Add SSH Key on Ubuntu

Run this command: nano .ssh/authorized_keys


Increasing Attachment Size in Posfix

Source: https://easyengine.io/tutorials/mail/postfix-attachment-size/ Postfix by default restrict attachment size to approx 10MB i.e. 10240000 bytes. You can check it using following command: postconf | grep message_size_limit To change attachment-size to say 50 MB, run a command like: postconf -e message_size_limit=52428800 Note: If you are running a mail-server with SMTP/IMAP access, you need to change postfix attachment size… Continue reading Increasing Attachment Size in Posfix