namaste!

im a newbie in this networking area, and i sure am having my fill of problems...
well, i have two computers cross connected to form a LAN. iv got just one monitor, so *im trying to bring up the other PC`s terminal on this computer.*
the problem is that i can ping one from the other, but i cant do anything worthwhile...


one is running redhat 8.0 and the other 9.0.
the ip of the machine runnig the vnc server is 192.168.1.4 (it has no monitor)
the ip of this machine is 192.168.1.2 (has a monitor)
i tried to use "VNC for linux". i ran the vncserver on the machine which does not have a monitor .then i ran the command "vncviewer 192.168.1.4" on the other computer, but i got an error like "could not connect :bind: connection refused"

i tried "telnet 192.168.1.4"..i got the error "connection refused".

i tried "rsh" and "rlogin", and nothing happens..
where am i going wrong, and what is to be done? if u have some links where i can learn more about all this, kindly share them with me...

plz remember, *im tryting to manage two pcs with the same monitor, so id like something like vnc that brings up a grab of the other computer`s terminal*

PS. this vnc was working fine with a linux-windows combination!

thanx in advance!

PPS..having a torrid time twiddling the only monitor b\w the two pcs, so kindly help fast !

When connecting using vnc make sure you are using the display number this should have been given to you when you started the server - eg for display 1:
vncviewer 192.168.1.4:1

The reason you may not be able to conncet to the system via telnet is that telnet is now no longer installed by default - you need to use ssh instead (it is much more secure) - make sure the server is started:
service sshd restart

For all your problems you should also make sure you have no firewall rules in place:
iptables -L

If you are still having problems then post the output of hte iptables command and:
netstat -nlp

nothing worked.... i had been using the correct display id all along..

hers the o/p out the iptables -L and the netstat -nlp commands



[root@mayank root]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination


[root@mayank root]# netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 2213/smbd
tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 1700/X
tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN 1647/perl
tcp 0 0 0.0.0.0:723 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 2553/sshd
tcp 0 0 0.0.0.0:7741 0.0.0.0:* LISTEN 1608/lisa
udp 0 0 192.168.1.2:137 0.0.0.0:* 2217/nmbd
udp 0 0 0.0.0.0:137 0.0.0.0:* 2217/nmbd
udp 0 0 192.168.1.2:138 0.0.0.0:* 2217/nmbd
udp 0 0 0.0.0.0:138 0.0.0.0:* 2217/nmbd
udp 0 0 0.0.0.0:10000 0.0.0.0:* 1647/perl
udp 0 0 0.0.0.0:7741 0.0.0.0:* 1608/lisa
raw 121760 0 0.0.0.0:1 0.0.0.0:* 7 1608/lisa
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node PID/Program name Path
unix 2 [ ACC ] STREAM LISTENING 1749 1558/gpm /dev/gpmctl
unix 2 [ ACC ] STREAM LISTENING 2529 1811/kdeinit: Runni /tmp/ksocket-root/kdeinit-:0
unix 2 [ ACC ] STREAM LISTENING 2048 1767/ssh-agent /tmp/ssh-XXlPI44T/agent.1709
unix 2 [ ACC ] STREAM LISTENING 2533 1814/kdeinit: dcops /tmp/.ICE-unix/dcop1814-1066569624
unix 2 [ ACC ] STREAM LISTENING 2684 1843/kdeinit: ksmse /tmp/.ICE-unix/1843
unix 2 [ ACC ] STREAM LISTENING 1787 1599/ /tmp/.font-unix/fs7100
unix 2 [ ACC ] STREAM LISTENING 2654 1829/artsd /tmp/mcop-root/mayank_home-0725-3f928fa0
unix 2 [ ACC ] STREAM LISTENING 2556 1817/kdeinit: klaun /tmp/ksocket-root/klauncherU0Yzyb.slave-socket
unix 2 [ ACC ] STREAM LISTENING 1958 1656/ /tmp/.gdm_socket
unix 2 [ ACC ] STREAM LISTENING 1968 1700/X /tmp/.X11-unix/X0
Active IPX sockets
Proto Recv-Q Send-Q Local Address Foreign Address State



what do i do next



thanx in advance

Well there is no vnc server running by the looks of it - see what you get from:
ps -ef | grep Xvnc

ssh is running - can you connect to it:
ssh 192.168.1.2

thanx for your time, dave..but i forgot to mention a few things

the iptables and netstat dumps are from the node 192.168.1.2, which is where im going to run the vncviewer from..

192.168.1.4, thats the one where the Xvnc server runs....hope yew arent mad at me

the o/p of the above commands was almost exactly the same as above....

"ssh 192.168.1.2" from the other node(192.168.1.4) says something like "connect at port 22:connection failed"
doesnt work





what next?

No I'm not mad

Can you post the iptables and netstat commands from the machine with the vnc server on it. Just to see if the services are running etc.

RedHat 8+9 have a deafault configuration tool for firewalls. If you type lokkit in console, it opens the configuration tool. Select no firewall to test. Once you establish that it does indeed work, you can user lokkit to allow ports 6001 and (I think) 5401 for your Xvnc.

The shadow knows...

I forgot this too: you have to use lokkit to enable ssh too.

okay dave..and whoever else reads this..i ran the following commands in succession on the node 192.168.1.4, the one without the monitor.the only other node on the network is 192.168.1.2...


ot@compaq root]# ssh 192.168.1.2
ssh: connect to address 192.168.1.2 port 22: Connection refused
------------------------------------
[root@compaq root]# vncserver

New 'X' desktop is compaq.home:1

Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/compaq.home:1.log
-------------------------------------------
[root@compaq root]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
----------------------------------------------
[root@compaq root]# netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:1024 0.0.0.0:* LISTEN 536/xinetd
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 583/smbd
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 482/
tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 693/X
tcp 0 0 0.0.0.0:723 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 522/sshd
udp 0 0 192.168.1.4:137 0.0.0.0:* 587/nmbd
udp 0 0 0.0.0.0:137 0.0.0.0:* 587/nmbd
udp 0 0 192.168.1.4:138 0.0.0.0:* 587/nmbd
udp 0 0 0.0.0.0:138 0.0.0.0:* 587/nmbd
udp 0 0 0.0.0.0:111 0.0.0.0:* 482/
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node PID/Program name Path
unix 2 [ ACC ] STREAM LISTENING 1200 693/X /tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 1228 719/ssh-agent /tmp/ssh-XX2Itcsk/agent.70
1
unix 2 [ ACC ] STREAM LISTENING 1037 574/ /tmp/.font-unix/fs7100
-----------------------------------------------------------------------------------
[root@compaq root]# ps -ex|grep Xvnc
814 pts/0 S 0:00 grep Xvnc SSH_AGENT_PID=719 HOSTNAME=compaq.home SHEL

-------------------------------------------------------------------------------


whenever i run "lokkit", the security setting is "high"..i changed it
to no-firewall, and even used the custom setting to enable orts, but when i choose "ok" and quit,and type "lokkit" again, i see nothing has changed! iv even tried a reboot....listening , Guru?

thanx in advance...

Ok, maybe "no firewall" isn't the best way to go. In lokkit, set security level to high. Then go into customize, make sure that DHCP and SSH are enabled. Don't worry if it's blank when you get there, just make sure when you quit lokkit that security level is high, and that in customize DHCP and SSH have little stars by them. In other ports enable poer 5900 and 6000 like this "5900:tcp 5901:tcp 6000:tcp 6001:tcp". I think that will work. Also is the one with no monitor running RH8 or 9?

running redhat 8

The lokkit stuff I just posted should work under RH8.

nope..that didnt work either...cant seem to get thru to any server from the other machine..."connection refused" with both vnc and ssh
:-(

OK, stupid question now, are these static IP or DHCP machines. Run ifconfig on each, make sure they have IP addresses... On the no monitor computer, try sshing to 127.0.0.1 (the loopback device) and see if that works. If it doesn't then SSH isn't running....

both static ips.....i thnk were reaching a dead end
:-((