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webtrip
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Joined: 07 Jun 2014
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Location: Netherlands
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 Posted: Sat Jun 07, 2014 1:13 pm Post subject: Howto install and configure Tightvnc server on SMS? |
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Hi all,
I am new to sms installed it as a server to replace my old windows server 2003.
I noticed that this sms works faster and better than the microsoft server i had before.
I have a problem to configure Tightvnc server and when i connect with tightvnc viewer from a windows 7 workstation. I keep getting the Error like "The connection is been rejected from the server you tried to connect" Anyone knows a link to a good tutorial to install and configure tightvnc server? Because i want to use the Remote function to control my server on other workstation Windows 7 Ultimate.
I am new to sms linux have some expirience with ubuntu and a old red hat.
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Richard Trip
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gerasimos_h
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| Posted: Sat Jun 07, 2014 8:20 pm Post subject: |
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Hello,
Just do a
and edit or add a new line with something like
VNCSERVERS="1:root"
| Code: | smsconfig vnc on
smsconfig vnc start
smsconfig vnc st |
You should see vnc running with latest command...
Now to connect depending on the client you need to pass the port as 5901.
If you use another port like 51, useful for not disturbing the current DISPLAY (1) you should pass port 5951.
Now to start it automatically at boot add in /etc/rc.d/rc.local
| Code: | if [ -x /etc/rc.d/rc.vncservers ]; then
/etc/rc.d/rc.vncservers start
fi
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gerasimos_h
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webtrip
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Location: Netherlands
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| Posted: Sun Jun 08, 2014 6:53 pm Post subject: Tightvnc running but connection keps being refused by server |
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I got the tightvnc up and running now. Thats great!
Thanks for your input. But one problem left to me now.
When i try to open a connection from my windows 7 workstation with the Tightvnc viewer for windows. I still recieve a error message.
Error in TightVNC Viewer: Cannot make a connection. Cause the destination computer has refused the connection.
I cannot find anywhere if the firewall on sms is standard on? Is this the case. How can I enter the right ports to open them in the firewall?
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Richard Trip
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gerasimos_h
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| Posted: Sun Jun 08, 2014 7:47 pm Post subject: |
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I forgot to tell you to run "vncpasswd" to set your password and restart vnc
SMS has no firewall by default, so your problem is probably the wrong port you enter on tightvnc viewer, or your windows firewall or a 3rd app firewall either on a antivirus or stand alone...
if you set 1 it's 5901, if you set 2 it's 5902 and so on...
Whats the output of
| Code: | | cat /etc/rc.d/rc.vncservers.conf |
gerasimos_h
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webtrip
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| Posted: Sun Jun 08, 2014 9:54 pm Post subject: reply with attachment |
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Here is a screenshot of the asked file.
Strange thing i just experienced is that I cannot make access over the network to my webmin anymore suddenly stopped working. But on the server itself I can open webmin without a problem. I Pulled out all of the firewalls and created a staight line peer to peer to server but without a sollution. it still doesnt work. So can it be still a infra problem? Infra now is peer to peer. Or is it co-incidence?
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Richard Trip
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webtrip
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| Posted: Sun Jun 08, 2014 9:59 pm Post subject: Windows firewall turned completly off |
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I didnt mentioned it yet but i turned my windows firewall off to be sure it was my first thought too that that one blokked the connection. Other strange thing is I cannot connect to my cups installed printer too. It isnt be found on the windows network and if configered manualy the printer doesnt respond at all.
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Richard Trip
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gerasimos_h
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| Posted: Sun Jun 08, 2014 10:30 pm Post subject: |
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First thing check if fail2ban have you banned over failed attempts with
| Code: | | tail -100 /var/log/fail2ban.log |
or simply restart fail2ban to clear rules with
| Code: | | /etc/rc.d/rc.fail2ban restart |
and check your connectivity to SMS again...
Your VNC port is 5901, so in tightvnc viewer enter
[your.IP]:1 or [your.IP]:5901
Also if you have another linux machine on network you can use nmap to check if port is open with
| Code: | | nmap [sms ip] -p 5901 |
running nmap from SMS you should see what services are running too
gerasimos_h
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webtrip
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| Posted: Mon Jun 09, 2014 10:57 am Post subject: log files fail2ban and vnclog |
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Here are my fail2ban and the vnc logs. Cannot make out why i still cannot connect?
I got the feeling the problem is small. But I just cant get to it? 
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vnc_log.txt |
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fail2banlog.txt |
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Richard Trip
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webtrip
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| Posted: Mon Jun 09, 2014 2:03 pm Post subject: closed ports |
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I installed Zenmap on my windows machine. And did nmap (sms ip) And seems the ports 5900/5901/5902 are closed on the server! See screenshot i made of testing my sms server with zenmap. Most ports are just simply closed!
How can i open those ports i need?
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gerasimos_h
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| Posted: Mon Jun 09, 2014 2:40 pm Post subject: |
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I'm trying to reproduce your error, but I can't...
can you post the output of
| Code: | smsconfig sys
smsconfig vnc st
nestat -ap|grep 5901
nmap 127.0.0.1 |
I tried two virtual machines with vanilla installation of SMS64 and had no problem running the vnc server and connecting with tightvnc viewer from windows...
procedure to setup is
1. type "vncpasswd" to set your password.
2. "smsconfig vnc cf" to add users
3. "smsconfig vnc start" to start vnc server
gerasimos_h
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webtrip
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| Posted: Mon Jun 09, 2014 4:26 pm Post subject: |
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Here the outcome of the requested commands. Weird that nmap command on the sms server shows the 5901 port is open! When i use my nmap on windows workstation sms 5901 is closed!! ???? I dont have any firewalls between the workstation and the server left. This is getting pretty weird. I tried to reinstall sms but same issue again
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Richard Trip
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webtrip
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| Posted: Mon Jun 09, 2014 7:08 pm Post subject: |
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I got it running shortly after changing [user 10:root] >> was [user 1:root]
then i did [chmod -+ /etc/rc.d/rc.vncservers] and after that i setup the password once again with [vncpasswd]. Then I started [/etc/rc.d/vncservers start]
Why i dont know but then it worked. I could remotly connect on over windows. I was pretty happy. Till I shutdown the server to install it on its own place without monitor. Then i booted it and dont get vnc server working anymore????
I see when i check [smsconfig vnc st] that the service is now running!!
When I check [nmap 127.0.0.1] that port 5901 is NOT in use!!!!
When I check [netstat -ap|grep 5901] 5901 is closed.
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Richard Trip
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webtrip
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| Posted: Mon Jun 09, 2014 7:17 pm Post subject: GOT IT!!!!!! |
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I know what the problem was!!!!!!
I changed the port no to 5810 with [user 10:root]
It gave an error with starting therefore because 5801 was in use by another http service or something like that. Thats why i changed it. After reboot I still need to manaly boot vnc server.That can be done over webmin session. So it runs now.
Thanks for the support!!! Now finaly i can start building my server like I want 
This server really works stable and fast I'm impressed!!
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Richard Trip
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gerasimos_h
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| Posted: Mon Jun 09, 2014 7:40 pm Post subject: |
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To start it automatically at boot add in /etc/rc.d/rc.local
| Code: | if [ -x /etc/rc.d/rc.vncservers ]; then
/etc/rc.d/rc.vncservers start
fi |
port 58xx is for http vnc server, tightvnc server run on both http 58xx and tcp 59xx ports.
gerasimos_h
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