CentOS 5 Networking :: XP Boxes - Tomcat Server Running On Port 8080
May 5, 2009
My first time installing centos server and adding it to xp home network. I am new to setting up my own network in general. I have a home windows wired ethernet xp network (simple linxs router) with 2 xp boxes and one centos5 box all connected to the same router. I just set up the centos box running tomcat on port 8080. I need to do two very basic things at this point, but am not sure what I need to do:
What do I need to do so I can:
1. Connect in firefox on one of my xp boxes and call the tomcat server running on my centos box?
2. Be able to ftp to centos box from either of my xp boxes?
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Jul 29, 2009
I am having trouble getting my FC10 with tomcat visible to the outside world. first off i am somewhat new to linux. I am running vmware workstation to host my linux web server. i have my VMWare setup to use my second NIC solely. it is bridged and the tcp/ip is disable from the host. i can ping the ip address but cant access tomcat on port 8080 from the outside. i can hit it fine from inside fedora. i have configured my router (wrt54gs with DD-WRT firmware) for port forwarding. so basically i think that the problem is somewhere in between the host and the vmware configuring allowing the port to be forwarded through.
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May 30, 2011
i am not able to port 8080 on my CentOS VPS server.I have followed all the instuctions as mentioned on iptables wiki page.Also I am able to telnet my ip address and port number, But can not access from browser.
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Aug 1, 2009
I have 2 server behind the netgear router on my network . win2k3 and CentOS development server, I have port forarded 80 to win2k3 server which i can access over the internet and is accessable. However I can SSH CentOS machine and portforwarded 8080 and 82 for web access, I can't access via any of the port, browsers says UNABLE TO CONNECT.. there is no firewall in CentOS machine.
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Apr 27, 2011
I'm trying to open up some ports to connect via vnc to a server running Centos 5.5. I've edited /etc/sysconfig/iptables everything *looks* fine, but I still can't seem to get access to the port I've opened (I added some newlines for clarity between commands):
[Code]....
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Dec 2, 2010
My Apache is not listening on port 8080. Hence i cant access my server manager [URL]
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Apr 25, 2011
I have got a reverse proxy that is working just fine, it accepts requests on port 443 and port 80 and ONLY sends traffic upstream to port 80 to the apache server listening on localhost. I use the following config:
https_port 10.14.1.72:443 cert=/etc/squid/self_certs/site.crt key=/etc/squid/self_certs/site.key defaultsite=site vhost
cache_peer 127.0.0.1 parent 443 80 no-query originserver login=PASS
http_port 10.14.1.72:80 vhost
My problem is the following : The site should act differently in some occasions based on whether http or https was requested. So my idea is to setup second http vhost on apache listening to port 8080 and on that vhost I would server the https code. So is it possible to use SQUID to :
Send traffic destined for port 443 to localhost:8080
and
Send traffic destined for port 80 to localhost:80 ?
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May 16, 2011
I have a iptable as firewall, I want to open incoming of port 8080 so I use "# Allow forwarding of incoming Port 8080 traffic" but it didn't work? how can I open just incoming of port 8080?
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Nov 26, 2010
I am a network/system Administrator in an avg. based company, we are using Cent Os as servers. We are developing applications in both php & java, for java we are using apache tomcat as server (port number 8080) & for php we are using apache as server (port 80). Php applications are uploaded in the server and giving the link to our clients like localhost.com/chrome. Now we are planning to give the java based application for testing purpose to clients & can give the application link to client as localhost.com:8080/mozilla. Is it is possible to change the link localhost.com:8080/mozilla to localhost.com/mozilla with out changing the portnumber of apache tomcat server & without interrupting the php applications, that means our clients can access php application as localhost.com/chrome & java application as localhost.com/mozilla in the same server at the same time.
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May 24, 2010
On my Ubuntu 10.04 lucid lynx server edition machine I have an Apache http server listening on port 80 and today I installed the Funambol server which added an Apache Tomcat server listening on port 8080. From within my lan I can reach both servers, but from outside the lan I can only reach the http server on port 80 and not the Funambol server on port 8080. I get a time out message instead.
In my router I have setup port forwarding, such that both ports 80 and 8080 get forwarded to my server machine. Must Tomcat be told to listen to external requests? Is my server listening on port 8080 only for requests inside the lan? Or is there some authorization that fails when I try to visit from outside my lan?
Here is some netstat output, I don't know if the differences between the 80 line and the 8080 line are relevant:
Code:
remon@compaq:~$ sudo netstat -nlp | grep 80
tcp 0 0 0.0.0.0:8009 0.0.0.0:* LISTEN 1778/java
[Code]....
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Jul 13, 2010
I'm having a bizarre problem with FTP transfers from my CentOS 5.3 boxes, All of my CentOS boxes appear to be limited at ~10kb/s when connecting to any FTP server outside of our network. We have no network infrastructure which would cause this, however when I use a windows based machine it is able to connect fine.
I took my laptop running Vista, and rebooted it onto a CentOS 5.3 LiveCD, and same issue.
I have checked our iptables, cleared the rules, removed the kernel modules, checked CBQ/TC it looks like nothing is limiting this. Also, other protocols work fine. Both the windows and linux boxes used passive transfers for it.
Is there anything other than iptables/CBQ which would be on a out of the box install of CentOS I should check? Is there any kernel settings for NAT connections which may cause this?
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May 18, 2010
Finding the process that is using a certain port in linux
I have an Ubuntu Server setup, where I'm trying to set up a daemon that wants to have access to port 8080. When I run the command, the error message says it's being used by another process. But which one, it doesn't say. How can I go about finding which program uses this port?
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Nov 4, 2010
Currently my home internet provider does not allow services on ports 1 to 1024 but allow the use of high ports to whatever users want to do and I was wondering what ways are there to mask my webserver @ ip:8080 and yet maintain the servernames ? For example currently if I use myexample.com:8080 it will open just fine but I know there some ways to make it look like if port 8080 never existed, one example of this would be using a proxy server somewhere else to redirect the access but I don't have one available nor money to use for this.
In the above case what would happen is that when user hitted the proxy server it would redirect and query my server so user would never know 2nd server existed at all. Another way would be creating a page somewhere else and put your site as a iframe or frame which would hide it but may be a problem to some browsers etc...
So I belive the question here is what options do I have to mask my server at 8080 to look like a transparent webserver? While I do know this seems a bit technical I belive the place to ask this question would be here instead of serverfault
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Feb 8, 2011
I will be setting up a web server at my house. It will be a simple page for my family to keep in touch and maybe some other stuff. Here is the problem: I believe my ISP blocks port 80. So when setting up the firewall and it list the normal port 80 am I able to edit to say 8080? I have a ddns already setup for my router and I am waiting for an email back from DynDNS.com on setting up a new domain to forward to my already setup hostname. I just need to get everything redirected to another port beside 80.
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Jul 20, 2010
I am having a problem.I use Ubuntu 10.04 server edition.Two computers on LAN one with Public Ip A other with local (Class C IP)say it BWith a third computer in same subnet I can access a TomCat application running on B as http://Ip of B:8080/applicationI want to use A as a Reverse Proxy for this application to be reachable from internet.So on Googling I came across some thing known as mod_ajp I enabled that on my Server A asa2enmod proxya2enmod proxy_ajpa2enmod headersbut after that I am not able to understand as how do I define vhost to be able to forward HTTP request which come on A as www.myserver.com/appto B which I can see internally as http://Ip of B:8080/application so Tomcat on B handles this.
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Jul 11, 2011
I am struggling with some issues Apache-tomcat is running fine, and port:8080 is also LISTEN but when am tiring to access the tomcat web_page is not up ,why ?
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Jan 14, 2011
Due to a ton of research I believe I now understand the output of ps, top, and free better than ever, and also have a relatively decent grasp on memory management (virtual address space, etc.) than I ever did before. With that being said, my server is super low on available memory and I can't make 1+1=2 on why it is. I suspect it's Tomcat/JVM (which I admittedly know precious little about). I am rebuilding this server (for a number of reasons) and plan to install 8GB but solving this mystery is key to supporting/promoting my design plans.
Relevant info So, I have very little memory left, I am swapping pretty hardcore, and even though I suspect it's the Tomcat/JVM stuff, it sure doesn't look like it from the memory tools. For that matter though it looks like "nothing" is using memory, or certainly not enough to cause such a low memory problem. The server was rebooted 24 days or so ago because it actually ran out of all virtual memory. How do I solve this mystery? Am I using the wrong tools? Am I misunderstanding my tools? What can I do to track down the processes depleting my memory?
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Jul 13, 2010
I am setting up tomcat server on my Centos 5.5 machine. I've been advised to run tomcat on 8080 as non root user and redirect traffic to it from port 80.
I searched and found the following iptables commands for this:# iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT -to-ports 8080
# iptables -I INPUT -p tcp --dport 8080 -j ACCEPTI have a doubt:
Tomcat is not accessible via port 80 without the second command. But the second command opens 8080 and makes it accessible over the internet (tomcat is accesible via both: www.<website>.com and http://<ip address>:8080). This doesn't seem right. Is there some simple (iptables) way to redirect traffic "internally" from port 80 to 8080 without having to open 8080 to the internet.
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Jun 6, 2011
I'm trying to open port 8080 on my application server. I've included it in my iptables; however I still cannot access through ssh nor putty and it doesn't show up when I netstat either.Here is my iptables-config:
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -i eth0 -s xxx.xx.x.0/24 -j ACCEPT
[code].....
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Sep 9, 2009
I have one server with Jboss and Tomcat installed, I have to start these servers manually everytime I do reboot the server.How I could do to start Jboss and Tomcat automatically, when I do reboot the server?
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Feb 25, 2009
I have installed CentOS 5.2, apache tomcat 5 already included, How can I upgrade tomcat to version 6 ?
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May 6, 2009
I am trying to setup Tomcat on CentOS 5.2,This is that ive done so far...Installed Apache, which works fine and I get the "Apache 2 Test Page powered by CentOS" Did this
yum install tomcat5 tomcat5-common-lib tomcat5-jasper tomcat5-jsp-2.0-api tomcat5-server-lib tomcat5-servlet-2.4-api
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Jan 7, 2010
A lot of activity is happening on our local server and I want to know which port is getting the most used and which daemon is using the port. I think it will be some modification of netstat command.
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Feb 5, 2009
I've installed Apache Tomcat--6 and even jdk1.6.I've even created a tomcat.sh file to start the serverautomatically and it includes the Environment variables also ($CATALINA_HOME & JAVA_HOME) for automatic startup.Next when i'm using http://localhost:8080 to call the server it shows unable to connect.I've tried changing the port no of tomcat in server.xml file. but still its not working.
-->Then i tried using--telnet localhost comand--it shows Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
telnet: Unable to connect to remote host: Connection refused
Here I'[m stuck i don't understand how do i make the localhost work.
-->If I'm giving telnet localhost 25 the sendmail server is working.But the 80 and 8080 ports are not getting configured.
-->I've tried adding the port and its name in /etc/services file but still its not working.
-->When I'm giving the command--/sbin/chkconfig --list--->Its shows: xinetd based services:
...
...
telnet on.what should i do to get my tomcat server work properly.
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Feb 7, 2011
i am not able to set up a crossover connection between 2 CENTOS 5.5 boxes.
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Sep 1, 2010
I installed eclipse and tomcat with package manager. Eclipse and tomcat are running but i can't see tomcat in the eclipse. I just see 'Basic' folder. That is a screenshot [URL]
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May 14, 2010
iSCSI Server, can I change the default port 3260 to other port ?
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Jul 30, 2010
My office is on migrating to UNIX system. I am configuring Centos as our server including some program will be running on it. But one of the problem is we use foxpro for operating some program on server directly. I can run that program on Centos using DOSBox. My question is how can i run that program on winxp client that connected to network through samba to that program on server? so my plan is just give the shortcut and link it to server. I have tried to open it but not work.
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Jul 27, 2011
I run a server that is connected to several other boxes in a private network (192.168.0.0). I have had no problems previously, but upon a reinstall of Debian squeeze I have no connectivity to the private network: a ping of other addresses on that network fail. Ping and connection to outside world is fine. This box is configured similarly to another on this private network which connects successfully. I have quadruple-checked all my basic information. I post my ifconfig below of the malfunctioning device, then the ifconfig for equivalent nic on a box connected succesfully to the private network.
Questions:
1.Could it be a cable problem? (I don't see how since the cables have not been changed I do not believe since my reinstallation).
2. What about the difference in the last lines of eth1 below and eth2 of the successful box. Is it significant that the bad eth1 reads Memory:fc3a0000-fc3c0000
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Apr 27, 2010
I am trying to configure tomcat on port 8443 using the following document [URL] instead of changing the port to 433 i kept it as 8443.i set the ip tables as follows
/sbin/iptables -A INPUT -i eth0 -p tcp --destination-port 8443 -j ACCEPT
/sbin/iptables -A INPUT -i eth0 -s 10.200.2.0/24 -p tcp --destination-port 8443 -j ACCEPT
service iptables save
restarted the tomcat service tomcat works on http://10.200.2.191:8080/ but it doesn't on https://10.200.2.191:8443 i did a little investigation of my own using nmap and found that the port 8443 is not open instead of making changes in the firewall table
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