grep'ing/tail'ing vsftpd log files on two different servers

[beemer832]

I am running two separate servers that have instances of VSFTPD running on them thats supplying config files to devices via FTP. For troubleshooting purposes we often look at these log files to check for attempts to pull the files.

The problem that I am running into is we have just installed two of these servers using a load balancer for incoming connections. This creates two seperate log files, one on each server. I am wanting to use a service or script that would allow me to connect to both servers simultaneously and grep or tail for log files on both servers.

I use the following two commands depending on if its a live capture or not.

grep -i mac_address /var/log/vsftpd/vstftpd.log

or

tail -f /var/log/vsftpd/vsftpd.log | grep -i mac_address

any and all help is greatly appreciated.

*will also be doing the same for HTTPD log files as well.

thanks
josh

[vsemaska]

Probably the thing to do is execute the commands remotely on those servers by using ssh and public/private keys so passwords don't have to be entered.
Your 1st command would look something like:

ssh -i identity_file server1 "grep -i mac_address /var/log/vsftpd/vstftpd.log"

Look at the manpage for ssh-keygen on generating public/private keys.