Gist for common programs on running SSH on Intel Galileo Gen 2 [source: https://communities.intel.com/message/208564 ]

interfaces

# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
 
# The loopback interface
auto lo
iface lo inet loopback

# Wireless interfaces
iface wlan0 inet dhcp
	wireless_mode managed
	wireless_essid any
	wpa-driver wext
	wpa-conf /etc/wpa_supplicant.conf

iface atml0 inet dhcp

# Wired or wireless interfaces
auto eth0
iface eth0 inet dhcp
iface eth1 inet dhcp

# Ethernet/RNDIS gadget (g_ether)
# ... or on host side, usbnet and random hwaddr
#iface usb0 inet static
#	address 192.168.7.2
#	netmask 255.255.255.0
#	network 192.168.7.0
#	gateway 192.168.7.1

iface usb0 inet static
	address 169.254.0.2
	netmask 255.255.0.0
	network 169.254.0.0
	gateway 169.254.0.1

# Bluetooth networking
iface bnep0 inet dhcp

SSH_IP.ino

 void setup() {
 // put your setup code here, to run once:
system("telnetd -l /bin/sh");
system("ifconfig eth0 169.254.0.2 netmask 255.255.0.0 up");
system("sudo service ssh start");
}

void loop() {
 // put your main code here, to run repeatedly: 
 
}

SSH_IP_LISTEN.ino

void setup() {
 // put your setup code here, to run once:
system("telnetd -l /bin/sh");
}

void loop() {
 // put your main code here, to run repeatedly: 
 system("ifconfig eth0 > /dev/ttyGS0");
}