Is it safe to open a forgejo git ssh port in my router?
Hello all! Yesterday I started hosting forgejo, and in order to clone repos outside my home network through ssh://, I seem to need to open a port for it in my router. Is that safe to do? I can't use a vpn because I am sharing this with a friend. Here's a sample docker compose file:
version: "3"
networks:
forgejo:
external: false
services:
server:
image: codeberg.org/forgejo/forgejo:7
container_name: forgejo
environment:
- USER_UID=1000
- USER_GID=1000
- FORGEJO__database__DB_TYPE=postgres
- FORGEJO__database__HOST=db:5432
- FORGEJO__database__NAME=forgejo
- FORGEJO__database__USER=forgejo
- FORGEJO__database__PASSWD=forgejo
restart: always
networks:
- forgejo
volumes:
- ./forgejo:/data
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
ports:
- "3000:3000"
- "222:22" # <- port 222 is the one I'd open, in this case
depends_on:
- db
db:
image: postgres:14
restart: always
environment:
- POSTGRES_USER=forgejo
- POSTGRES_PASSWORD=forgejo
- POSTGRES_DB=forgejo
networks:
- forgejo
volumes:
- ./postgres:/var/lib/postgresql/data
And to clone I'd do
git clone ssh://git@<my router ip>:<the port I opened, in this case 222>/path/to/repo
Is that safe?
EDIT: Thank you for your answers. I have come to the conclusion that, regardless of whether it is safe, it doesn't make sense to increase the attack surface when I can just use https and tokens, so that's what I am going to do.
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I see, only allowing established traffic to connect sounds like something that could work. But I don't know how I can do this, do you have some pointers :)?
Blocking outgoing traffic and having to whitelist forgejo seems a bit extreme though
Blocking outgoing traffic isn't needed. But was mere a headsup if that is something you've alread setup. What router do you have? Usually when you open a port there is a dropdown menu or checkboxes for what kind of connection the port opening is allowed.
I'd rather not say which router I have since it would reveal quite a bit of information about me. However, I do know that the connections that my router allows are tcp and udp