linux links

Useful linux things

Linux dual monitors

Get available displays:

xrandr

In case HDMI1 is the second display:

xrandr --output HDMI1 --auto --right-of LVDS1

Scrape .svn files

find . -name .svn -exec rm -rf '{}' \;

Check before and after with

find . -name .svn -exec ls '{}' \;

Disable ipv6

sysctl -w net.ipv6.conf.lo.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1
sysctl -w net.ipv6.conf.all.disable_ipv6=1

or add the last argument of these lines to /etc/sysctl.conf

Command line internet

Wireless

These are contents of /etc/wpa_supplicant.conf. Look at man wpa_supplicant for other authentications

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=root

network={
  ssid="SomeWIFI"
  scan_ssid=1
  key_mgmt=WPA-EAP
  eap=TTLS
  identity="my.email@example.com"
  anonymous_identity="anonymous@example.com"
  password="myp455w0rd"
  ca_cert="/path/to/certificate.pem"
  phase2="auth=PAP"
}

Then run this, assuming wlan0 is your wireless interface

ifconfig wlan0 up

wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf

add -B flag to run in background. Then

dhcpcd

Wired

Put this in your wired.conf

ctrl_interface=/var/run/wpa_supplicant
ap_scan=0

network={
  key_mgmt=IEEE8021X
  eap=TTLS
  identity="my.email@example.com"
  anonymous_identity="anonymous@example.com"
  password="myp455w0rd"
  ca_cert="/path/to/certificate.pem"
  phase2="auth=PAP"
  eapol_flags=0
  priority=5
}

Then run

wpa_supplicant -i eth0 -D wired -c /path/to/wired.conf -B

dhcpcd