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I don't have root access on my hosted web server, but I would like to use tools like MultiTail to monitor log files that are generated on my web host.

Is there a way I can pipe the log output on my remote host ( I have ssh access ), to my locally running MultiTail?

The local machine is running Ubuntu 9.04. The remote machine is running FreeBSD 6.


The answer in a nut-shell:

1) Set up key-based login for ssh.

2) Execute the following command:

multitail -l "ssh -l USER HOST tail -f ./www_logs/access_log" -l "ssh -l USER2 HOST2 tail -f ./www_logs/access_log"
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up vote 7 down vote accepted

You could try something like this:

multitail -l "ssh remotehost tail -f /var/log/messages" \
          -l "ssh remotehost tail -f /var/log/mail.log"

I'm sure there are lots of nice multitail options I'm missing, but that should at least get the basics working.

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multitail exits because ssh requests my login password. is there a way to pass the password through? or do i need to set up those ssh certs that allow password-less login? – Ian Aug 13 '09 at 22:52
The key-based logins are the way to go. There are a ton of good HOWTOs for setting that up. This one looks pretty thorough: – Insyte Aug 14 '09 at 6:33
i got the key-based login working, but the ssh remotehost tail -f /logfile command doesn't seem to work. is there a special syntax required by ssh to pass it a command to execute after log in? – Ian Aug 14 '09 at 19:51
Aha, got it.. Here's the full command to get it working after setting up the key-based login: multitail -l "ssh -l USER HOST tail -f ./www_logs/access_log" -l "ssh -l USER2 HOST2 tail -f ./www_logs/access_log" – Ian Aug 14 '09 at 19:55

If you have access to compilers on the remote box, just compile multitail up there, and install it in your user's directory.

./configure --prefix=~/bin/

Should work fine as long as ncurses is installed.

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I'm a noob. Can you give me a little more detail about how I would do this? :) – Ian Aug 13 '09 at 22:46
Follow the same steps you did to compile it on your local machine. But when you run ./configure, simply add --prefix=~/bin/ to it. Then when you go to run the command, use ~/bin/multitail file1.txt file2.txt ... – Jack M. Aug 14 '09 at 16:09

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