Ubuntu Servers :: Can't Reach Port On 10.04 64bits
Jan 11, 2011
I have ubuntu Linux xxxx 2.6.32-21-server #32-Ubuntu SMP Fri Apr 16 09:17:34 UTC 2010 x86_64 / GNU/Linux / Ubuntu 10.04 LTS installed on two identical hardware machines. SSH server work, ping work, oracle11g server works, but on one of mi servers one port of a application that develp here can be reach, the port is 2809 (corba). If i do telnet xxx 2809 on the machine, port is responding, but if i do the same in any machine in LAN, dont respond. This only happend on one server!!! the other just work fine I have all firewall disabled!!
Code:
root@xxx:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
[code]....
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Jun 23, 2011
I have just installed ubuntu Server with Apache2, PHP5, MySQL and PhpMyAdmin.
Everything works fine when I access the server on the LAN. I have forwarded port 80 in my router to the LAN ip of this server. (I have other windows based web servers so I am familiar with port forwarding) however when I try to access the server from the true static IP outside the LAN I cannot reach it and the connection just times out with the Ubuntu server connected if I use canyouseeme it says port 80 is closed. If I replace the Ubuntu server with another server I can reach this just fine from outside and canyouseeme says the port is open. So I am pretty darn sure the router is correct and that there is some config problem with the Ubuntu box, but I cannot find it. the ports.conf file has listen 80 in it and the apache2.conf includes the ports.conf file.
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Jul 11, 2011
I've installed apache2 on ubuntu 10.04 and everything works fine, but when I use functions that needs to connect to Internet, it doesn't work. Is there a simple setup I've forgot? I've been searching and looking for a solution, but I'm stuck!
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Jan 29, 2011
i have installed apache and bind on my server and i've also registered a dynamic domain through dyndns as jan27.dyndns.biz. i am able to successfully host my own webpages using this method.
then i registered a domain name (lets call it "blah.com") through namescheap.com and have registered my nameserver to my ip address. after reconfiguring the my external zones in bind and restarted my services, i am unable to reach my webpages through the new domain name.. www.blah.com and blah.com would lead me to a opendns.com page but interestingly ns1.blah.com loads my webpages successfully.
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Mar 1, 2011
I was just wondering if anyone could help me figure why I cant get my domain name to resolve with no "www." in Bind9 Ive tried a few different way to define my zone file, last one I tried was like this:
Code:
$TTL 604800
@ IN SOA ns.mydomain777.com. info.mydomain777.com. (
17 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
[Code]...
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Jan 4, 2011
i have search for a long time regarding this matter but i couldn't found nothing.... The facts are like this:
1. I have a server on Ubuntu Linux 10.10 with the following modules installed:
- Webmin 1.530
- BIND DNS Server
- Fetchmail Retrieval
- Dovecot
- Postfix
- a domain (www.domain.com) - the website it's not hosted on my machine
What i did until now:
- establish a local mail network like user@testserver.local
- successfully installed and configure Fetchmail Retrieval. like: user@domain.com mapped to user@testserver.local
2. The problem: Sending an e-mail using a POP3 client like Outlook from an local account! If i use the local address and try to deliver a message outside my local network the following error is sent by System Administrator: Code: Your message did not reach some or all of the intended recipients.
[Code]....
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Jan 24, 2011
install the linux-vdso.so in my ubuntu 9.04 64bits. I need it because multiple applications that I have programmed need it due to an inclusion of a 3rd party software. As I have seen this library is only available to fedora suse and other rpm OS. Should I install in my ubuntu machine? and how? I already tried to use the getlibs and tried to downloaded it but I didn't find it anywhere.
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Sep 23, 2010
The problem i have is that after sucessfully installing Ubuntu 10.04 (64bits) when i start my PC and i get to grub2 and select Ubuntu it will get stuck at a blank screen with only an "_" flickering on the top of the screen. At first i thought "Hey, maybe it just takes a while to boot" but after letting it sit there for about 20 minutes and nothing happening i decided to restart my PC. And then the same thing happened like 5 times. BUT on the 6th try it booted sucessfully! And everything was working perfectly but as soon as i restarted my PC i would encounter the same problem.
Details I should probably mention that i had the exact same problen on the install process. I tried with a CD i had burned the image on and it would show me install options (Try and install, install, etc.) But when i selected either one of those i would get the "_" flickering and nothing ever happening. Then i tried it with a DVD thinking that the CD was the issue. Same thing. After that i tried with a USB drive and i would get the same exact problem, but on the retry on the USB drive the planets aligned in such a way that i actually got the Virtual Ubuntu loaded from my USB drive.
So it installed sucessfully and when i restarted it i got to GRUB and selected Linux and the "_" would start showing and nothing ever happens. On the <random number> of restarts it actually launched and it picked up my audio, video cards, other NTFS drives, etc. But when i restarted i would get the problem again. I even went trough the whole install process AGAIN (getting it to read from the USB flash drive, starting on Ubuntu) and still no consistent results. Though on the second install it didn't pick up my audio hardware nor my other NTFS drives until the second restart where i was able to use Ubuntu normally. I even upgraded what it told me to upgrade. (now i have two "different" versions of ubuntu on grub, each with it's own safe mode only different by a .24 and a .25 on their names) and right after upgrading and restarting it booted immediately. But after that i'm getting the same issue over and over again.
[Code]...
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Dec 25, 2010
Recently I installed Open Arena but didn't had time to play it at the moment. Well I had some time to play and it run very well except for absolute no bots at all. Tried all ways Single player and Multi-player, Skirmish add bots buttons are active but they don't work.
Here the terminal output: (I simply opened the game and close it, if you want me to enter single player or other options just tell me I'll post the output)
ioq3+oa 1.35 linux-x86_64 Dec 18 2009
----- FS_Startup -----
Current search path:
/home/slater/.openarena/baseoa
[code]...
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Nov 18, 2010
Can I use ntpdate after http servers and how? I use Ubunto 10.04 64bits.
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Feb 18, 2010
I want to do a simple port redirect, i.e. whatever comes trough whatever interface on port AAAA will get redirected to port BBBBI thought that iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport AAAA -j REDIRECT --to-ports BBBBhowever it doesn't work, e.g. nc -v -w2 -z localhost AAAA gives:
nc: connect to localhost port AAAA (tcp) failed: Connection refused
while
nc -v -w2 -z localhost BBBB
[code]....
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Jan 25, 2011
Where can I get Firefox 3.6.12 for Slackware 13.1 64bits? I can get nightly builds from mozilla e.g. Namoroka, but not a stable release..
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Oct 11, 2010
I can seem to open port 25565 for a java application (executable jar)
I'm running ubuntu server 9 thoroughly up to date code...
Yet connections to port 25565 fail when I have the firewall enabled (sudo ufw enable)
For example canyouseeme.org says "Error: I could not see your service on port (25565) Reason: Connection timed out"
And connections to port 25565 _DO WORK_ when I disable the firewall (sudo ufw disable)
canyouseeme.org says "Success: I can see your service on port (25565)"
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Aug 9, 2011
I have an Ubuntu 11.04 server with lighttpd installed as my web server. It was working fine, but now when I restart it it gives me the following error...
"can't bind to port: 80 Address already in use"
Is there a way for me to find out what is using port 80 in it's place?
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Jan 8, 2010
I have two computers running Kubuntu 9.10 (using the upgrade paths from 8.04 and so on) one running 32bit and the other running 64 bit and I have the following problem: On the 32bit version installing the repository package for Digikam, everything works just fine. On the 64bit version I have two problems:
First digikam won't start due to the following error:
digikam: symbol lookup error: /usr/lib/kde4/digikamimageplugin_freerotation.so:
undefined symbol: _ZN7Digikam11ImagePlugin17setActionCategoryERK7QSt ring
I'll have to delete all digikamplugin files from /usr/lib/kde4 and then it works from the command line. It appears that everything is working as it should.Second, starting digikam from Lancelot does nothing.
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Nov 11, 2009
I've just migrated to Fedora after 2 years of Ubuntu, and I'm rather happy with it, except for one problem left. When I launch a windows program through wine (I've only tried games yet), it won't go fullscreen. I tried everything I fond on the internet: disabling compiz, enabling/disabling virtual desktop, but no matter what, my game is still on a tiny window. I tried switching my resolution to the one of the game, it doesn't change anything. And pressing alt+Enter doesn't change anything either, except sometimes crashing the game. The 32 bits libraries for xorg-nvidia are installed, and I don't see what could cause this problem.
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Sep 8, 2010
I'm looking for a UPS for my computer setup. This one looks interesting:CyberPower CP800AVR 800VA 450W. The docs say: 'HID compliant USB port enables full integration with built-in power management and auto shutdown features of Windows, Linux and Mac OS X' Unfortunately I don't really know what that means? Will it work with OpenSUSE? My machine is not very power hungry buts its not light-weight. It's a quad-core system with 5 SATA disks, 2 burners, a 30" display plus some smaller accessories. It takes about 2-3 mins to shutdown due to all the services I have running on it, so to be safe I need a little margin of shutdown time from there.
Anyone used this UPS? or something similar? APC and Cyberpower are generally easy to get and have models which I can afford.
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Jan 20, 2010
I have a virtual server setup on port 80 that works fine, however, if I change the port to, say, 8080 the browser then fails to connect.I'm using webmin to configure everything, all the other settings seem to work as I would expect.I get the error "Safari canī open the page http://192.168.0.12:8080 because Safari cant connect to the server 192.168.0.1." in safari, and i get something similar on the xubuntu machine in firefox connecting via localhost.It's almost as though theres a firewall in the way, but I think it's more likely to be some config problem.
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Jan 30, 2010
So first off, it probably seems this question has been asked thousands of times before. but I did do a search, mostly archived posts that ended up being something other than a true ip blocking of the port. [URL]..
So my port 80 is truly blocked. Ive tried setting up the port forwarding on my router, Ive tried manually allowing all traffic on port 80 through ip tables. Ive even dabbled with setting up something like openDNS to see So far nothing, Im only available on my local network.
There has to be some way to do a redirect though. even something as simple as an htaccess file redirecting [URL].. xxxx (the space is there to avoid my url being interrupted by a smiley
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Apr 11, 2010
I was wondering if I can use a different port for WebMin down below 1024 where I forward ports to my Linux box, rather than the current 10,000.
The reason is I forward higher ports to the Windows machine at present.
The goal is to keep Linux services down in the low port range. Suggestions?
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May 15, 2010
when i fisrt signed up for this forums i accidently posted this same topic in the first place i found apropriate(network/wirless) and i just realised i didn't look hard enough so i marked my old post as solved, please admin delete that one. ubuntu server 10.04 LTS running ubuntu desktop on top(for my lack of skill)ok nitty-gritty. i have been learning to use linux for a few months now and i like it but i cannot access my server through WAN on any ports, yes i have them all open and enabled and associated on my router properly. i even tryed turning off firewall on here and i have tryed a list of misc. things. is there something i am not doing that one might initialy do when first starting an ubuntu server?
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Jul 10, 2010
I have two computers on a LAN. (This is history not a Bazaar question, although I have one of those too) One of them (Ubuntu 9.04) Im using as a Bazaar repository over sftp. Its been working fine for about a year. Then we had a thunderstorm that knocked out our Internet service for a couple of days. When it came back up everything is working fine accept I could no longer commit to the server. A little detective work showed that ssh was not running on the server. I started it and Bazaar then couldnt find the repository files. I still suspected an ssh problem, but port scans from both computers showed port 22 open on the server and I could do a ssh login from the client ok. Then I started fiddling with ssh on the server and now I have ssh problems on top of the Bazaar problems.
On the server I deleted then regenerated the ssh keys. Ive done
sudo /etc/init.d/ssh reload
sudo /etc/init.d/ssh start
I get a normal starting message and ps ef |grep ssh
shows /usr/sbin/sshd running. But the port scan does not show 22 open and I get connection refused at the client.
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Aug 4, 2010
I would like to change port number for a specific folder name on linux server like domain.com/folder_name:yyyy so people can access that folder with pre defined port number. is there a way that I can do that?
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Sep 8, 2010
Is it possible to check if a particular port is open for a particular ip in the terminal?
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Oct 5, 2010
I have Ubuntu Server (x64) installed on my box with Apache2 and Squid. For awahile port 80 (http) was fine, I could update packages and use wget. Then one random day port 80 became blocked for incoming traffic. I couldn't use apt-get and had to change to an ftp mirror to update. Also wget is not working.
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Oct 22, 2010
As far as I understand ssh runs on port 22 but in my /var/log/auth.log I see
Quote:
why is this logged 48504 different than ssh port 22?
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Nov 13, 2010
I have a server set up with a VPN (openVPN with DynDNS). My emails are located there and I can check them from home, office, where ever really, with different computers, no problem.However, due to restrictions of some ISPs I would have to change the SMTP server used, depending on where I am with my laptop.
Now, I thought about using the VPN to also tunnel the SMTP traffic through that. But how am I doing that?So far, when I'm connected to via VPN I simply have a local (from the server point of view) IP address to connect to my IMAP server. But how can I route the SMTP port 25 through the VPN?Is that possible to do, also in a way that I don't have to change anything depending on where I am, as in within the network of the server or outside? Since when I'm within the network the VPN obviously isn't connecting..
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Dec 1, 2010
I have an apache2 server on a Debian box that I am using as the reverse proxy for my sites that are sitting behind it and everyone is happy. But now I want to be able to access my vmware server console from outside the network without exposing the vmware server port to the internet. So I did this I created a new virtual host for apache and it looks like this (edited for the real world)
Code:
<VirtualHost *:80>
ServerName server.my.domain
# RewriteLog "/var/log/apache2/rewrite.log"
# RewriteLogLevel 9
[Code]....
So here is what I want to be able to do. I want to be able to punch in [URL] and have the reverse proxy just take care of everything else without having to punch in the port number or anything else. I'd also like to have if possible the ssl on the vmware box just pass through the proxy back to the end user. If that isn't possible and I need to create a new ssl for the apache box then that is ok too. I have googled this and looked at several other sites but I'm still a little bit lost.
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Dec 13, 2010
We have a Ubuntu system that is connected to 4 different networks.
Code:
eth0: 192.168.12.9
eth1: 192.168.2.142
[code]....
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Jan 9, 2011
I am running Ubuntu Server 10.10 still and I finally got a wired connection, but when I use the ifconfig command all I see is the lo(loopback) connection, and i don't know how to enable the eth0 port?
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