Hallo Tommi! 21.08.2019 20:01, Tommi Koivula schrieb an Torsten Bamberg: >> Currently my vmodem and telnet ports are down, but usually I have 8 >> telnet ports running, with one instance of vmodem(2k). TK> 8 different TCP ports? I meant telnet-sessions simultanously. Of course only port 23 is attached. TK> My Vmodem of SIO 1.60 has 16 "ports", but listening only one TCP port. I'm using sio2k. sio2k supports 256 'sessions', witch can be telnet, com- ports or com emulated capi-devices. I've got one big problem with sio2k, I can't register it any more. TK> Which is 23 BTW. And that port is not exposed to the internet, my TK> router forwards external port 32 to port 23 at OS/2 computer. Ahm, i've got a special security configuration, not only because of the 'unclosed session bug' from sio2k cable -->-- cable-router -->-- Router 1 Firewall 1 dsl -->-- dsl-modem -->-- BSD-Router -->-- BSDFirewall | | |--->--- DMZ | | | |--->--- LAN | -> Firewall 2 | with fail2ban BSD | RexxLogScripting ^ | | Telnet on -- Mailbox 01 Security by obscurity. ;-) >> But there is one big bug with vmodem; if the clientsession isn't >> closed properly, vmodem hangs up the whole computer without a trap. TK> Oh? Jap. If more than 256 connections are opend, and not properly closed, sio2k does hang up the system. TK> 'Tommi Bye/2 Torsten ... MAILBOX01 on OS2: up 1d 18h 29m load: 35 proc, 129 threads (tbupv1.1) --- GoldED+ 1.1.5-19 * Origin: DatenBahn BBS Hamburg (2:240/5832)
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