Remote Window Managers
Lots of times it's extremely frustrating or time consuming to run an xterm on a remote host just to fork your programs from that remote machine. Why not just run your window manager there even though you're not on its console? The window manager is just another X application, after all, isn't it?
Fire off your local X server
xinit /usr/bin/xterm -- :1 &
yields a vanilla X session with merely an xterm running - no window manager. Now you need to add permissions to this window session for the remote host. You can tunnel the connection through SSH if your network is insecure but there's a distinct performance hit. If your network is secure, you can just "xhost +remotehost" and spray directly to your X server:
ssh -fY remotehost /usr/bin/wmaker
or spray directly:
ssh -f remotehost /usr/bin/wmaker -display localmachine:1
The first option, if your remote SSH server supports it, will use a locally defined DISPLAY that then gets tunneled to your local side over SSH. The second option allows remotehost to send X data directly to your local display, then runs WindowMaker there but displaying it locally. Now all your desktop actions are done on the remote machine, not locally.
Our special thanks to Bill from Washington state for this tech tip.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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