Linux Administration for Nerds
Copyright 2018 Brian Davis - CC-BY-NC-SA
Frequently after installing Debian I find that I need to update the wireless
firmware to get networking working. This involves manually downloading packages
from debian's website and copying over via flash drive. Then installing using
dpkg -i package.deb.
auto wlan0 iface wlan0 inet dhcp wpa-ssid <SSID> wpa-psk <KEY>
Note that wireless-tools is not sufficient. I found the interface would come up and request DHCP would fail. Installing wpasupplicant is required.
If you have intermittent success and notice that wget and apt-get are trying to use ipv6 addresses, uncomment following line in /etc/gai.conf to prefer ipv4
precedence ::ffff:0:0/96 100
After wireless is working install network-manager-kde to get both network-manager and a KDE applet for setting it.
Add user to group netdev. in /etc/NetworkManager/NetworkManager.conf s/managed=false/managed=true/
service network-manager restart
Proxy for yum
In vi /etc/yum.conf
proxy=http://host:port proxy_username=user proxy_password=password
unset HISTFILE export http_proxy='http://user:password@host:port'