Services

A service is provided by calling a WP:port on a remote machine Each service uses a specific port on the machine running it In order to access a service from outside a LAN, the router must open one of its own port and transmit the data towards the service's port, a process known as "port forwarding" Please note that, while you can't change what port is used by a service, it IS possible to open (almost) any port on the router, as long as no device uses the same port twice

Players are able to obtain 4 services in regular shops, while 4 extra services can be found on the NPC machines Each service is running from a specific library in the /lib/ folder : this library determines the service's version and which exploits can be used against it. It's recommended to run services on rented servers rather than your own machine, as your remote computer is shutdown once you quit the game

Here is the list of ports used by default:

Service name	Port number	Open port?	For players?	Library name	Tool	Uses	Real-life reference
NONE	0	N/A	N/A	router_kernel.so	N/A	Metaxploit interprets a NULL or 0 port as "launch a router exploit"	Same use : 0 can't be assigned and is used to indicate "no port"
ftp	21	Open	Yes	libftp.so	ftp command	Used in "hosting services" missions	They are protocols with an assigned well-known port
ssh	22	Open	Yes	libssh.so	ssh command
http	80	Open	Yes	libhttp.so	Browser.exe	Allows the administrator to host a website available to other players The website can have additionals uses : bank, mail, downloads, missions...
	8080	Closed	No (router)			Used to access the port forwarding interface without using the http port	8080 is an "alternative port" (often for testing websites during development)
chat	6667	Open	Yes	libchat.so	Chat.exe	Allows the machine administrator to create his own chat channel Also necessary to setup a guild mainframe	IRC protocol uses port range 6665-6669
smtp	25	Open	No	libsmtp.so	smtp-user-list (exploit)	When hacked, list all the service users	It's a protocol with an assigned well-known port
bank_account	141	Closed	No	libsql.so	NONE	No uses in current GH version besides lore	Despite being in the 0-1024 range, this port is not assigned
employees	3306 or 3307				EmployeesViewer.exe	Acts as a "generic sql" port on students/criminals missions EmployeesViewer.exe allows to read either students or criminals databases	Port 3306 refers to MySQL, one of the database systems based on SQL Port 3307 is unassigned
students	3306				StudentsViewer.exe	Can be edited with StudentsViewer.exe The objective of "University Hacking" missions
criminals	3307				CriminalsViewer.exe	Can be edited with CriminalsViewer.exe The objective of "Police Hacking" missions
*varies*	XXXXX	(outside only)	N/A	N/A	N/A	Appears when a NPC lan provides the same service on two separate machines The duplicated service is then forwarded as a random 5-number port	N/A