Subj : DoorParty failing??
To   : All
From : paulie420
Date : Fri Jul 01 2022 10:09 am

Hey, r0ckstars. So I moved 2o to a new x86 server from my Raspberry Pi. Everything about the system, hostname, directory structure, where everything gets mounted and lives - is the exact same.

I have a /mystic/doorparty directory that holds a 20_DP.sh script to 'boot' DoorParty and a /mystic/doorparty/dpc2 directory that holds doorparty-connector; the listener for DoorParty. I had to re-compile that tool because the old one was ARM and this system is x86. 

I have a doorparty-connector.service file thats loaded into systemd. Heres the status:

doorparty-connector.service - DoorParty Connector
     Loaded: loaded (/etc/systemd/system/doorparty-connector.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2022-06-28 09:51:50 PDT; 3 days ago
   Main PID: 428 (doorparty-conne)
      Tasks: 7 (limit: 9508)
     Memory: 20.9M
        CPU: 912ms
     CGroup: /system.slice/doorparty-connector.service
             юд428 /home/xxx/mystic/doorparty/dpc2/doorparty-connector

Jul 01 09:43:46 bbs doorparty-connector[428]: 2022/07/01 09:43:46 [20] connecting to RLogin server dp.throwbackbbs.com:513 via SSH tunnel
Jul 01 09:43:46 bbs doorparty-connector[428]: 2022/07/01 09:43:46 [20] starting RLogin session, terminal type:
Jul 01 09:43:46 bbs doorparty-connector[428]: 2022/07/01 09:43:46 [20] connected to RLogin server dp.throwbackbbs.com:513 via SSH tunnel
Jul 01 09:43:46 bbs doorparty-connector[428]: 2022/07/01 09:43:46 [20] disconnected
Jul 01 09:57:02 bbs doorparty-connector[428]: 2022/07/01 09:57:02 Accepted connection
Jul 01 09:57:03 bbs doorparty-connector[428]: 2022/07/01 09:57:03 [20] connected to SSH server dp.throwbackbbs.com:2022
Jul 01 09:57:03 bbs doorparty-connector[428]: 2022/07/01 09:57:03 [20] connecting to RLogin server dp.throwbackbbs.com:513 via SSH tunnel
Jul 01 09:57:03 bbs doorparty-connector[428]: 2022/07/01 09:57:03 [20] starting RLogin session, terminal type:
Jul 01 09:57:03 bbs doorparty-connector[428]: 2022/07/01 09:57:03 [20] connected to RLogin server dp.throwbackbbs.com:513 via SSH tunnel
Jul 01 09:57:03 bbs doorparty-connector[428]: 2022/07/01 09:57:03 [20] disconnected

However, when I try to run DoorParty, or even any DP door game by itself, my users are seeing this error and no DoorParty:

kex_exchange_identification: banner line contains invalid characters
banner exchange: Connection to 127.0.0.1 port 9999: invalid format

??? I first thought this was an SSH issue - because my SSH connections weren't working - but I've since fixed the SSH/Cryptlib error, erased ssl.cert and SSH connections are now working on 2o... but the DoorParty kex_exchange_identification issue is still there.

The 20_DP.sh script is:
#!/bin/bash

prefix="[20]"
user=${1//_/ }

if [ $# -eq 2 ]; then
       TERM=$2 rlogin -p 9999 -l "$prefix$user" localhost

else
       rlogin -p 9999 -l "$prefix$user" localhost

fi

I thought the user=${1//_/ } line looked wonky, but even if I enter:
rlogin -p 9999 -l "[20]paulie420" localhost

I get the same kex error... where am I missing something? the DP.service is listening on port 9999... this worked perfectly on my old system - but I'm forgetting something or not setting something up thats needed. Any ideas? Thanks for making it to the end with me. UGH. :P

I did one more thing... manually ran the rlogin command thats in 20_DP.sh with a -vv to get the output of WHY theres a kex_exchange issue. I think the details are here... remember, I copied the bbs files from my old machine and ... I'm just not informed enough to read this output... what on my new system am I gonna have to change!! :P:

xxx@bbs:~/mystic/doorparty$ rlogin -p 9999 -vv localhost
OpenSSH_8.4p1 Debian-5, OpenSSL 1.1.1n  15 Mar 2022
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug2: resolving "localhost" port 9999
debug2: ssh_connect_direct
debug1: Connecting to localhost [::1] port 9999.
debug1: connect to address ::1 port 9999: Connection refused
debug1: Connecting to localhost [127.0.0.1] port 9999.
debug1: Connection established.
debug1: identity file /home/pi/.ssh/id_rsa type 0
debug1: identity file /home/pi/.ssh/id_rsa-cert type -1
debug1: identity file /home/pi/.ssh/id_dsa type -1
debug1: identity file /home/pi/.ssh/id_dsa-cert type -1
debug1: identity file /home/pi/.ssh/id_ecdsa type -1
debug1: identity file /home/pi/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/pi/.ssh/id_ecdsa_sk type -1
debug1: identity file /home/pi/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /home/pi/.ssh/id_ed25519 type -1
debug1: identity file /home/pi/.ssh/id_ed25519-cert type -1
debug1: identity file /home/pi/.ssh/id_ed25519_sk type -1
debug1: identity file /home/pi/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /home/pi/.ssh/id_xmss type -1
debug1: identity file /home/pi/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Debian-5
kex_exchange_identification: banner line contains invalid characters
banner exchange: Connection to 127.0.0.1 port 9999: invalid format

|07p|15AULIE|1142|07o
|08.........

--- Mystic BBS v1.12 A48 2022/04/26 (Linux/64)
 * Origin: 2o fOr beeRS bbs>>>20ForBeers.com:1337 (21:2/150)

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