Technical stuff from a bit-head
Articles, write-ups, etc.
Fair warning – this is not a bit-head post, but a gear-head post. I like to do what maintenance I can on my vehicles, which doesn’t amount to a whole lot. But it provides...
I wanted to set up a docker registry at home for images I build but which I do not want to be publicly available. Running the default docker registry container was one solution. But...
A while after I upgraded my server to CentOS 7, WordPress started griping about needing newer PHP in order to install the latest PHP. I knew this caused problems with roundcube in my CentOS...
One of the things I run (I think it was WordPress) was griping at me to update PHP to at least version 5.4. But I was on CentOS 6, which stops at 5.3 by...
Running PostfixAdmin 2.92 on a box with dozens of domains. An admin tried to delete mailboxes and got the error: Problems running mailbox postdeletion script! How I fixed it To run scripts after...
Most of us have, at some time, experienced slow logins when connecting to a server via ssh. If you poke around you’ll discover that there are plenty of recommendations for addressing the issue. For...
Details of my post-mortem on a mail/web server that was compromised back in 2006. Here
For isc-dhcp-server: I tried several things which did not work. I concluded that this is primarily because isc-dhcp-server doesn’t use a true systemd script. So I edited the sysV startup script (/etc/init.d/isc-dhcp-server) and inserted...
In my case, the vCenter was “asking” if I wanted to accept the self-signed certs. Packer doesn’t really pass that on to you. Add these options to the “post-processors” section: “options”: [ “–acceptAllEulas”, “–disableVerification”,...
Use this line: # nmcli con mod ens160 ipv4.method static ipv4.addresses ${IPADDR} ipv4.gateway ${GATEWAY} ipv4.dns ${DNS_SERVERS} The DNS servers (if more than one) should be in quotes and comma-separated (i.e. “10.1.1.5,10.2.2.6”)
Had a system where the user wanted to disable the crash kernel after a previous admin had enabled it. I found a ton of write-ups showing how to enable and configure kdump, but few...