How do I set this for a protocol? Google says it's an option, but it's
not.

I need to set 1 connection per IP for Telnet and SSH, 2 for NNTP and 3 for
FTP, but I can't figure out how to do that...

Ok, looks like it's max source states. If I set that, I have to pass the
rule. Do I set this for LAN or WAN? I've tried both, applied the rule and
was able to connect from an IP behind a VPN more than once with the max
source states set to 1.

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Shurato, Sysop Shurato's Heavenly Sphere (ssh, telnet, pop3, ftp,nntp,
,wss) (Ports 22,23,110,21,119,999)


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* Origin: Shurato's Heavenly Sphere telnet://shsbbs.net (21:2/148)

I need to set 1 connection per IP for Telnet and SSH

That sounds nice until your terminal session locks up one day and you can't access your things because there's a stale connection and you have to get in from an alternate source which you may or may not have access to right at that time.

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* Origin: 68k Mac Club | bbs.m68k.club (21:1/141)

phigan wrote to Shurato <=-

I need to set 1 connection per IP for Telnet and SSH

That sounds nice until your terminal session locks up one day and you can't access your things because there's a stale connection and you
have to get in from an alternate source which you may or may not have access to right at that time.

There's a subreddit called shittysysadmin where someone complained that
they applied their firewall rules on the wrong interface and locked
themselves out of the network[1] and the responses were hilarious. This
one made me cough up my coffee.

"That's why I always configure a backdoor - TCP 3389 to my domain
controller"

"Please brother at least tell me you used Password1 and not just Password
for administrator."

"I used Summer2029!, so it'll be secure for another 3 years"


[1] I've done that.


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* Origin: realitycheckBBS.org -- information is power. (21:4/122)

* In a message originally to Shurato, phigan said:

I need to set 1 connection per IP for Telnet and SSH

That sounds nice until your terminal session locks up one day and you
can't access your things because there's a stale connection and you have
to get in from an alternate source which you may or may not have access to right at that time.

--- * Origin: 68k Mac Club | bbs.m68k.club (21:1/141)

Just for the BBS, not shell sessions.

--
Shurato, Sysop Shurato's Heavenly Sphere (ssh, telnet, pop3, ftp,nntp,
,wss) (Ports 22,23,110,21,119,999)


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* Origin: Shurato's Heavenly Sphere telnet://shsbbs.net (21:2/148)

Re: Re: OPNSense rules...
By: poindexter FORTRAN to phigan on Mon Aug 11 2025 08:51 am

they applied their firewall rules on the wrong interface and locked themselves out of the network[1] and the responses were hilarious. This
one made me cough up my coffee.
[1] I've done that.

Rite of passage. :-)
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