I want to connect to a remote server which I have a mySQL DB on, and do a mysqldump so I have a backup. I will likely schedule this with CRON to run every night.
However, to make any changes to the mySQL server I have to SSH onto it, binding my local mySQL port to the remote one.
Is this possible to do in a shell script?
I would normally connect using a command in the format:
and am then prompted for the password.
So my main question is can I issue the password in the shell script? I know that this would leave it vulnerable as the password would be un-encrypted in the script but for the moment I'm not worried about that.
The other alternative is to do the mysql dump on the sever itself, and then have a script on my backup server to retrieve the backup file using FTP, but I'd rather not do this is possible.
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One way to do this is to set up an SSH key pair (without a password) between your two servers. This will permit you to SSH between servers in a secure manner using the crypto key pairs, without a password. Many folks do this.
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