Paranoid Penguin - Managing SSH for Scripts and cron Jobs

Anything that you can do from a shell command, you can do remotely with SSH. Here's how to set up keys for effective, secure remote tasks from cron jobs and scripts.
______________________

Comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

one more option

gyjanos's picture

My desktop at home is running constantly and my SSH identity is registered with ssh-agent. I save the variables SSH_AGENT_PID and SSH_AUTH_SOCK in a file (~/.ssh/env), so that cron jobs can source that file and use ssh happily. Of course it is a drawback the passphrase has to be entered (once) before the cron jobs start running. (In my case this is naturally the first thing to do right after boot-up (2-3 times a year...))

I got excited when i saw the explanation of the -q option of ssh, as that would have been exactly the thing i needed (do not leave log)... But that description belongs to sshd and not ssh. (The article indeed quoted sshd's manpage, but used it in the context of ssh. The similarities/differences of ssh/sshd options are indeed confusing sometimes...) Too bad...

Great article!

Free Dummies Books
Continuous Engineering

Learn:

  • What continuous engineering is
  • How to continuously improve complex product designs
  • How to anticipate and respond to markets and clients
  • How to get the most out of your engineering resources

Get your free book now

Sponsored by IBM

Free Dummies Books
Service Virtualization

Learn to:

  • Define service virtualization
  • Select the most beneficial services to virtualize
  • Improve your traditional approach to testing
  • Deliver higher-quality software faster

Get your free book now

Sponsored by IBM