Recently Updated Pages
Link Monitor
(2023-11-15) Example Link Monitor Configuration config system link-monitor edit "VLAN601" set src...
dotfiles
(2024-11-24) Dotfiles for my personal consumption: # wget https://raw.githubusercontent.com/xdroo...
List IPs by number of successful mail transactions
(2024-11-22) for z in /var/log/maillog* ; do for i in `grep stat= $z | awk '{print $6}' | sort ...
List all sender, receiver addresses for successful relay IPs
(2024-11-22) mkdir tmp.$$ cd tmp.$$ for z in /var/log/maillog ; do for i in `grep stat= $z | aw...
mrrogers
(2014-07-17) MrRogers knows who is in your neighbourhood. mrrogers is a perl script which uses sn...
Bulk Check IPs Against List Of Subnets
(2024-11-15) Problem You have a logfile full of IP addresses and you need to figure out if they b...
getarp
A perl script to get the ARP table out of a router. Requires Net::SNMP, Net::hostent, and Sys::Sy...
IPsec MTU Varies By Encryption Algorythm
(2024-11-13) Stronger encryption algorithms equals to lower MTU values. For example, the FortiGat...
TCP Tuning for 10G
(2024-11-12) This page contains a quick reference guide for Linux tuning for Data Transfer hosts ...
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...
iperf3
(2024-11-12) Most of the time I'm running iperf3 to understand the capability of a long distance ...
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...
Notes on iperf
(14 August 2012) Available on rpmforge. Basic throughput testing, TCP: run the server # ipe...
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...