Month: May 2019

First find out the ip address that’s blocked

iptables -n -L --line-numbers | grep 192.168.1.20
or
last -i | grep username

Then run fail2ban

fail2ban-client set sshd unbanip 192.168.1.20

1. C-x C-f  –> Opens a file, asks for the file name. If it cannot find the file, it  creates the file. It’s in the buffer so it’s now saved yet
2. C-x C-s –> Saves the file without a prompt
3. C-x s –>     Saves all files with a prompt
4. C-x C-w –> Saves the file with a different name. As for the name.

// Emacs creates a backup of current file and nanes it with a ~
// Emacs also auto-saves everyting with the name #filename#
// If you quit emacs without saving, you can see this auto-save file.

• C-x C-c –> to quit
•  To recover file, open file then press ESC-x revover-this-file then press enter
  // M-x means Esc-x on a PC
  // To recover a file without a file name use recover-session

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Copy and Paste
———————

• C-k cut
• C-y paste
• C-space Starts marking/highlighting a region
• C-w Cuts whatever is highlighted
• C-y pastes it back

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Cursor commands
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• C-a Beginning of a line
• C-e End of line
• Esc  > To the end of file
• Esc < To the beginning of file
• C – / Undo
• C-g C-/ Redo