OpenSUSE Network :: Vuze Firewall And Port Forwarding?
Jan 15, 2011
I used to have Opensuse 11.0 and Vuze 4.0.2 and both were working great. Recently I upgraded to OpenSuse 11.3 and installed Vuze 4.5.10. I did not change any configuration in the ADSL router but now I could not get the smiley icon to go green. I followed all the steps given here: A Quick Bittorrent Guide (with screenshots). It doesn't work. so I modified FW_ROUTE and FW_MASQUERADE to yes in /etc/sysconfig/SuSefirewall2. That also does not work. What did I miss here? My ADSL router is DSL-2640T.
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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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May 17, 2011
I have two SUSE(2.6) virtual machines running in the same subnet with two network cards each as shown below.
VM1------------------------------------------------------------------------------
appstage1:~ # ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:22:5A:24
inet addr:192.168.128.12 Bcast:192.168.128.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe22:5a24/64 Scope:Link
[Code]....
Ultimately my DB will run in VM2 and any DB requests coming in at 2055 of VM1 should be forwarded to port 2055 of VM2. Since I do not yet have a DB running I am trying to test with netcat.
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May 23, 2010
How do you configure the firewall to allow external web access (it's a LAMP server) and internal access for samba shares ?
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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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Mar 23, 2010
In the firewall, I opened port 5900 for TCP traffic. Now the console is displaying packet information whenever a connection is made. Why does it send a message to stdout/stderr for an allowed connection? How can I stop it? Logging level is set to critical only, and not-accepted packets should only be logged for the internal and DMZ zones.
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Dec 12, 2009
I have just set up shorewall on my router running Arch Linux. The external network is on eth0 and the internal network on eth1.I have set it up for masquerading and that works fine and I can open ports to the firewall. But I'm having trouble with port forwarding to my internal machines.The problem I have is that when port 22350 is forwarded to 192.168.1.3 on my local network, checking the port with nmap from a remote computer gives me:
Code:
PORT STATE SERVICE
22350/tcp closed unknown
[code]....
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Feb 26, 2010
I have a question about port forwarding. I have an internal Red Hat server and I would like to use it as a central connection point to some back end servers. This is not an internet router setup. I was thinking I could use iptables and do port forwarding similar to an internet router but internal to internal.
Basically I would like to take any connections to port 22 on server1 interface eth0 and forward them out of interface eth1 to server2 port 22.I am finding a lot of information on port forwarding, but it is all based on using an internet router that is passing through to an internal server. I need to know how to configure a basic linux setup with no existing iptables entries so that I can do this within an existing network.Also, if there is a better or easier approach I would appreciate any direction. I don't want to do this through an SSH tunnel.I know to start I need the following to enable forwarding in the kernel and a firewall PREROUTING rule.
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Apr 9, 2010
I have an internal network behind a server <10.0.0.1> connected to the internet that NATs my ip <10.17.11.88> only. NAT is not allowed to any other ip addresses. When I use Transmission Bittorrent client to download torrents, The thing is that this 10.20.0.244 is not my machine and doesn't have access to the internet at all. What is happening here? Can anyone help me?
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Feb 7, 2010
I am setting up Apache (Fedora 12) inside my home network. From inside my home network I access it without any problem. I need to set it up to access it from internet. I have the following questions. Here is temporary setup for testing purpose.
Internet-->ADSL modem (SEIMENS Speed Stream 4200)---> Apache (Fedora 12)
1. Do I have to do any kind of ports forwarding on ADSL modem. (There is no option to do port forwarding on Modem) May be I need different Model of Modem??
2. I tired to Ping my real IP for modem form another computer from internet. I am even unable to PING the ADSL 's real IP. Why it is that?
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Feb 21, 2010
while installing vuze, it asks for jre 1.4.x or higher. i've installed jre 1.6, but still unable to install vuze.
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Mar 25, 2011
I suspect this is an initial configuration bug. All firewall logs seem to be going to all
three files. That causes a lot of clutter in the log files, and makes it difficult to see whether there are any serious problems being logged.
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Jul 20, 2010
I tried to make "ssh tunneling", but failed and got this message.
Quote:
Administrator@windstory-PC /
$ ssh -R 7869:localhost:7869 windowsstudy@192.168.0.4
windowsstudy@192.168.0.4's password:
Warning: remote port forwarding failed for listen port 7869 Last login: Wed Jul 21 01:56:04 2010 from 192.168.0.2 -bash-3.2$
1. system environment
192.168.0.2 - windows 7 + copssh
192.168.0.4 - centos 5.4 x86 + openssh
2. Guide for setting "ssh tunneling"
[URL]
3. Added this to sshd.conf
Quote:
AllowTcpForwarding yes
4. "netstat -na|grep 7869" at 192.168.0.4
Quote:
[root:maestro:~]# netstat -na|grep 7869
tcp 0 0 0.0.0.0:7869 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:7869 127.0.0.1:53539 ESTABLISHED
[code]....
5. result of "ssh -vvv -R 7869:localhost:7869 windowsstudy@192.168.0.4"
Quote:
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
[code]....
6. I added 7869 for telnet service as follow;
Quote:
mytelnet 7869/tcp # My Telnet server
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Nov 1, 2010
sudo ssh -L 750:192.168.123.103:873 username@192.168.123.103It does exactly what it's supposed to do, but how do i edit / remove this rule?Is there some config file where i can alter the forwarding? How does it get stored?Im using Ubuntu 10.10Server Edition (allthough i recon it would be pretty much the same across all versions
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Mar 28, 2010
I'm not that great with mailservers, and just been thrown a curveball with a MS Exchange environment for which there is apparently no solution... yeah, right. But is there a workaround?
The problem is that the site mail (SMTP) needs to be sent via port 26 instead of the commonly used 25. Port 25 is mapped to a mailfilter, which apparently causes havoc with some of the mail, and the techs that have been on site trying to coax the Exchange server to co-operate have said that the only way would be to get rid of the filter.
The problem is that there are number of apps that are unable to have the outgoing port changed and so keep sending mail out on port 25.
I look after the Unix/Linux side of things at work, and I was wondering if there was an easy way to set up a Ubuntu box to receive mail on port 25 and just forward it to the MS box on port 26? So, in other words (and I hope this makes sense): monitor port 25, and forward whatever comes in on port 25 to the server on port 26. Simple portforwarding, or is it? What steps do I need to take?
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Aug 7, 2010
When I use the following command:
ssh user@ssh_server -L 5500:localhost:5500 -p 22
everything works fine. I can log in, and local port forwarding is done. Otherwise when I use the command:
ssh user@ssh_server -R 5500:localhost:5500 -p 22
I get an error "remote port forwarding failed for listen port 5500". However when I try remote port forwarding in WinXP by use of putty there is no problem...
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Apr 27, 2011
I'll explain this in one sentence: Is it possible to program a port-binding shellcode in which people across the Internet can connect to, without being thwarted by the router blocking their data because the port its bound to doesn't allow port-forwarding
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Nov 11, 2010
As it stands I have a small home network operating behind my modem/router. Some of the ports on this are forwarded to my PS3 for gaming but I was looking at forward some for my file server.
At the moment I've forwarded port xxx22 to port 22 on my server for SSH for instance. ANd similarly 21 for FTP (although it doesnt seem to want to connect for any more than a few seconds using that). What I was thinking of doing was placing a small website for a handful of ppl to use on the server too and port forward again - xxx80 to 80. It works just fine but I'm a little concerned on the security front.
As I've moved the port to something different from the outside world I'm presuming I will have already cut the potential for malicious folks to wander in but is there anything else I should be doing? At the moment there's no firewall operating on the server, usually as its hidden behind the modem/router. But if I open this thign up more permanently what should I be doing? I've read a few articles on it but I'm always left with the overwhelming thought of "Thats if theres no firewall in my router" as they just seem to do the same.
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Jul 14, 2011
I want to set my ip as static and port forward it through a specific port can anyone help me with this im using ubuntu 10 with 64 bit OS
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Mar 25, 2010
I have a mail server on which I would like to block port 25 on my eth0 for everyone except our external spam filter. the problem is that I want our users to be able to connect via port 10025 which is forwarded to port 25, which then is blocked...
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Oct 24, 2010
I had to add them to my firewall script when I installed openvpn on my dd-wrt router:
iptables -I FORWARD -i br0 -o tun0 -j ACCEPT
iptables -I FORWARD -i tun0 -o br0 -j ACCEPT
iptables -I INPUT -i tun0 -j REJECT
iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
what should I add/change to set up port forwarding of port 1000 to ip 192.168.1.200. also how to get the answer sent by 192.168.1.200 follow the same route used by the data received through port forwarding.
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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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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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Apr 21, 2011
I was setting up a new 11.4 system and disabled ip6 as we don't use it. After that I couldn't get X11 forwarding working. After searching around for a while, I found this topic [URL] ssh-x11-forwarding.html which at the end mentions enabling ip6. Magically, after doing that and rebooting I can now do X11 forwarding again. Just seems strange that IP6 is needed for X11 forwarding.
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Apr 7, 2011
I want some advice for making my system more secure. I want deactivate any network connection that is unnecessary. Only my browser and the update ability of zypper should have access to the internet. On windows there are personal firewalls.
How can I block internetaccess for all other programmes on openSUSE?
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Jan 12, 2010
Ethernet configuration:
- eth0 private net
- eth1 internet
eth1 is connected to a cable modem and uses dhcp. After migrating to suse-11.2 ip-forwarding (once the system is up and running) is sometimes deactivated and i have no clue why. /etc/syslog.conf has an entry net.ipv4.ip_forwarding = 1
i have modified the SuSE-scripts /sbin/SuSEfirewall /sbin/ifup-dhcp /etc/init.d/SuSEfirewall2_setup to make sure each time my firewall-rules are loaded ip-forwarding is explicitly enabled. This worked perfectly with suse-11.0. Now ip-forwarding is enabled after a system reboot or after one of the above scripts is called, but somewhere somehow ip-forwarding is always deactivated and i have no idea how this happens. This may happen after 5 minutes or after 5 hours. As a workaround i created a cronjob running every 5 minutes issuing a sysctl-command to enable ip-forwarding.
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Jul 26, 2010
Samba is working correctly if Susefirewall2 is off. I have added Samba client and Samba Services for extern access but samba is not working when firewall is now on. Which services should I also add ?
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Mar 26, 2010
we have here a few openSUSE-machines (some 11.1 and 11.2) which mounts their /home from a NFS-Server and imports the users via NIS. I now wanted to use X-Forwarding via SSH, but that doesn't work with NIS-Users.On my machine I use Gnome and my XAUTHORITY-Variable points to /var/run/gdm/auth-for-bup_deg-E3TMSz/database
Why isn't the default ~/.Xauthority-File used for my cookies? What do I have to change to get X-Forwarding in my Setup running?
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Jan 30, 2011
I want to share my WiFi internet connection over LAN, so I'm trying to set up IP forwarding. An old tutorial tells me to go to Network Settings in YaST to do this, but that applet says that NetworkManager is now handling all of that stuff.How do I enable IP forwarding while NetworkManager handles my internet connections?
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Jan 20, 2010
I have x11 forwarding enabled in /etc/ssh/sshd_config on a suse 11.2 32 bit box running kde I can open x apps on a windows machine using xming and putty just fine, but when I boot the same machine into suse 11.2 64 bit using kde and try using konsole I get: cannot connect to x server
The command I'm using to log in is: ssh -X -l username host I doubt the problem is with the server I'm logging into or it wouldn't work in windows, not really sure what to look for as I've never had a problem using x11 forwarding from a linux client before only windows ones
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