LINUX NETWORK

Turn off NetworkManager:

• chkconfig NetworkManager off
• systemclt disable NetworkManager.service

Setting gateway:

/etc/sysconfig/network

NETWORKING=yes
HOSTNAME=[hostname]
GATEWAY=[IP]

Bonding module:

/etc/modprobe.d/bond.conf

alias bond0 bonding
options bond0 miimon=100 mode=1

Setting ordinary interfaces:

/etc/sysconfig/network-scripts/ifcfg-[dev_name]

DEVICE=[dev_name]
BOOTPROTO=none
HWADDR=AA:AA:AA:AA:AA:AA
ONBOOT=yes
MASTER=bond0
SLAVE=yes
NM_CONTROLLED=no

Setting bond interfaces

/etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
IPADDR=[IP]
NETMASK=[MASK]
IPV6INIT=no
NM_CONTROLLED=no

iwlist

• iwlist [interface] frequency

WIFI - wpa_supplicant

wpa_passphrase

• wpa_passphrase "[ssid]" "[passphrase]" #generating psk key which is used by wpa_supplicant.conf

wpa_supplicant.conf

/etc/wpa_supplicant/wpa_supplicant.conf

network={
  ssid="leny"
  #psk="[opentext_passphrase]"
  psk=[psk_from_wpa_passphrase]
  scan_ssid=1
  proto=WPA2 #WPA RSN
  priority=1
  scan_ssid=1 #if ssid is hidden
  #key_mgmt=WPA-EAP
  #key_mgmt=WPA-PSK
}

lanunch wifi steps:

1. ip link set [dev_name] up
2. iw [dev_name] scan
3. wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -Dwext -i[dev_name] -B #run as daemon (-B flag)
4. dhclient [dev_name]
5. ip addr show [dev_name]
6. route add default gw [IP]