Post tagged: Sys Admin

Unix Archive Tools

The cpio(1) namd is derived from CoPy In and Out. Cpio was standardized in POSIX.1-1988, but it was omitted from POSIX.1-2001 because of its file size and other limitations. The use of cpio by the RPM Package Manager make cpio an important archiving tool.

Bash Tip - Beware of spaces

Everyone knows that filenames and variables can contain spaces, but when it comes to writing a shell script most of the shell developers seem eager to forget that fact and write scripts that do not safely handle filenames containing spaces.

I can't count the numbers of time I saw ...

Using SSH with an SSH bastion

One of the tasks of system administrators is to secure the machines inside of their network. To do so you usually configure access lists on your router to prevent access from the outside. If all the ports are blocked the system administrators won't be able to connect to the ...