Recently Updated Pages
ssh_exchange_identification
(2015-06-05) Seems like a terribly late date to still be messing around with clunkers like these,...
Site to Site VPN with NAT
Problem Setting up a site-to-site VPN using your shiny ASA running 8.2. Your peer has a bunch of ...
Site to Site VPN
(2013-11-12) Problem Site to site VPN with an ASA running 8.2. Solution The local network is 192....
Changing A Remote Gateway IP
(2013-12-05) Problem You have an ASA running 8.2(something). You have a l2l VPN with a remote pee...
Password Reset
Bypass cisco system configuration Plug in your serial console, reboot the ASA press 'ESC' when it...
Mailguard
Problem Can't send or receive some messages through a Cisco ASA firewall. Solution Turn off Mailg...
Faking a secondary IP
(2013-04-30) Problem ASA won't let you define a secondary IP on an interface. Solution Fake it wi...
Debug Site to Site VPN
(2013 March 8) Useful commands for a v9.x VPN debug Phase 1: you want to see MM_ACTIVE in the St...
Creating Custom Kernel RPMs
(Note: may not be relevant to CentOS-4, I stuck this here because the dates (2008) kinda lined up...
Installing From The Vault
(2022-02-01) Problem # sudo dnf (operation) Error: Failed to download metadata for repo 'appstrea...
Find Transparent Proxy Systems
(2021-02-17) Problem A system between me and my destination is doing proxying for the destination...
failed to load driver: swrast
(2021-08-17) Problem: Some variety of libGL error: MESA-LOADER: failed to open swrast: /usr/lib64...
docker
(2020-05-03) Docker on CentOS 8 # dnf config-manager --add-repo=https://download.docker.com/linux...
vsftp: 500 OOPS: chroot
Problem vsftpd in user chroot mode. When logging in, you get: 500 OOPS: chroot Solution You have...
VM Interface Bouncing
(2019-09-13) Problem VM transplanted between two VMware clusters. Ran fine in old cluster for two...
tftp-server
(2018-01-12) Problem I need a tftp server on CentOS 7. Solution # yum -y install tftp-server xine...
Test Sendmail TLS Certificate
(2017-05-04) Problem Test Sendmail's TLS configuration. Solution $ openssl s_client -starttls smt...
systemd
God Damnit What How List services systemctl list-unit-files Start service at boot time s...
Start Interface With No IP Address
(2018-06-19) Problem I want a network interface on my CentOS 7 system to start at boot time but I...
SSL Certificate Warning
(2014-01-20) Problem Email: ################# SSL Certificate Warning ################ Certifi...