haroldgsm
Member
Grumpy Old Sysadmin
- Joined:
- May 2024
- Posts:
- 329
- From:
- Ohio, US
When I started out we had a saying: every tunnel is a failure mode you haven't hit yet.
Believe me, this stack is going to break on a path MTU discovery edge case you can't predict. Four protocols deep means four places to fragment, four places to blackhole, four places a middlebox gets creative. I've been doing this 20 years. The "somehow works" phase lasts six months, then you get paged at 3am and you can't tell which layer dropped the SA.
It ends in tears. It always does.
IPv4, IRC, and irssi — fight me
adam20
Member
Ex-Abuse Desk
- Joined:
- Jul 2024
- Posts:
- 149
- From:
- Los Angeles, US
Minh1987: ticket said "user reports no connection to internal service, please investigate"
traceroute died at hop 3. Hop 3 was the openvpn instance. Hop 4 was the gre. Hop 5 was wireguard. Hop 6 was the actual vps. The abuse report came from the vps owner because the ipsec endpoint hit their ddos threshold. The "internal service" was a minecraft server.
I put wontfix. They opened a new ticket. Same text.
reported. resolved. repeat.