misc cli notes

Unorganized list of cli commands I frequently need to look up.

• restart network

  doas /etc/init.d/networking restart
  

• use this command to add your Wi-Fi network to wpa_supplicant

  doas sh -c "wpa_passphrase 'ExampleWifiSSID' 'ExamplePassword' >> /etc/wpa_supplicant/wpa_supplicant.conf"
  

• Scan wifi networks in range

  ip link show # gives me the wlan0 interface name
  doas iw dev wlan0 scan | grep SSID # shows all the wifi networks in range
  

• to see device status and set up before running wpa_supplicant through the cli

  ip link show wlan0
  doas ip link set wlan0 up
  doas wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B -d
  

• show soft blocks on network devices

  rfkill list
  

• show errors with wlan0

  dmesg | grep -i wlan0
  

• request a new ip address from the dhcp server

  doas udhcpc -i wlan0 -f -v
  

• see all incoming dhcp reqests

  doas tcpdump -i enu1u1u1 port 67 or port 68
  

• Get network info and passwords

  doas cat /etc/wpa_supplicant/wpa_supplicant.conf
  

• List all wifi networks in range

  doas iw dev wlan0 scan | grep SSID
  

• Mount SD card using udisksctl

  jone@phosphene ~ $ udisksctl mount --block-device /dev/sda            17:55:09
  Object /org/freedesktop/UDisks2/block\_devices/sda is not a mountable filesystem.
  
  jone@phosphene ~ $ doas fdisk -l /dev/sda                             17:55:24
  doas (jone@phosphene) password:
  Disk /dev/sda: 60 GB, 63909658624 bytes, 124823552 sectors
  3900736 cylinders, 1 heads, 32 sectors/track
  Units: sectors of 1 * 512 = 512 bytes
  
  Device  Boot StartCHS    EndCHS        StartLBA     EndLBA    Sectors  Size Id Type
  /dev/sda1    0,0,0       0,0,0            32768  124823551  124790784 59.5G  7 HPFS/NTFS
  
  jone@phosphene ~ $ udisksctl mount --block-device /dev/sda1           17:56:38
  Mounted /dev/sda1 at /run/media/jone/HDZERO