[Dxspider-support] Spider Client login - Port 23 revisited

Dale Harwood dale at harwood.com
Fri Feb 7 01:42:43 GMT 2003


I was testing my setup for this as Dirk replied with his resopnse. I use Listeners.pm

instead of client so was curious as to if it would work or not. I first 
changed my services file to point the default telnet connect to port 24. 
I then added port 23 to Listeners.pm and rebooted. It did work but did 
have some strange habits.
 From the local machine, telnet localhost gives a system login. A telnet 
localhost 23  gives a Spider login. From another linux machine on the 
network, telnet bbs gives an echoed (echos 2 characters per keystroke) 
login which the enter terminates with a ^M and sits there. The Spider 
console shows an incomming connect but times out. A telnet bbs 23 gives 
a Spider login which works as it should.
Try using the Listeners.pm method and see if it works for you. Looks 
like you will still have to specify port 23 because of the echo issue. 
As per the install manual, section 4.8 Telnet Echo, port 23 uses special 
rules that include echo negotiation.

HTH,


(I included the files that I changed to make this work)
-- 


  Dale Harwood   [ N4VFF ]

  internet> dale at harwood.com

  ax.25> n4vff at n4vff.#cha.tn.usa.noam

#include <std_disclaimer.h>




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#
# Copy this file to /spider/local and modify it to your requirements
#
#
# This file specifies which local interfaces and ports you will be
# listening on
#
# You can add as many as you like
#

package main;

use vars qw(@listen);

@listen = (
		   ["0.0.0.0", 8000],
		   ["0.0.0.0",23],
		  );
 
1;
-------------- next part --------------
# /etc/services:
# $Id: services,v 1.4 2000/01/23 21:03:36 notting Exp $
#
# Network services, Internet style
#
# Note that it is presently the policy of IANA to assign a single well-known
# port number for both TCP and UDP; hence, most entries here have two entries
# even if the protocol doesn't support UDP operations.
# Updated from RFC 1700, ``Assigned Numbers'' (October 1994).  Not all ports
# are included, only the more common ones.

tcpmux		1/tcp				# TCP port service multiplexer
echo		7/tcp
echo		7/udp
discard		9/tcp		sink null
discard		9/udp		sink null
systat		11/tcp		users
daytime		13/tcp
daytime		13/udp
netstat		15/tcp
qotd		17/tcp		quote
msp		18/tcp				# message send protocol
msp		18/udp				# message send protocol
chargen		19/tcp		ttytst source
chargen		19/udp		ttytst source
ftp-data	20/tcp
ftp		21/tcp
fsp		21/udp		fspd
ssh		22/tcp				# SSH Remote Login Protocol
ssh		22/udp				# SSH Remote Login Protocol
telnet		24/tcp
# 24 - private
smtp		25/tcp		mail
# 26 - unassigned
time		37/tcp		timserver
time		37/udp		timserver
rlp		39/udp		resource	# resource location
nameserver	42/tcp		name		# IEN 116
whois		43/tcp		nicname
re-mail-ck	50/tcp				# Remote Mail Checking Protocol
re-mail-ck	50/udp				# Remote Mail Checking Protocol
domain		53/tcp		nameserver	# name-domain server
domain		53/udp		nameserver
mtp		57/tcp				# deprecated
bootps		67/tcp				# BOOTP server
bootps		67/udp
bootpc		68/tcp				# BOOTP client
bootpc		68/udp
tftp		69/udp
gopher		70/tcp				# Internet Gopher
gopher		70/udp
rje		77/tcp		netrjs
finger		79/tcp
www		80/tcp		http		# WorldWideWeb HTTP
www		80/udp				# HyperText Transfer Protocol
link		87/tcp		ttylink
kerberos	88/tcp		kerberos5 krb5	# Kerberos v5
kerberos	88/udp		kerberos5 krb5	# Kerberos v5
supdup		95/tcp
# 100 - reserved
hostnames	101/tcp		hostname	# usually from sri-nic
iso-tsap	102/tcp		tsap		# part of ISODE.
csnet-ns	105/tcp		cso-ns		# also used by CSO name server
csnet-ns	105/udp		cso-ns
# unfortunately the poppassd (Eudora) uses a port which has already
# been assigned to a different service. We list the poppassd as an
# alias here. This should work for programs asking for this service.
# (due to a bug in inetd the 3com-tsmux line is disabled)
#3com-tsmux	106/tcp		poppassd
#3com-tsmux	106/udp		poppassd
rtelnet		107/tcp				# Remote Telnet
rtelnet		107/udp
pop2		109/tcp		pop-2	postoffice	# POP version 2
pop2		109/udp		pop-2
pop3		110/tcp		pop-3		# POP version 3
pop3		110/udp		pop-3
sunrpc		111/tcp		portmapper	# RPC 4.0 portmapper TCP
sunrpc		111/udp		portmapper	# RPC 4.0 portmapper UDP
auth		113/tcp		authentication tap ident
sftp		115/tcp
uucp-path	117/tcp
nntp		119/tcp		readnews untp	# USENET News Transfer Protocol
ntp		123/tcp
ntp		123/udp				# Network Time Protocol
netbios-ns	137/tcp				# NETBIOS Name Service
netbios-ns	137/udp
netbios-dgm	138/tcp				# NETBIOS Datagram Service
netbios-dgm	138/udp
netbios-ssn	139/tcp				# NETBIOS session service
netbios-ssn	139/udp
imap2		143/tcp		imap		# Interim Mail Access Proto v2
imap2		143/udp		imap
snmp		161/udp				# Simple Net Mgmt Proto
snmp-trap	162/udp		snmptrap	# Traps for SNMP
cmip-man	163/tcp				# ISO mgmt over IP (CMOT)
cmip-man	163/udp
cmip-agent	164/tcp
cmip-agent	164/udp
xdmcp		177/tcp				# X Display Mgr. Control Proto
xdmcp		177/udp
nextstep	178/tcp		NeXTStep NextStep	# NeXTStep window
nextstep	178/udp		NeXTStep NextStep	# server
bgp		179/tcp				# Border Gateway Proto.
bgp		179/udp
prospero	191/tcp				# Cliff Neuman's Prospero
prospero	191/udp
irc		194/tcp				# Internet Relay Chat
irc		194/udp
smux		199/tcp				# SNMP Unix Multiplexer
smux		199/udp
at-rtmp		201/tcp				# AppleTalk routing
at-rtmp		201/udp
at-nbp		202/tcp				# AppleTalk name binding
at-nbp		202/udp
at-echo		204/tcp				# AppleTalk echo
at-echo		204/udp
at-zis		206/tcp				# AppleTalk zone information
at-zis		206/udp
qmtp		209/tcp				# The Quick Mail Transfer Protocol
qmtp		209/udp				# The Quick Mail Transfer Protocol
z3950		210/tcp		wais		# NISO Z39.50 database
z3950		210/udp		wais
ipx		213/tcp				# IPX
ipx		213/udp
imap3		220/tcp				# Interactive Mail Access
imap3		220/udp				# Protocol v3
rpc2portmap	369/tcp
rpc2portmap	369/udp				# Coda portmapper
codaauth2	370/tcp
codaauth2	370/udp				# Coda authentication server
ulistserv	372/tcp				# UNIX Listserv
ulistserv	372/udp
ldap            389/tcp    			# Lightweight Directory Access Protocol
ldap            389/udp    			# Lightweight Directory Access Protocol
https		443/tcp				# MCom
https		443/udp				# MCom
snpp		444/tcp				# Simple Network Paging Protocol
snpp		444/udp				# Simple Network Paging Protocol
saft		487/tcp				# Simple Asynchronous File Transfer
saft		487/udp				# Simple Asynchronous File Transfer
npmp-local	610/tcp		dqs313_qmaster	# npmp-local / DQS
npmp-local	610/udp		dqs313_qmaster	# npmp-local / DQS
npmp-gui	611/tcp		dqs313_execd	# npmp-gui / DQS
npmp-gui	611/udp		dqs313_execd	# npmp-gui / DQS
hmmp-ind	612/tcp		dqs313_intercell# HMMP Indication / DQS
hmmp-ind	612/udp		dqs313_intercell# HMMP Indication / DQS
#
# UNIX specific services
#
exec		512/tcp
biff		512/udp		comsat
login		513/tcp
who		513/udp		whod
shell		514/tcp		cmd		# no passwords used
syslog		514/udp
printer		515/tcp		spooler		# line printer spooler
talk		517/udp
ntalk		518/udp
route		520/udp		router routed	# RIP
timed		525/udp		timeserver
tempo		526/tcp		newdate
courier		530/tcp		rpc
conference	531/tcp		chat
netnews		532/tcp		readnews
netwall		533/udp				# -for emergency broadcasts
uucp		540/tcp		uucpd		# uucp daemon
afpovertcp	548/tcp				# AFP over TCP
afpovertcp	548/udp				# AFP over TCP
remotefs	556/tcp		rfs_server rfs	# Brunhoff remote filesystem
klogin		543/tcp				# Kerberized `rlogin' (v5)
kshell		544/tcp		krcmd		# Kerberized `rsh' (v5)
kerberos-adm	749/tcp				# Kerberos `kadmin' (v5)
#
webster		765/tcp				# Network dictionary
webster		765/udp
swat		901/tcp				# Samba Web Administration Tool
#
# From ``Assigned Numbers'':
#
#> The Registered Ports are not controlled by the IANA and on most systems
#> can be used by ordinary user processes or programs executed by ordinary
#> users.
#
#> Ports are used in the TCP [45,106] to name the ends of logical
#> connections which carry long term conversations.  For the purpose of
#> providing services to unknown callers, a service contact port is
#> defined.  This list specifies the port used by the server process as its
#> contact port.  While the IANA can not control uses of these ports it
#> does register or list uses of these ports as a convienence to the
#> community.
#
ingreslock	1524/tcp
ingreslock	1524/udp
prospero-np	1525/tcp			# Prospero non-privileged
prospero-np	1525/udp
datametrics	1645/tcp	old-radius	# datametrics / old radius entry
datametrics	1645/udp	old-radius	# datametrics / old radius entry
sa-msg-port	1646/tcp	old-radacct	# sa-msg-port / old radacct entry
sa-msg-port	1646/udp	old-radacct	# sa-msg-port / old radacct entry
radius		1812/tcp			# Radius
radius		1812/udp			# Radius
radacct		1813/tcp			# Radius Accounting
radacct		1813/udp			# Radius Accounting
cvspserver	2401/tcp			# CVS client/server operations
cvspserver	2401/udp			# CVS client/server operations
venus		2430/tcp			# codacon port
venus		2430/udp			# Venus callback/wbc interface
venus-se	2431/tcp			# tcp side effects
venus-se	2431/udp			# udp sftp side effect
codasrv		2432/tcp			# not used
codasrv		2432/udp			# server port
codasrv-se	2433/tcp			# tcp side effects
codasrv-se	2433/udp			# udp sftp side effect
mysql		3306/tcp			# MySQL
mysql		3306/udp			# MySQL
rfe		5002/tcp			# Radio Free Ethernet
rfe		5002/udp			# Actually uses UDP only
cfengine	5308/tcp			# CFengine
cfengine	5308/udp			# CFengine
bbs		7000/tcp			# BBS service
#
#
# Kerberos (Project Athena/MIT) services
# Note that these are for Kerberos v4, and are unofficial.  Sites running
# v4 should uncomment these and comment out the v5 entries above.
#
kerberos4	750/udp		kerberos-iv kdc	# Kerberos (server) udp
kerberos4	750/tcp		kerberos-iv kdc	# Kerberos (server) tcp
kerberos_master	751/udp				# Kerberos authentication
kerberos_master	751/tcp				# Kerberos authentication
passwd_server	752/udp				# Kerberos passwd server
krb_prop	754/tcp				# Kerberos slave propagation
krbupdate	760/tcp		kreg		# Kerberos registration
kpasswd		761/tcp		kpwd		# Kerberos "passwd"
kpop		1109/tcp			# Pop with Kerberos
knetd		2053/tcp			# Kerberos de-multiplexor
zephyr-srv	2102/udp			# Zephyr server
zephyr-clt	2103/udp			# Zephyr serv-hm connection
zephyr-hm	2104/udp			# Zephyr hostmanager
eklogin		2105/tcp			# Kerberos encrypted rlogin
#
# Unofficial but necessary (for NetBSD) services
#
supfilesrv	871/tcp				# SUP server
supfiledbg	1127/tcp			# SUP debugging
#
# Datagram Delivery Protocol services
#
rtmp		1/ddp				# Routing Table Maintenance Protocol
nbp		2/ddp				# Name Binding Protocol
echo		4/ddp				# AppleTalk Echo Protocol
zip		6/ddp				# Zone Information Protocol
#
# Services added for the Debian GNU/Linux distribution
poppassd	106/tcp				# Eudora
poppassd	106/udp				# Eudora
mailq		174/tcp				# Mailer transport queue for Zmailer
mailq		174/udp				# Mailer transport queue for Zmailer
ssmtp		465/tcp				# SMTP over SSL
gdomap		538/tcp				# GNUstep distributed objects
gdomap		538/udp				# GNUstep distributed objects
snews		563/tcp				# NNTP over SSL
ssl-ldap	636/tcp				# LDAP over SSL
omirr		808/tcp		omirrd		# online mirror
omirr		808/udp		omirrd		# online mirror
rsync		873/tcp				# rsync
rsync		873/udp				# rsync
simap	 	993/tcp				# IMAP over SSL
spop3		995/tcp				# POP-3 over SSL
socks		1080/tcp			# socks proxy server
socks		1080/udp			# socks proxy server
rmtcfg		1236/tcp			# Gracilis Packeten remote config server
xtel		1313/tcp			# french minitel
support		1529/tcp			# GNATS
cfinger		2003/tcp			# GNU Finger
ninstall	2150/tcp			# ninstall service
ninstall	2150/udp			# ninstall service
afbackup	2988/tcp			# Afbackup system
afbackup	2988/udp			# Afbackup system
icp		3130/tcp			# Internet Cache Protocol (Squid)
icp		3130/udp			# Internet Cache Protocol (Squid)
postgres	5432/tcp			# POSTGRES
postgres	5432/udp			# POSTGRES
fax		4557/tcp			# FAX transmission service        (old)
hylafax		4559/tcp			# HylaFAX client-server protocol  (new)
noclog		5354/tcp			# noclogd with TCP (nocol)
noclog		5354/udp			# noclogd with UDP (nocol)
hostmon		5355/tcp			# hostmon uses TCP (nocol)
hostmon		5355/udp			# hostmon uses TCP (nocol)
ircd		6667/tcp			# Internet Relay Chat
ircd		6667/udp			# Internet Relay Chat
webcache	8080/tcp			# WWW caching service
webcache	8080/udp			# WWW caching service
tproxy		8081/tcp			# Transparent Proxy
tproxy		8081/udp			# Transparent Proxy
mandelspawn	9359/udp	mandelbrot	# network mandelbrot
amanda		10080/udp			# amanda backup services
kamanda		10081/tcp			# amanda backup services (Kerberos)
kamanda		10081/udp			# amanda backup services (Kerberos)
amandaidx	10082/tcp			# amanda backup services
amidxtape	10083/tcp			# amanda backup services
isdnlog		20011/tcp			# isdn logging system
isdnlog		20011/udp			# isdn logging system
vboxd		20012/tcp			# voice box system
vboxd		20012/udp			# voice box system
binkp		24554/tcp			# Binkley
binkp		24554/udp			# Binkley
asp		27374/tcp			# Address Search Protocol
asp		27374/udp			# Address Search Protocol
tfido		60177/tcp			# Ifmail
tfido		60177/udp			# Ifmail
fido		60179/tcp			# Ifmail
fido		60179/udp			# Ifmail

# Local services

linuxconf	98/tcp


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