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!

White Paper
Linux Management with Red Hat Satellite: Measuring Business Impact and ROI

Linux has become a key foundation for supporting today's rapidly growing IT environments. Linux is being used to deploy business applications and databases, trading on its reputation as a low-cost operating environment. For many IT organizations, Linux is a mainstay for deploying Web servers and has evolved from handling basic file, print, and utility workloads to running mission-critical applications and databases, physically, virtually, and in the cloud. As Linux grows in importance in terms of value to the business, managing Linux environments to high standards of service quality — availability, security, and performance — becomes an essential requirement for business success.

Learn More

Sponsored by Red Hat

White Paper
Private PaaS for the Agile Enterprise

If you already use virtualized infrastructure, you are well on your way to leveraging the power of the cloud. Virtualization offers the promise of limitless resources, but how do you manage that scalability when your DevOps team doesn’t scale? In today’s hypercompetitive markets, fast results can make a difference between leading the pack vs. obsolescence. Organizations need more benefits from cloud computing than just raw resources. They need agility, flexibility, convenience, ROI, and control.

Stackato private Platform-as-a-Service technology from ActiveState extends your private cloud infrastructure by creating a private PaaS to provide on-demand availability, flexibility, control, and ultimately, faster time-to-market for your enterprise.

Learn More

Sponsored by ActiveState