Renew SSL certificates - courier and imap server in Ubuntu

Remove the expired .pem file

rm  /etc/courier/imapd.pem

Just open and check if the entries are recent (like contact email etc). This is NOT a mandatory step.

nano  /etc/courier/imapd.cnf

 Issue the following command to create new .pem file

mkimapdcert

Restart imap SSL service

/etc/init.d/courier-imap-ssl  restart

Configuration parameter to make git ignore carriage return difference

Configuration parameter to make git ignore carriage return difference

in Unix/Linux and Windows

git config core.autocrlf false

Reattaching to a screen in Ubuntu using processid

screen -d -r  pid