Unable to access the server from Desktop

[Virumandi]

Hi .,

We are facing a peculiar problem.,

we are having 10 servers and we can able to access all the servers from one other using telnet & ssh.

But when we access the servers from our desktop using telnet & putty all the servers are working except one..

We cant able to access the server from any of our desktop. But routing table is fine & ok in the server.


Anybody help me to came out of this issuee..

Regards
Suseendran .A

[Christian Tremblay · Accepted solution]

On the target server type:
xhost +
This should allow dtlogin without restrictions.

If it works, check the xhost man page to setup a more restrictive login.

[Virumandi]

We dont want to access the Graphical Interface.We want to access the server(10.210.7.212) from Windows machine using telnet or putty..

But all the other servers(10.210.7.xx) are logged in But the one particlar server(10.210.7.212) is not accessable from the windows.

Now we are logging in to one of the other servers(10.210.7.210) and from there ., we are accessing this particular server (10.210.7.212)


SCENERIO:
C:\>
C:\>telnet 10.210.7.212
Connecting To 10.210.7.212...Could not open connection to the host, on port 23:
Connect failed
C:\>

BUT WHEN WE TRY:--

SunOS 5.9
login: root
Password:
Last login: Thu Oct 26 19:32:09 from nitdbsun06
Sun Microsystems Inc. SunOS 5.9 Generic May 2002
[root@nibappsun07 /]$ telnet 10.210.7.212
Trying 10.210.7.212...
Connected to 10.210.7.212.
Escape character is '^]'.
login: root
Password:
Last login: Thu Oct 26 19:43:20 from 10.210.7.210
Sun Microsystems Inc. SunOS 5.10 Generic January 2005
[root@nitdbsun06 /]$
[root@nitdbsun06 /]$


Help me to came out of this issue...
It's Very urgent...


Thanks ..

[Christian Tremblay]

- Can you ping the server from the windoze box ?

- Is there anything in the server's log ?

# grep -i telnet /var/adm/syslog/syslog.log

- you can try to activate a log on the windoze box by using the -f filename switch to the telnet command and check for errors in there

[spex]

Hi,

Check out 'man 4 inetd.sec'.

PCS

[Virumandi]

I cant able to ping to the server 10.210.7.212 from my windows.

But the routing table on the server is fine.

One more Info:

We starts facing this problem while we are trying to install the Oracle Cluster software.

Whether will it impact, anything..

Expecting reply...

[Christian Tremblay]

If you cannot ping the server, you must have a network problem,

Can you ftp or ssh to it ?

run a tracert from the windoze box.

If you cannot reach the server with ping or tracert (windoze version of traceroute)how can you telnet to it ?

You have to make sure that you have network connectivity between the source and target machine for any protocol to work.

[Virumandi]

That was the issue ., I am telling from beginning.We cant able to access the server...

But as per the network team ., the serverv port is not blocked..There is some issue in the server end....


I can able to acces the server from my server netwrok( 10.210.7.xx) ... But when I try to access the server from my windows network (10.210.66.xx) That particular server was not accessable..

I can able to access all other servers from my windows network.So we cant say there is routing issue.

Similarly from my other servers I can able to access this particular server ( 10.210.7.212).So there is no port blocked.


The issue in my view is some configuration is missing on the server (10.210.7.212) and hence it is not accessable in my windows n/w.


Anyway.. Thanks for the Help.

I am still in the middle of the issue...Expecting some way to came out..

regards
Suseendran .A

[Christian Tremblay]

Running a tracert from the windows box will tell you how far you get on the network and at what IP addr you get "stuck" on your way to the server (maybe a router).

If you can "hop" all the way from source to destination then the problem is something else.

Don't take the network guys word for it ;-)
test it.

[Roland Piette]

Hello,

If you have a personal Firewall on our Windows, check all the rules. Check also your netmask address. You must first resolve the ping capability !

Roland

[Petr Simik_1]

Try it otherway ping from server to NT workstation? If this works than problem is definitelly in Windows setting.

[Virumandi]

Hi.,

The issue got resolved.,
The gateway was missing ., but from the netstat -rn command ., we didnt get any different.

After setting the gateway manually.,

We are able to access the server from the windows machine.


Thx to all