Profile cover photo
Profile photo
Nitzan Raz
74 followers -
lol iunno
lol iunno

74 followers
About
Posts

Post has attachment
Linux and SSDs - Should You TRIM?
Note: Although my experience is with Debian, I think this post helps anyone using some modern Linux distribution. What is TRIM? As a Windows sysadmin, I didn't really consider the cons of running on top of Solid-State Drives , or SSDs. These drives are base...
Add a comment...

Post has attachment
Add a comment...

Post has attachment
Adding Repositories for Inspection
Sometime I want to inspect software repositories. However, I don't want my machine to actually install anything from it. To do so, I made a small bash function that both adds the repository and pins it to priority -1, telling apt to never install anything f...
Add a comment...

Post has attachment
My Pinning Guidelines
In my previous post about pinning I talked about the reasons to configure apt pinning. This post details my logic about what and how to pin. Pinning technicalities How pinning is done The best way to pin stuff is to add files in /etc/apt/preferences.d/ Thos...
Add a comment...

Post has attachment
Why Pinning
There are plenty of guides about apt pinning, but no one really explains the motivation to do so. It took me some time to understand that, so I thought I'd write it down. The Issue The mainstream method of downloading and installing packages from a reposito...
Add a comment...

Post has attachment
Setting up Gargoyle as a Time Server
The Story For reasons unknown to me, Debian's NTP daemon only works on udp port 123, even when operating as a client. This is a problem because my network configuration does not allow incoming packets on this port, thus preventing my raspberrySeed (raspberr...
Add a comment...

Post has attachment
Timing Execution By Output Lines
The Story Today I got annoyed that some puppet agent runs took me over 90 seconds to complete, even though they actually did nothing (no change was needed). I wanted to see which part of the run took the longest, so I tried this: sudo puppet agent -test -...
Add a comment...

Post has attachment
Timing Execution Using Output Lines
The Story Today I got annoyed that some puppet agent runs took me over 90 seconds to complete, even though they actually did nothing (no change was needed). I wanted to see which part of the run took the longest, so I tried this: sudo puppet agent -test -...
Add a comment...

Post has attachment
Hijacking a process's i/o streams using gdb
The Story I recently had a very annoying problem - some daemon failed, but ran fine when told to run at foreground (not daemonize). Running at foreground is the easiest way to debug processes, because that way you get their input / output / error streams in...
Add a comment...

Post has attachment
Testing Local Facebook Applications with ABE
I'm using Firefox with NoScript , which is the AdBlock of scripts - allowing you to selectively block scripts according to various rules (e.g. block all scripts from analytics.google.com), and additionally helps protecting you from XSS ( cross site scriptin...
Add a comment...
Wait while more posts are being loaded