Chrooted jail allows run command or service such as http / mysql / postfix with special root directory i.e. chroot changes the root directory for application. The biggest benefit is a service that is re-rooted to another directory cannot access files outside that directory. Basically you are going to set service in sandbox. Chrooting offers [...]
{ 0 comments }
I’ve already written about conceptual information regarding file system, especially data structure and related terms that help you become a successful system administrator. However I do get few emails asking about /opt directory or /usr or /lost+found directories and their purpose on the system. Exploring Linux File System Hierarchy A typical Linux system has the [...]
{ 0 comments }
While administrating a box, you may wanted to find out what a processes is doing and find out how many file descriptors (fd) are being used. You will surprised to find out that process does open all sort of files:
=> Actual log file
=> /dev files
=> UNIX Sockets
=> Network sockets
=> Library files /lib /lib64
=> Executables and other programs etc
In this quick post, I will explain how to to count how many file descriptors are currently in use on your Linux server system.
{ 11 comments }
A quick question from my mail bag: How do I display or get the date when a file was last time accessed? The best and simplest way is to use stat command. It displays file or file system status such as: => File size => File type => Inode number => UID/GID => File access [...]
{ 17 comments }
An inode is a data structure on a traditional Unix-style file system such as UFS or ext3. An inode stores basic information about a regular file, directory, or other file system object.
{ 43 comments }
