Useful tips for everyday
How to stop spam with Postfix email server? How to stop spam / UCE with the Postfix mail transfer agent (MTA). Actual spam email is…
How do you split a large file in Unix? If you use the -l (a lowercase L) option, replace linenumber with the number of lines…
How do I undo gzip? Use the following method to decompress gzip files from the command line: Use SSH to connect to your server. Enter…
How do I add a banner to ssh? How to display banner/message before OpenSSH authentication Log in to remote Linux and Unix server. Edit the…
How do you sort a list of lists by an index of each inner list in Python? The sort() method sorts the list of lists…
How do you write commands in Cygwin? Common Cygwin commands: cp copy – Make a copy of a file. rm remove – Delete a file.…
How do I delete a row in only one column? To do this, select the row or column and then press the Delete key. Right-click…
How to configure IPv6 on a Debian based system? You can use 6to4 networking to get an IPv6 network based on your IPv4 address. This…
What should be included in a custom menu in GRUB 2? As a minimum, a valid menuentry should include: GRUB 2 features such as Passwords…
How do I find network interfaces in Solaris 11? Another easy way to quickly check the interface link status – is to check “ifconfig -a”…