Category Archives: Linux

Creating a new SSH key with ed25519 encryption

A while ago, I prepared notes about creating an SSH key for use with Gitlab (and other SSH-based servers). That guide, http://crmda.dept.ku.edu/guides/34.GitLab/34.gitlab.pdf , explains the basic ideas of SSH keys. Today I learned that when interacting with an SSH server, … Continue reading

Posted in Linux | Leave a comment

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

Posted in Linux | Tagged , , , | 41 Comments

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

Posted in Linux | Tagged | Leave a comment

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

Posted in Linux | Tagged | Leave a comment

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

Posted in Linux | Tagged , , , | Leave a comment

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

Posted in Linux | Tagged , , | Leave a comment

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

Posted in Linux | Tagged , , | Leave a comment

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

Posted in Linux | Tagged | Leave a comment

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

Posted in Linux | Tagged , | Comments Off on Legal characters in file names

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

Posted in Linux | Comments Off on Linux create ssh keys