The default install of Red Hat Enterprise Linux 6 (RHEL6 and CentOS6) automatically includes the NetworkManager service which was optional in previous versions. The purpose for NetworkManager is to make RHEL6 more portable which is great for a notebook computer or perhaps a desktop. Portability is not a major concern for a server. Usually servers are fairly fixed and configuration of network settings is done statically using manual tools. NetworkManager also does not support many advanced networking features like IP forwarding. Continue reading “How To Uninstall, Disable, and Remove NetworkManager from RHEL6 and CentOS6“
Several students in our PHP/mySQL class have asked about installing Netbeans IDE and/or Sublime-Text editor in their CentOS6 virtual servers. After researching the installation instructions for these programs, I determined that there was no one place that explained what our students were looking for. Therefore, I am going to provide an installation guide here. Continue reading “How To Install Netbeans with JDK Bundle and Sublime-Text in CentOS6 and RHEL6“
Log in as root and enter the following line of code:
gconftool-2 --direct --config-source=xml:readwrite:/etc/gconf/gconf.xml.defaults --type bool --set /apps/gdm/simple-greeter/disable_user_list true
Either reboot your server or log out and then log back in to check your fix.