Category Archives: Linux

Building R-devel on RedHat Linux 6

  Warning: I’m 85% done with this, formatting is not right. I DO NOT want to type in the prompt in front of every command because then one cannot copy/paste directly.  However, copying some output chunks picks up the dollar … Continue reading

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Get out of fail2ban jail

Ever get locked out of your own computer because you tried the password too many times when you were, well, not paying attention? I found it tough to find how to unban myself and was pretty frustrated by the ambiguity … Continue reading

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OpenBUGS-3.2.3 Linux Packages

I’m very sorry I stopped paying attention to the packaging on openbugs for a while. I stopped reading the gmail account because I hated their labeling system, but that account is where I’m registered in the OpenBUGS list. Oh, well. … Continue reading

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Gambit packages updated

Linux packages for Gambit were built yesterday. All of these do install and I’m able to open the Gambit GUI and create a game. I compiled with no special arguments, these may not include all of the features you want. … Continue reading

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Compiz, Multi-Head, Workspace Backgrounds

The approach described in the post earlier this week works well on single-head systems, but not when there are several monitors. Compiz handles these differently than XFCE4 or Gnome, causing some revision in the script. Since Compiz treats the combined … Continue reading

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Success: compiz wallpapers changed via python script (Ubuntu 14.10 XFCE4)

I started using Linux because it had cool desktop features that made it fun and interesting. The compiz window manager was a highlight, but I stopped using it for a while because I could not make the dbus commands work … Continue reading

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Swarm and Ubuntu 14.04: Package uploads

A couple of very pleasant students have been writing to ask for help on running some Swarm apps and yesterday I decided to rebuild some packages to try to smooth out the process. Here are the things I can remember. … Continue reading

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Legal characters in file names

My email signature has my opinion: Today’s Advice: File names include letters, numbers, periods, dashes, and underscores. NEVER \ / ! * & ^ $ or “. And no spaces. Spaces are bad, they make everything inconvenient. I’m not a … Continue reading

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Linux create ssh keys

These instructions are for a Linux system, but if you install Git for Windows ( msysgit.github.com), you will receive a shell and terminal capability. Usual ssh-keygen will write to ~/.ssh/id_rsa (creates 2 files). In Linux, ~ means $HOME, usually something … Continue reading

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RedHat Security Tightening; Tale of One System

The default RedHat install is possibly more secure than some Linux distributions, but it is also not as tight as we might need. On one KU RedHat system that I did not fine tune–so the default setup was in place–we … Continue reading

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