>http://www.cyberciti.biz/tips/freebsd-password-expiry-aging-policy-part-i.html</link> <comments>http://www.cyberciti.biz/tips/freebsd-password-expiry-aging-policy-part-i.html#comments</comments> <pubDate>Mon, 06 Mar 2006 17:54:00 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[Howto]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Sys admin]]></category> <category><![CDATA[Tips]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[expiry date]]></category> <category><![CDATA[freebsd account expiration]]></category> <category><![CDATA[freebsd expiration date]]></category> <category><![CDATA[freebsd password expiration]]></category> <category><![CDATA[freebsd setup password]]></category> <category><![CDATA[passwd command]]></category> <category><![CDATA[pw command]]></category> <category><![CDATA[resource limits]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/freebsd-password-expiry-aging-policy-part-i.html</guid> <description><![CDATA[For security reason you must enable Password expiry policy on FreeBSD box. Linux comes with chage command, which changes the number of days between password changes and the date of the last password change. FreeBSD pw command Use pw command to setup password expiry date for existing user account. Syntax is as follows: pw user [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/freebsd-password-expiry-aging-policy-part-i.html/feed</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>Allow normal user to mount linux partitions, usb stick / pen device</title><link>http://www.cyberciti.biz/tips/allow-normal-user-to-mount-linux-partitions-usb-stickpen-device.html</link> <comments>http://www.cyberciti.biz/tips/allow-normal-user-to-mount-linux-partitions-usb-stickpen-device.html#comments</comments> <pubDate>Fri, 15 Jul 2005 18:47:00 +0000</pubDate> <dc:creator>nixCraft</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian Linux]]></category> <category><![CDATA[File system]]></category> <category><![CDATA[Hardware]]></category> <category><![CDATA[Howto]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Linux desktop]]></category> <category><![CDATA[RedHat/Fedora Linux]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[User Management]]></category> <category><![CDATA[/etc/auto.misc]]></category> <category><![CDATA[/etc/init.d/autofs restart]]></category> <category><![CDATA[auto master]]></category> <category><![CDATA[autofs]]></category> <category><![CDATA[chmod command]]></category> <category><![CDATA[desktop group]]></category> <category><![CDATA[group identifier]]></category> <category><![CDATA[shutdown time]]></category> <category><![CDATA[usermod command]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/tips/allow-normal-user-to-mount-linux-partitions-usb-stickpen-device.html</guid> <description><![CDATA[You need to use autofs. It is use to mount file system on demand. Usually autofs is invoked at system boot time with the start parameter and at shutdown time with the stop parameter. The autofs script can also manually be invoked by the system administrator to shut down, restart or reload the automounters. autofs [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/tips/allow-normal-user-to-mount-linux-partitions-usb-stickpen-device.html/feed</wfw:commentRss> <slash:comments>3</slash:comments> </item> </channel> </rss>