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Posts By admin

• unix

  How do I fix my command not found error on my Linux server?

  If you run a command and get a “command not found” error, you can do 2 things; specify the full path to...

• unix

  How do I re-read the kernel configuration file /etc/sysctl.conf on my Linux server?

  If you make changes to /etc/sysctl.conf, such as changing the kernel.shmmax value, you can update the file and then run: sysctl -p...

• programming

  How do I show special characters in the vi editor?

  To show special characters in a file, open the file with vi. Ex. vi /tmp/myfile Then type :set list This will show...

• unix

  How do I register my RHEL 5 Linux server with RHN?

  If you try to run yum update or yum install on a new RHEL 5 server, you will get an error like...

• unix

  How do I check to see if SELinux is enabled on my Linux server?

  Security-Enhanced Linux (SELinux) is a Linux feature that provides a mechanism for supporting access control security policies through the use of Linux...

• unix

  How do I determine how many open files there are on my Linux server?

  To find out how many open files there are on your Linux server, you can use the lsof command. lsof | wc...

• unix

  How do I show the number of free inodes on my Linux server?

  You can show the number of free inodes on your linux server using the command df -i. # servera: df -i Filesystem...

• unix

  How do I set the umask for files created on my Linux server?

  To set the umask for all users, you can update the /etc/profile file. For individual users, you can update their .profile, .bash_profile,...

• windows

  How do I find my MAC address on my Windows 95 or Windows 98 desktop?

  To obtain your MAC address on a Windows 95 or Windows 98 PC, you can use the winipcfg command. Go to Start...

• windows

  How do I find my MAC address on my Windows XP or Windows 2000 desktop?

  Finding your MAC address on a Windows desktop is a pretty simple process. Follow the steps listed below to find your MAC...