Ubuntu Networking :: Set Up Dedicated Server For Source Games - Port Closed?
Jun 23, 2011
I am currently having an issue attempting to set up a dedicated server for source games (TF2, CS:S, L4D2). The required port (27015), along with most others, appears closed to the rest of the world and upon a port scan with DMZ hosting on (therefore no router interference between the internet and my computer) only a few ports are open (80, 139, 443, 445). My ISP does not block ports so therefore the only issue I can find is with my computer running Ubuntu 11.04. I have ensured that all traffic is allowed via iptables and I can't think of anything else that would have ports closed.
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Sep 21, 2010
Wow, don't know why I seem to have so much trouble with this ftp stuff. I have so start all over a few times, reinstalling Lucid Lynx destop all over, and adding the needed files to make it a server. I am just trying to do something simple for now- just having a localhost server environment to develop my joomla website, and later on host it from my server 'out there' (I already have a domain name and dynDNS service with nameservers etc. but don't want to do that yet, as I have in the past with my router forwarding port 80, and actually got hacked! so I don't want to do that again until I learn more about security) My problem right now is that I can't even get the localhost ftp to 'connect to the server'. i know the host name (localhost) and username/password that I set when I set up Lucid Lynx, and I'm sure that is what I use for the ftp usernamepassword, host etc. And I put port 21 for the port. I see from 'Shields Up' that my port 21 is closed. So I followed advice on a thread and entered a few commands in the terminal to ad iptables etc. But still, port 21 is closed and I can't install components with the Joomla installer in admin's backend. And I can't use fireftp to even change permissions in my local folders. What do i do next, open port 21 somehow? I saw a terminal command about opening port 21 that was simple but I forget it.
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Apr 18, 2010
i have a script in /home/rpcaldeira/server.sh to start my source dedicated server. But i would like to start this on boot time. get this to start on boot time? I'm running openSuse 11.2 in Text Mode.
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Nov 26, 2010
Been a while since I last posted here, though I stop by often. Unfortunately I find myself in a bit of a pickle again. Here's the situation. I have an RHEL3u5 server running Apache 2.0.48 and an equivalent of Tomcat and JBoss. IBM's WebSphere Application Server 6.0.2 to be exact, the Apache also being one of their flavors (IBMIHS).
Everything's been going dandy since forever, but lately the httpd processes seemingly just hit a brick wall of some unknown kind. Checking the /server-status page reveals a whole lot of piling up "waits".
The funny part is that the load average rarely goes higher than 1.0, I/O seems within limits, memory usage as far as I can tell seems fine, disk usage appears all good... I would've felt more at ease if something did shoot through the roof, but there's just nothing to go on. It's definitely Apache getting its knickers all in a twist as well since I can access the servlet engine's web GUI just fine over its dedicated port via browser.
Here's what I noticed so far: Apache processes rise steadily to over 35 or so, after which it all goes south fast. As a result and as a temporary fix, I've enabled a cronjob that checks the amount of httpd processes and just restarts Apache if they're above 28. So far this seems to keep things sort of happy, but obviously I'm still twitchy with the overall state of affairs. I do not have the settings immediately at hand, but here are some further details so far:
Server spec:
8 x Xeon CPUs
8GB RAM
I'll post further details probably on Monday, specifically key portions of the httpd.conf file.
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Nov 16, 2010
I'm new to, not just SUSE, but Linux(.) I saw the link to the newbie guide However it's asking for information, I choose not to make public, or or known.Also, Any info on running a game server for Source SDK games.
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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 4, 2011
I have a server running slackware 13.1, and it is running windows server 2003 with QEMU-KVM. I followed [URL , now two system can connect each other.
The problem is: I bought two dedicated IPs, and I wanna know how to setup these two system to be Internet Servers.(Nginx in slackware, IIS in 2003) I found some subjects but I can't find what I want.
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May 21, 2010
I have set up a Virtual machine on a dedicated server from 1and1. I hoped to use a bridge to give the vm direct access to the internet but 1and1 do mac filtering and so the only option is to use NAT.
I used Virtual Machine Manager on my Ubuntu 10.04 machine at home to install Debain Lenny on the vm on the server using KVM and all went well. I put it on a virtual network 192.168.100.0 and i can access it from the host and i can access the internet from the guest using NAT that libvirt set-up.
I bought another ip address from 1and1 with the hope of forwarding packets to the new ip address 11.22.33.02 to the guest vm.
I have tried all sorts of routing rules using iptables without any success.
my virtual network is on virbr1 the guest ip is 192.168.100.50 my external network device is ip say 11.22.33.01 on eth0 with the secondary ip say 11.22.33.02 on eth0:1
Here are the latest rules i tried:
Quote:
iptables -t nat -A PREROUTING -d 11.22.33.02 -i eth0 -j DNAT --to-destination 192.168.100.50
iptables -t nat -A POSTROUTING -s 192.168.100.50 -o eth0 -j SNAT --to-source 11.22.33.02
iptables -A FORWARD -p tcp -i eth0 -o virbr1 -d 192.168.100.50 -m state --state NEW -j ACCEPT
iptables -A FORWARD -t filter -i eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT
[Code].....
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Jul 23, 2011
My network isPC1 -- (NIC1,10.1.1.x) Linux (NIC2,10.1.2.x) -- Server 1 (HTTP/FTP)My question isIn the linux system, can I change the PC1 source port from 20000 to 30000? for examplePC1(sport:20000,dport:80)---Linux-- (sport:30000,dport:80)--- Server 1 (HTTP/FTP)
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Oct 14, 2010
Installing the closed source java in Xubuntu 10.10.
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Nov 13, 2010
I would like to play .mp3 and .mpeg files with Red Hat Enterprise Linux 6 Client. Flash and Java must also be working. For Java, I have download the jre-6u22 and the jdk-6u22 and installed manually. How can I get automatically updates for them? For Flash, I have installed the i386 package and the .repo so the updates must working. So, I have
Code:
/etc/yum.repos.d/
adobe-linux-i386.repo
atrpms.repo
epel.repo
epel-testing.repo
mirrors-rpmforge
mirrors-rpmforge-extras
mirrors-rpmforge-testing
packagekit-media.repo
rpmforge.repo
rpmforge.repo.rpmnew
rpmforge-testing.repo.rpmsave
rpmfusion-free-updates.repo
rpmfusion-free-updates-testing.repo
rpmfusion-nonfree-updates.repo
rpmfusion-nonfree-updates-testing.repo
[URL] hasn't RHEL6 yet.
Enabled are only Adobe, RHEL Client v6 for 64-bit x86_64 and the RHEL 6Client - RPMforge -dag repositories. The others make problems with dependencys. RPM Fusion has no EL 6 repos, so I deactivate them. I have chosed to install the gstreamer plug-ins bad but haven't find them. Manually download from rpmfind or pbone results with wrong depencies...it's horrible.
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Oct 11, 2010
i need the closed source version of java plugin for ubuntu 10.10final for i can use pogo
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May 17, 2010
I've searched through the forums and found a few threads that kind of helped, but I'm still pretty lost when it comes to TC. I'm trying to do and also break it down and explain what each part of the command does so that I can learn along the way. What I'm trying to do is limit any connection from source port 6001 to 30KB/s.
I'm currently running a game server and it has no built in bandwidth limiting feature, which means if someone logs in and needs to download the map it destroys my bandwidth for the rest of the servers players. The game server is running on port 6001.
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Feb 18, 2010
nmap is showing a port as closed. I have the firewall stopped on both hosts.It shows as closed on localhost as well.The process that's listening to that port is not started from xinetd so i doubt hosts.allow/deny is the issue.I can't help but feel that I'm forgetting some other access control mechanism.Both hosts are RHEl5.4
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Mar 18, 2010
I'm asked to create a network tool in C and a GUI API in linux platform by my company. I'm aware of the GPL & GLPL licenses , but not clear whether I can create a proprietary commercial software with the tools & libraries available in Linux: My tool will be written in C and will be using the some network library functions in the Linux and some header files .(Their license is GPL) , also the GUI i'm planning to develop is using GTK and Glade / Anjuta, (GTK is based on GLPL license) , I will be using GCC compiler for C programs,
Please let me know whether it is possible to create a closed source-commercial software using the above tools/libraries, if not possible is there any workaround is there for creating commerical tools in linux Can I make some part of my code closed and some parts open? Also please let me know which is the best GUI building programming language/IDE that can be used with C programs in linux
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May 24, 2010
I had an install of 8.04 running Tomcat 6 on port 80. I did a marathon upgrade session to 8.10, then 9.04, then 9.10, and finally to 10.04. My website no longer loads (from Internet, LAN, or local), and a port scan shows port 80 is not open. I have removed and reinstalled Tomcat 6, to no avail.
Could it be that the 10.04 upgrade saw an existing Desktop install and locked this port down? The /etc/Tomcat6/server.xml shows it is using port 80, so that much appears to be correctly configured. Before this would give me the ROOT webapp. Anything else I can check? Does this sound like a Tomcat problem or something Ubuntu is doing?
As a side note, I have installed the Tomcat 6 Docs and Manager apps as well. These also worked before the upgrades, and do not now.
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Nov 15, 2009
My computer is DMZ'ed ports forwarded and stuff, and still this port shows as closed on nmap.
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Feb 18, 2010
I am only getting 4.7kb/s, dispite there being 31 or so Seeders. The port is just opening and closing it seems, I have no idea why though.The port was opened both with firestarter (which isn't supposed to be firewalling ATM) and "sudo iptables -A INPUT -p tcp --dport 6884 -j ACCEPT".It was also opened under the 'Application Sharing' menu of my router.
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Sep 22, 2009
I am writing a program to read and write to devices over my serial port. My program will need to connect to up to four other machines at once. I can connect to machines successfully, it works well. However, after I connect and disconnect once, attempting to connect again will cause the FIRST serial connection will fail and all the ones after it will pass.
e.g.
Code:
fd[0]=connect("/dev/ttyS0");
fd[1]=connect("/dev/ttyS1");
fd[2]=connect("/dev/ttyS2");
fd[3]=connect("/dev/ttyS3");
code....
That works as long as it is executed only once in the program. The second time it is executed, fd[0] will die and fd[1-3] will work normally.I can't figure out why this happens, but I found a workaround by connecting to "/dev/null" before any real serial ports.What should I do?
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Jun 19, 2010
I have installed steam in wine, and installed some of my favorite games. The problem is, whenever I try to play one, there is no lag, but there is a constant flashing distortion over some part of the screen.
Specs:
Wine 1.1.42
ATI Radeon 3470 w/ ATI proprietary drivers
Ubuntu 10.04 x86
This is exactly what it looks like:[URL]..
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Apr 4, 2011
I have the following problem: syslog is constantly writing to disk, because the kernel spams these messages
Code:
Apr 4 14:14:56 aspire kernel: [138498.252610] display port opened
Apr 4 14:14:56 aspire kernel: [138498.299755] display port closed
Apr 4 14:14:57 aspire kernel: [138499.328206] display port opened
Apr 4 14:14:57 aspire kernel: [138499.371835] display port closed
Apr 4 14:14:58 aspire kernel: [138500.452671] display port opened
[Code]...
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Feb 26, 2010
I have a java application that I wrote recently. It runs off port 9955. The application runs great on my mac server. When I installed it on my linux box i cant get to it from outside the box. A port scan shows the port as closed. I flushed my iptables, did not help. I can telnet into the app locally, from the server and it works great. I cannot telnet from outside the server. I have a reference to the application in /etc/services as a tcp port (which it is).
netstat shows it as listening
netstat --listen
tcp6 0 0 [::]: SimpleSocketTest [::]:* LISTEN
netstat -anp | grep 9955
tcp6 0 0 ::: 9955 :::* LISTEN 1484/java
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Jan 16, 2010
How to setup Dedicated Server for Web Hosting using Ubuntu Server or equivalent opensource Operating System? And how to make secured my Dedicated Server on public?
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Nov 24, 2010
After installation Ubuntu Server 10.10 I don't know what to do next to access to the Internet.
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Mar 16, 2010
I am trying to setup a sendmail server on my dedicated server. It was pre-configured to use exim from cpanel. Is it possible to use exim for all emails from a a certain domain i setup on the server and sendmail for others?
ex.
domain1.com -> exim
domain2.com -> sendmail
If it is possible can someone let me know how i would go about doing this? If it is not how would i disable exim and use sendmail for all mail?
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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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Sep 29, 2010
if anyone can point me in the direction of a tutorial (step by step) how to make a virtual dedicated server using ubuntu to host a website?
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Jan 29, 2011
I want to install Webmin on a dedicated remote server. I keep reading different blogs/tutorials etc about installing webmin on Ubunto server 10.10 but it seems too easy to be true. There is never any mention of requirements etc. I did read that even perl isn't needed pre install now and will install with webmin.But do i need to install lamp etc first or does it pull these in when Webmin its installed?
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Jul 10, 2011
I want to rent a (root) linux server to run a vpn service on it. I want to allow people to use this vpn.
My questions are as follows:
- What kind of server/service should I rent - dedicated or vps?
- Is one IP-Address enough to connect, say, 100 user? (I plan to run IPsec or OpenVPN, maybe PPTP)
- What Bandwith and/or traffic limits I need to consider to make the service reasonably fast for the users?
- Which Linux-distro should I use? Ubuntu Server, CentOS, FreeBSD, Debian etc?
- How much RAM and HDD space is recommended for such an endevour?
- Any advice on the processor type the server should have?
- Is 100M network ok or better 1000M?
- What means 100Mbps shared bandwidth in contrast to 10Mbps dedicated guaranteed per server?
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May 18, 2010
I am trying to connect to my VNC Server from a Windows 7 Box running TightVNC:I've followed all the instructions on this page:[URL]And I changed my xstartup scripts:
/etc/sysconfig/vncservers
# The VNCSERVERS variable is a list of display:user pairs.
#
[code]....
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