Abhinav Krishna C K abbyck

Tcpdump

Tcpdump is a commandline tool that is used to dump traffic on a network. This tool comes in hand when you want to analyse network captures within the command line. Basically it can do most of the wireshark job.

NOTE This guide might not be complete it just serve as a reference to me.

Additional Note & Reference

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.17.1 darwin/amd64.

GOOS Values

GOOS	Out of the Box
`aix`	✅
`android`	✅

NetworkManager WiFi Power Saving

NetworkManager supports WiFi powersaving but the function is rather undocumented.

From the source code: wifi.powersave can have the following value:

NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0): use the default value
NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1): don't touch existing setting
NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2): disable powersave

	# /etc/sysctl.d/wireguard.conf
	net.ipv4.ip_forward=1
	net.ipv6.conf.all.forwarding=1
	net.ipv6.conf.default.forwarding=1
	net.ipv6.conf.eth0.proxy_ndp=1

	#/etc/wireguard/wg0.conf (DO virtual machine)
	[Interface]
	# The server interface does not actually need an ipv6.
	# The 2 following must be repeated for each used addres [0, 1]