OpenSUSE Network :: Open Port On Localhost But Not Remotely

Apr 15, 2010

I have a problem with one of my new OpenSuse installation. I install ntop on this machine so the port 3000 become open, but when i want to use it on a other pc, it cannot see the open port. I really don't understand why i cannot access this port.

I disabled firewall to make sure everything pass.

Here my ntop on my localhost

Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds

Here my ntop from another host

Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds

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OpenSUSE Network :: FreeNX Windows Error - Can't Open Display - Localhost:10.0

Jun 25, 2010

FreeNX server is SUSE 11.2 /(i586)

Cliente is windows 7 (64)

NX> 148 Server capacity: not reached for user: usb

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General :: Localhost Port 25 Not Open ?

Nov 6, 2010

Made some network and hardware changes, and now I can't get the mailserver to work. It seems that sendmail can't loop to itself on 127.0.0.1. When I nmap localhost, I find that port 25 isn't open.

Naturally, nothing has changed on my system except for different routing, interfaces, etc.

So the question for sendmail gurus,is where should I be looking?

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Software :: Vps Running Every Minute That Checks To See Whether Or Not A Certain Port Is Open On Localhost?

Oct 30, 2010

I have a crontab on my vps running every minute that checks to see whether or not a certain port is open on localhost. If the port isn't open, it should run the php script to restart the program. However, I require the use of screen to be able to interact with the program whenever I reconnect to the vps through shell.The problem is, screen is being a pain by saying "Must be connected to a terminal."This is the php script:

Code:
#!/usr/bin/php -q
<?php

[code]....

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OpenSUSE Network :: How To Open Port 8100

Nov 16, 2010

How do I open port 8100? I am able to telnet localhost 8100 I can connect; but when I go to a client and telnet server_ip 8100 I get Connection refused. I can connect telnet server_ip 3306.

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OpenSUSE Network :: Properly Open Port Through Firewall?

Sep 27, 2010

I have properly configured my router to open a port for Transmission and Vuze. The OpenSuSE firewall settings are somewhat confusing, however. How do I add a port specifically for the BT protocol? I know it's the firewall causing issues, because when I shut it down, my BT apps roar to life, and die with a whimper when I turn it back on. In Ubuntu, opening a port in the router is automatically configured in the firewall; that is apparently not the case with this distro.

So, when I go to Yast Firewall, I see "allowed services" under the tabs available. When I hit that tab, I see a dropdown menu that contains services such as NetBios Server and Samba Server. Am I choosing one of those available and adding a port to it? Am I adding a custom service via the Advanced settings, and if so, why isn't there a way to label the service so that it shows up under allowed services?

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OpenSUSE :: SSH / X11 On 11.3 - Error: Can't Open Display: Localhost:10.0

Sep 25, 2010

I was trying to remotely log in to my desktop which uses 11.3 from my laptop via ssh. For some reason I get an empty field for the command echo $DISPLAY. and as a result an xclock command results in error: can't open display. I tried to set it to localhost:10.0 and I get: Error: Can't open display: localhost:10.0

I've tried :0.0 and I get: Invalid MIT-MAGIC-COOKIE-1 keyError: Can't open display: :0.0 ssh used to work about a week ago before I performed various security updates. I was wondering what' the solution to this. I checked the /etc/ssh/sshd_config file and ssh_config file both have X11 forwarding on. Can anyone with more experience out there give me any ideas?

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OpenSUSE Network :: Port Redirection - Multiple IP Addresses - Or Run On Port 80

Apr 7, 2011

In SuSE firewall0. I do have a openSuse 11.4 and multiple IP addresses on eth0 interface

I run (trying to/have to) multiple TOMCAT servers.

I am trying to have each tomcat instance listen to on separate IP address for example:

What i am trying to do is to redirect

a) tomcat 1 -

a) tomcat 2 -

And so on.

I know that it has to be possible.

I do have just eth0/

Is is it possible. Do I have to create "vittual interfaces"? eth0:1, .......... and do redirection ?

"Server" has got just single interface - just 1 ethernet calbe goes to that server. I am planning to have 10-15 tomcat's on that server (I have to unfortunatley) and each has to run on port 80

Is it possible to "grant" permissions to normal users to run app on port 80 - that would solve me lots of problems if impossible to redirect.

I tried to setcap 'cap_net_bind_service=+ep' /path/to/tomcat ...... but no luck

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Networking :: How To Open A Port - Failed To Open The TCP Port Number In The License

Jun 20, 2009

I am running lmgrd on CentOS5, but it returns Failed to open the TCP port number in the license. The port is 27000, how can I open that port?

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OpenSUSE Network :: Keep The Server Awake Remotely?

May 23, 2010

Small home network consisting of a media server(headless, no monitor/keyboard/mouse)running OpenSuse 11.0, and 3 Windows clients running Vista. I don't need the server running 24/7 so I have it set to Suspend to Ram after 60 minutes, which works great. I have a WOL program on each client which works perfectly to wake up the server.

However, there are times when the server "sleeps" while I'm still using it. I can be downloading to the server, playing music, or whatever-doesn't really matter-and when the 60 minutes is up, it sleeps. What I need is some solution that will keep the server awake if I'm actually using it but let it sleep after the specified period of inactivity. My first thought was using Ethtool to wake it network activity directed at the server, but I've tried all the ethtool options and can't make it work right. Either it wakes on any network activity whatsoever, (which means it never sleeps) or doesn't wake at all.

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OpenSUSE Network :: IPv4 Entry For Localhost Missing In 11.4?

Jun 28, 2011

I had some fun here, with my local Cyrus IMAP daemon. I "updated" the machine to openSuse11.4 (from 11.2) by doing a fresh install. Because some of my involved HW here isn't capable of IPv6, I switched it off using yast2:
Netzwerkger├Ąte/Netzwerkeinstellungen [my translation: Network devices / Network Settings] Globale Optionen [global options] Removed the mark on "IPv6 aktivieren" [activate IPv6]

Then I had a hard fight with Cyrus IMAPd, mostly caused by user brain damage on my part... But one thing really looks like a problem on the Suse side of the fence: My /etc/hosts missed the "localhost"-entry for IPv4 ! This was the contents:

Code:
# special IPv6 addresses
::1 localhost ipv6-localhost ipv6-loopback
127.0.0.2 godot.site godot

[Code].....

I haven't seen this effect on 11.2 here and I haven't seen it on "my other" machine (running 64 bit version of Suse 11.4). But there I think IPv6 is still activated. I will check this, as soon as I get there.

Should this be reported as a potential bug in 11.4 ? Or is there some way, I could have messed up this. (No I didn't edit /etc/hosts by hand, before I corrected this thing)

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OpenSUSE Network :: Instance Attempting To Write A File From The Localhost?

Jan 17, 2010

This is a follow-on to "samba write failure crashes linux". It has the dmesg output when the write failure occurs.The remote server is os/2 v4.50 fp3.The failure occurred in this instance attempting to write a file from the localhost to a samba-mounted resource on a remote host. The failure always happens when at least 3 MB have been transferred. Smaller files are not a problem.

Other cases:
1. Saving any email (thunderbird) attachments to the localhost,
2. Downloading anything to the localhost using Firefox.

The most notable aspect are the phrases "kernel BUG" and "invalid opcode".

[Code]...

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OpenSUSE Network :: Proftpd Localhost Connection Doesn't Work

Feb 25, 2011

I got everything working except any localhost connections from within the server. I've tried to connect using localhost, 127.0.0.1, and dedicated IP from within the server and several CMS sites I have moved over to the server and all the local host connections fail.

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OpenSUSE Network :: Slow Application Startup Localhost Error

Feb 27, 2011

I recently installed OpenSUSE 11.3 amd64 from DVD on a new HP 625 Laptop. Whenever networking is activated, application startup slows down significantly. When I deactivate networking in the nm-applet application startup is fine. I am using the broadcom-wl package from packman for the broadcom wireless card (BCM4313)

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OpenSUSE Network :: Error As "This Address Uses A Network Port Which Is Normally Used For Purposes Other Than Web Browsing

Jul 27, 2011

I am facing two issues with CUPS - 1. I have installed cups 1.3.9 over OpenSuse11 x86. Please check below -

cups:/usr/share/cups/banners # cups-config --version
1.3.9
cups:/usr/share/cups/banners # cat /proc/version
Linux version 2.6.27.7-9-pae (geeko@buildhost) (gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) ) #1 SMP 2008-12-04 18:10:04 +0100

I have added few printers over there and everything is working fine. I can also able to add - delete - modify any printers from "yast2 printer" command. I can also able to browse cups web interface via http://cups:631, but when I am going to manage the printers (start - stop - delete etc), none of the buttons are working in firefox5 not even in IE also. Older version of firefox is giving error as "This address uses a network port which is normally used for purposes other than Web browsing. Firefox has canceled the request for your protection." All other buttons are working properly.

2. LINUX - LINUX Printing - OK
LINUX - WINDOWS Printing - OK
WINDOWS - LINUX Printing - NOT OK

While giving printing from Windows machine (Printer attached on Linux), there is no problem to coonect the printers, but unable to print.

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OpenSUSE Network :: Weirdness With WordPress On Localhost - An Unexpected HTTP Error Occurred During The API Request

Nov 25, 2010

I installed WordPress 3.x on my localhost/Apache server, but I can neither install plugins nor update anything.This happens with both the stable WP3.0 version and the 3.1 beta. When I try to search the Plugin Directory from the WP dashboard, I get this message: An Unexpected HTTP Error occurred during the API request.When I run an update, I get a page asking for the login credentials for the ftp user ("To perform the requested action, WordPress needs to access your web server. Please enter your FTP credentials to proceed. If you do not remember your credentials, you should contact your web host."). Since I'm part of the 'ftp' group on the system, I enter my system login information, click Proceed -- and get a blank page that does nothing.

I've gone to YaST, and I see that the system ftp user has a 6-character password (which may or may not be mine). I'm afraid to change it and risk screwing up other ftp-related functions. I'm running openSUSE 11.3, and am obsessive about updating. I will note that I have an old 2WIRE router that often requires me (including Zypper repos) to enter IP addresses instead of DNS-based URLs to successfully download stuff. Not sure if this is related, but just in case...

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OpenSUSE Network :: ERROR 1044 (42000): Access Denied For User ''@'localhost' To Database 'mysql'

Nov 9, 2010

I think I screwed up my Administrative username in mysql.

mysql -u root mysql
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'

Can I just copy all the files in /var/lib/mysql >>reinstall MySQL >> copy all the old folders into the new /var/lib/mysql ( while MySql is off)

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Fedora Servers :: Localhost Ties Up Port 80

Jul 25, 2009

I have an installation of Fedora 10 that has been running wonderfully for months, ever since I bombed my 9 installation trying to install Apache Tomcat (I really just wanted Apache, live and learn). I finally decided to brave the attempt to install Apache 2.2 again because I have a little more instruction to go by. Apparently not enough to deal with this snag though, at least not the way I want.

Install went fine, but I couldn't start the service. Following the error trail I found that it was binding IPv6 to port 80 and wouldn't allow any other ip or localhost to use it. I disabled IPv6, don't need it, I'll learn about it later.

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Fedora :: Connect To The Localhost At Port 6667 Using Irssi?

Aug 18, 2010

I want to use bitlbee-irssi to IM using gtalk.. I have installed bitlbee and edited /etc/bitlbee/bitlbee.conf with

RunMode = ForkDaemon
User = bitlbee
DaemonInterface = 127.0.0.1
DaemonPort = 6667

Now when I try to connect to the localhost at port 6667 using irssi, i get the following error message saying it cannot connect to localhost port 6667

13:48 -!- Irssi: Looking up localhost
13:48 -!- Irssi: Connecting to localhost [127.0.0.1] port 6667
13:48 -!- Irssi: Connection to localhost established
13:48 -!- Error: bind: Permission denied
13:48 -!- Error: listen: Bad file descriptor
13:48 -!- Irssi: Connection lost to localhost

A similar looking error comes up when I try to telnet localhost at 6667. Also, I get a selinux warning saying SELinux is preventing /usr/sbin/bitlbee "name_bind" access .How do I check if bitlbee is listening to port 6667? Btw, I am using fedora 13, I have selinux running in enforcing mode and the firewall running. I have set the port 6667 in the other ports tab of "system-config-firewall" (I am hoping that this will open that port).

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General :: Connecting To Mysql Database Remotely Via Port 3306 ?

Jul 23, 2011

I'm new to linux, and setting up the mysql database server.

Here are my situation:

OS: CentOS 6
mysql version: 5.5

I tried to use MySQL Administrator to connect to my database on the host 192.168.1.120
and my computer is under the same network with ip: 192.168.1.105

But it shows the error msg: Could not connect to MySQL instance at 192.168.1.120

Error: Can't connect to MySQL server on '192.168.1.120'(61)(code 2003)

On the server side I've tried:

Code:

skip_networking is off and I've set the port for it.

When I check the process in OS:

Code:

When I try netstat:

Code:

I thought it's the problem of firewall, so I have check it also:

Code:

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Server :: If Forward A Port In Iptables, Does The Port Have To Be Open On The Firewall

Aug 5, 2009

If I forward port 80 to port 3128 for squid with an iptable rule, does port 3128 have to be open on the firewall or is this all routed behind the firewall?

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CentOS 5 Networking :: Can't Telnet Localhost 1812 (radius Sever Port) / Enable This?

Sep 25, 2009

I have opened/added the ports 1812 and 1813 (both tcp & udp) for radius server in the firewall.

when i use the command : telnet localhost 1812 , the connection says "refused", i get the following messages code...

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OpenSUSE Network :: Add Network Manager Notifier In Open Suse 11.3 KDE?

Apr 4, 2011

I mistakenly delete my default panel. How to add the network notifier? Tried to look for the widget but nothing? i need to choose my network connections. And when i look at the Network manager my wireless if black ? It means it didn't detected my wireless?

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General :: Can't Open Display - Localhost - 0.0

Dec 1, 2010

Im using the Redhat 5, when m trying to connect from X-start it showing error:

Can't open display: localhost:0.0

Where as /etc/ssh/sshd_config settings are correct

Also ssh is running
$DISPLAY is set to localhost
still it is not started any x-service

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General :: Can't Open Display Localhost:0.0?

Mar 31, 2011

I'm trying to connect to my linux server but I'm having some major problems. The server had OEL 5 installed and my local pc is running Windows XP. I'm using PuTTy to connect to the server with Xming running on my loacl machine. I login as root and run the following command - export DISPLAY={ipaddress}:0.0I then run xclock and get the following error - Xlib: connection to "{ipaddress}:0.0" refused by serverXlib: No protocol specifiedError: Can't open display: {ipaddress}:0.0The strange thing is that on my bosses pc (who has got almost the exact same setup ie. PuTTy & Xming) is works perfectly.

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Fedora :: Open Graphical Applications Through SSH - Remotely

Mar 21, 2010

I have a small question regarding remote access through SSH. Here is the thing: it's been a while now that I am using SSH to remotely login servers, and more recently my own machines to transfer information from my school's workstation to my Aspire One (I effectively work in the Aspire One through a 24 inch monitor).

Anyway I was wondering if it is possible to open programs like evince through SSH. I'll describe what I am doing: the Aspire One sits next to my workstation (so I am seeing it's screen as well) and in the workstation I work in LaTex documents actually residing in the Aspire One, so what I want to do from time to time is to open graphical apps in my Aspire One from my workstation through SSH (needless to say that I open the graphical session in the AO with the same user I do SSH, and the AO runs Fedora 12).

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Server :: Open SMTP Port On Router (which Connects LAN To Internet) Also Needs To Open?

Apr 14, 2010

I have sendmail running on my centOS 4.6. My lamp server also runs on it. I want to send mail through php mail function. when i execute php page, which fires the mail function, it takes so much long tim1 say even 1 minute, and at last displays that message sent successfully. Suppose, destination address is [URL].... I did not get any mail there. My server is running in LAN. I checked the status of sendmail, it shows me that it ios running. when i issue "nmap localhost" it shows me that SMTP port 25 is open, but when i issue "nmap myserver" (192.168.1.20 myserver ( written in hostfile)), it does not show that SMTP port is open.

I checked the /var/log/maillog, one person in my previous post advice me to see that. There it shows that message is accepted for delivery...but i do not get any mail in my destination, even not in spam folder. One more confusion is that, in my case my server is in LAN and if I am at all enable to open the SMTP port on it, does i need to open SMTP port on my router (which connects my LAN to internet) also needs to open? I think no, because SMTP is application layer protocol, it will wrap my mail in IP packet, which router just need to forward. am i right?

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OpenSUSE Network :: WMQ And 1414 Unable To Bind To Port

Feb 16, 2010

I have a QMgr running on a SUSE 11.1 - I start my runmqlsr under qmgr control on 1414. After a few minutes the listener dies saying that it can't bind to port. I did a netstat -a and I see no service on 1414. I did an lsof | grep 1414 and found nothing. what am I missing here?

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OpenSUSE Network :: Router With 2 DSL Connections Not Port Forwarding?

Apr 26, 2010

I'm running suse 11.1 which is configured as a router. Configured are two DSL connections with static IP's and one LAN connection (3 NIC's all together).

Problem: suse firewall will only port forward connections from one of the DSL connections and not the other.

Because I'm running two DSL connections is there something special I have to turn on/enable on the firewall?

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OpenSUSE Network :: Block All Ports But Port 80 With Iptables (DMZ)?

Jun 25, 2010

I have a Suse 10.3 router with 4 network cards. 1 is to connect to the big network and thereby also the internet, 2 are for 'client' subnets and I want to use the last one as a DMZ. In this DMZ will be a web server which has to be accessible from the other 2 subnets and from the big network. I could do it with a few simple clicks in Yast firewall, but I have some issues with this firewall and there for I want to use it as minimal as possible, using Iptables.

So now I'm struggling a bit with Iptables. Basicly what I'm looking for is how to block all ports but 80 in this last subnet with iptables.

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