Exim4 introducted new behaviour in the versions included in Debian Stretch. Suddenly, the RFC max line length of 998 characters is enforced, and emails with lines exceeding this length are returned to sender. For the interested, part of the discussion about this feature is over here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=839147 Anyway, the solution to this issue in Debian […]
Before reading this, please note that much of the information in mcelog is hardware dependent. Your mileage may vary. Memory gone bad So one of the servers, running an X99-WS/IPMI board from Asus, began putting errors into /var/log/mcelog. Thankfully, they were all the same, telling me the following: mcelog: failed to prefill DIMM database from […]
Someone recently asked, in #bash on Freenode, how to find duplicate files with Bash. Several options were suggested, and the user ended up installing and running “fdupes“. However, this sort of thing should be reasonably easy to do using “find” and a few pipes. As a quick overview, what you want to achieve is to […]
Found myself needing this. If you need it too, here it is.
Cygwin stopped being compatible with Windows XP in 2016. Following this post on stackoverflow, you can find the setup files and a (very slow) mirror that’s compatible. I made my own, considerably faster, mirror of the last Windows XP compatible Cygwin release, at http://cygwinxp.cathedral-networks.org/ The mirror date is 2016-08-30, the 30th of August 2016 AD. […]
Repurposing an old developer machine to run some light VM’s, I was tasked with getting Hyper-V Server running on the Asus Maximus V GENE motherboard. Simple enough. Download Hyper-V for free from Microsoft, format a USB stick with FAT32, put all the files from the .ISO on the stick, install. Diskpart Cheat Sheet 1) Open […]
Here are a couple of useful functions I wrote to kill a process tree. It’s useful when dealing with tcpserver, which refuses to disconnect a client for as long as a process it started, or a child of that process, still runs. It’s also good for tackling runaway unintentional fork bombs, rogue daemons and other […]
Telnet servers are everywhere. They are simple, insecure by nature, outdated, and often badly implemented. Let’s do that, shall we? 🙂 TL;DR: Here’s the library. A simple way to make any command line interface listen to incoming TCP connections is tcpserver, provided as part of the ucspi-tcp or ucspi-tcp-ipv6 package on Debian. Using this, we […]
So.. this shit again. # apt-get update Ign http://ftp.debian.org jessie-updates InRelease Ign http://ftp.debian.org jessie-updates Release.gpg Ign http://ftp.debian.org jessie-updates Release Ign http://ftp.debian.org jessie-updates/main Sources/DiffIndex Ign http://ftp.debian.org jessie-updates/main i386 Packages/DiffIndex Ign http://ftp.no.debian.org jessie InRelease Ign http://ftp.no.debian.org jessie Release.gpg Ign http://ftp.no.debian.org jessie Release Ign http://ftp.no.debian.org jessie/main Sources/DiffIndex Ign http://ftp.no.debian.org jessie/main i386 Packages/DiffIndex Ign http://security.debian.org jessie/updates InRelease Ign http://security.debian.org […]
From a .deb file: dpkg -i –force-confmiss <package>.deb Or with apt-get: apt-get install –reinstall -o Dpkg::Options::=”–force-confmiss” <package>