Univention UCS would be a sweet “Domain-Controller in a box” solution if there weren’t that many pitfalls like setting the NTP server correctly. That stuff is done via “ucr”, some univention tool on commandline or hidden in their registry. ucr set timeserver=”pool.ntp.org” It’s just as simple as that to stop the ActiveDirectory from acting up…
Category: IT Related stuff
That’s where logic ends
Kernel.org Changelog
The good old Changelog of the Linux-Kernel is quite a monster to read and I cannot imagine that you’d like to read it commit by commit for just maintaining your kernel builds in case of getting a rough idea what happened during the last release. So why not making things a little more short and sweet instead? Let’s […]
Sort IPs
I was doing some research on spam again and had to do some stuff with a couple of IP Addresses. That’s where “sort” came in handy as a tool to do what its name suggests.
OpenSSL Cheat Sheet
Create a strong CSR and private key openssl req -new -nodes -newkey rsa:4096 -out server.crt -keyout server.key Parsing out the data within a certificate openssl asn1parse -in server.crt Checking a certificate/key modulus to see if they correspond openssl rsa -in server.key -modulus -noout | openssl md5 openssl x509 -in server.crt -modulus -noout | openssl md5 Convert a key […]
/dev/null not found?
Today I came across a box with no /dev/null. Disturbingly that box even refused to boot. Here’s a quick fix in case: Boot with some liveCD and chroot or use some emergency shell and kill the defect dev file in case it’s still there and regenerate: rm -rf /dev/null mknod /dev/null c 1 3 chmod 666 /dev/null
x2go client complains about some sshd
Since I am fed up with licensing costs for some TeamViewer solution or any awkward or even complicated VPN stuff I did dig into x2go, a neat solution for sharing some beloved apps on various machines. After all the whole system works until I started to use more of its potential: file and printer sharing. That’s where I […]