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Old 01-29-2013, 10:27 AM   #1
Latman
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Registered: Jun 2012
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Sybase connection from Windows


Our DBA's have installed Sybase on to redhat 5.8 and would like to connect to it using ISQL/w.
I have disabled the firewall since it is only an internal server but they still cannot connect.
I also cannot telnet to this port from a PC.

I get the foolowing shown:
/]# nmap -sS -O 127.0.0.1

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-01-29 16:00 GMT
Interesting ports on localhost.localdomain (127.0.0.1):
Not shown: 1672 closed ports
PORT STATE SERVICE
22/tcp open ssh
23/tcp open telnet
25/tcp open smtp
111/tcp open rpcbind
631/tcp open ipp
971/tcp open unknown
5800/tcp open vnc-http
5801/tcp open vnc-http-1


Is there anything else I can do?
 
Old 01-29-2013, 02:51 PM   #2
Habitual
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Location: Youngstown, Ohio
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Check http://infocenter.sybase.com/help/to...018594631.html for an extensive list of ports Sybase seems to use.

an nmap in "default" mode (nmap -sS -O 127.0.0.1) may not be sufficient.

Which port is referenced when you said "I also cannot telnet to this port from a PC."

telnet localhost <port> from the sybase host should work.

I'd try
Code:
netstat -an
or
Code:
netstat -plaunt | grep base
on the sybase host and look for the sybase port (this assumes the service/daemon is started...) then
Code:
nmap -sS -O 127.0.0.1 -p 1024-2048
with an additional
Code:
nmap -sS -O 127.0.0.1 -p 2049-4096
The goal here is to find a range of IPs and nmap those. Or just use "the port" you mentioned and skip the whole nmap'ing a range, but use nmap -sS -O 127.0.0.1 -p <port_you_mentioned>

If the sybase port is running and they still cannot connect, they should try
Code:
ping <server_name>
or
Code:
ping <IP>
to verify "They" can 'see' the server from client PCs.

Are they behind a corporate firewall, or other another device that may be "in the way"? (Not a firewall as you mentioned)

Please let us know...

Last edited by Habitual; 01-29-2013 at 02:53 PM.
 
Old 01-29-2013, 08:03 PM   #3
chrism01
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Location: Sydney
Distribution: Centos 6.8, Centos 5.10
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127.0.0.1 is (as it says) the localhost aka loopback addr.
You need to look at the network addr (eg as used by eth0).
 
  


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