Recently Updated Pages
TCP Tuning for iperf3
(2024-06-03) Found this set of recommendations for TCP tuning while chasing some iperf3 issues re...
Unifi Controller
Installing Unifi Controller on Docker on CentOS 8 (or probably any docker installation at this po...
Find Tricks
Excluding stuff (say, the .snapshot directory of a find) $ find $dir -name .snapshot -prune -o -t...
Chrome Certificate Warning Bypass
(2022-09-07) Prevent the certificate warning page from popping up on subsequent initial connectio...
Mounting CD-ROMs
Figure out what your cdrom drive's device is. For your own peace of mind, don't use SAM, becaus...
Quick Start
GnuPrivacyGuard basics These are the bare-bones instructions to get you going. Reading the docume...
GPG-aware mail clients and plugins
(Note, 2024: man, the '90s were a long time ago, right?) You may find a starting point here: www...
GPG Key Server Operations
The server subkeys.pgp.net is the preferred keyserver (for various reasons expounded at length el...
insecure memory
Basically this boils down to the application being unable to exclusively lock the memory page bec...
About GPG
You may have been directed to this page by Dave's email signature, and because you noticed some k...
makeinfo build error
2013-05-15 Problem Building gcc 4.1.2 on CentOS 6 halts with the error: WARNING: `makeinfo' is mi...
DHCP Reservation Not Working
A: dhclient now supports RFC-4361! (Please note that this is an answer to a question nobody asked...
Upgrading Fedora
(2019-03-18) Problem I want to update Fedora to another version. In General It is recommended to ...
Set Hostname To VM Name
(2019-11-28) Problem /t Solution For whatever reason, the vmware-tools package (and the open-vm-t...
Samba AD Controller Notes
(2019-11-25) Backplot At a new customer site, I inherited a Active Domain that was hosted on a Sa...
Join AD
(2019-11-28) Problem # realm -v -U dave join mydomain.local [...] ! Couldn't create computer acc...
Firewalld Limit Remote Source Connections
(2019-02-14) Problem I have an internet-facing service that I want to restrict to a particular (s...
Example nmcli Commands
(2018-10-15) Problem nmcli Solution Some recently discovered examples: # nmcli con # nmcli con s...
PPTP VPN Client
(2018-04-30) Setting A PPTP VPN Client You have to set the firewall to accept GRE tunnel traffic:...
Starting httpd
Problem How do I start up httpd in this brave new systemd world? Solution Firewall (note your zon...