Ubuntu :: Port 6891 Shows As Closed Even Though It's Open On Router?
Nov 15, 2009My computer is DMZ'ed ports forwarded and stuff, and still this port shows as closed on nmap.
View 2 Replies
ADVERTISEMENT
OpenSUSE Network :: Firewall Yast2 Shows Ports Open, Nmap Shows Them Closed?
Jan 8, 2010I'm encountering a strange problem. I need to open and forward all UDP and TCP ports related to VoIPtelephony (5000:32000) in the Suse 11.1 server that's acting as router/firewall in our setup. The ports must redirect to a Asterisk server in the local network. (This server has the IP adress 192.168.0.3)I've opened ports in Yast (Firewall>Ports>Advanced) and putted in some masquerading rulesirewall>Masquerading):0/0,192.168.0.3,tcp,5000:31000,5000:310000/0,192.168.0.3,udp,5000:31000,5000:31000when I do a nmap localhost I get:Starting Nmap 4.75 at 2010-01-08 16:52 CETInteresting ports on localhost (127.0.0.1):
Not shown: 991 closed ports
PORT STATE SERVICE
21/tcp open ftp
[code]....
General :: TCP Port Shows As Closed / But No Firewall
Feb 18, 2010nmap 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
View 3 Replies View RelatedGeneral :: Port Just Can't Decide Weather It's Open Or Closed
Feb 18, 2010I 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.
View 6 Replies View RelatedDebian Configuration :: Cannot Open Java Socket - Port (9955) Closed
Feb 26, 2010I 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
Server :: Open SMTP Port On Router (which Connects LAN To Internet) Also Needs To Open?
Apr 14, 2010I 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?
Ubuntu Networking :: Open Port 22 In The Router?
Dec 16, 2010I have an n900 phone and I'm trying to ssh to my desktop but I'm getting an error:
ssh: connect to host 58.xx.xx.xx port 22: Connection refused
I recently started using a router for I wanted to connect to net even with n900. I've tried to open the port from the setup page of the router however it doesn't seem to work. (find below the screenshot of setup page).
I've tried to ssh through slackware I've got as a virtual machine and I have the same problem although I was able to ssh through slackware before I started using the router.
Ubuntu Networking :: Can Open Port 4444 In System And In The Router Of ISP
Mar 12, 2010how i can open port 4444 in my system and in the router of my ISP cuase i used it to download and i dont to be blocked from ISP
View 2 Replies View RelatedUbuntu Security :: Router Has Open 5900 Port And Can't Close It?
Dec 19, 2010I've recently been taking a look at my router settings and I've realized i have my vnc port open for some reason. I don't know how or why it got opened because I've only used vnc within my private lan. Anyway, the problem is I couldn't figure out how to close that port on my router, so I just uninstalled all the vnc software from my computer so it wouldn't act like a vnc server for anybody trying to access it from the outside. So, effectively, I cannot vnc into my computer from outside my private lan, but when i port scan my public ip, the vnc port still appears open.
I'm wondering if there's something i'm missing. I'm sure it must be something in the router that I haven't figured out... something that's keeping port 5900 open.
Fedora :: Access Router Settings - Open Port
Jul 30, 2011I'm curious is it possible to access your router settings. I'm trying to open up a port. I have done this in my firewall now I need to open up my port through my router. I'm using fedora 15.
View 5 Replies View RelatedNetworking :: Unable To Open Port In Router Or Firewall?
Jan 26, 2010I am trying to make a vnc connection from pc #2 to pc #1. Pc #1 is a debian pc behind a zyxel router (P-2602HW-D1A). Pc #2 is a windows xp pc another place at the internet.I have configured the zyxel router to forward incomming trafic on port 5902 to the local ip-adress of the debian box. The debian box is running a vnc server, listening on port 5902.But i dosn?t work.I have tryed to scan the zyxel routers ipadress on port 5902 from the internet, but the scanner says that the port is closed.The vnc server on pc #1 is working fine on the local network. I can connect to the server from a pc on the same side of the zyxel router.Is it deffenitly a router problem, or could it have something to do with debians own firewall?
View 2 Replies View RelatedUbuntu :: Video Display On Second Screen Shows Whatever Was Last There Even After Closed?
Dec 20, 2010I've had this problem for ages and decided to try to tackle it. It occasionally also occurs on my laptop but only intermittently. The video on the second screen seems to go haywire. On boot, it doesn't display the background image. It only will display a fading black and gray picture. Then anything that is put on the screen is captured like a screen shot on the background. It is just hard to know if things were closed
View 1 Replies View RelatedNetworking :: How To Open A Port - Failed To Open The TCP Port Number In The License
Jun 20, 2009I 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?
View 5 Replies View RelatedUbuntu Networking :: Port 21 Closed/can't Connect To Server With Ftp
Sep 21, 2010Wow, 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.
View 2 Replies View RelatedNetworking :: Shorewall: Port Forwarding Port Is Closed Even After Forwarding?
Dec 12, 2009I 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]....
Ubuntu :: Port 80 Closed After Upgrade From Hardy Heron To Lucid?
May 24, 2010I 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.
Programming :: Serial Port Becomes Unreachable After Being Opened And Closed Once?
Sep 22, 2009I 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?
Ubuntu Networking :: Set Up Dedicated Server For Source Games - Port Closed?
Jun 23, 2011I 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.
View 9 Replies View RelatedUbuntu :: Kernel Spamming Logs Full "display Port Opened" And "display Port Closed"?
Apr 4, 2011I 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]...
General :: DMA Open Or Closed For Better Media?
Jan 10, 2011recently my windows XP pro crashed and so i reformatted wth fedora. when on windows i had some movies that played fine, like .aac or .mkv with no lag or bad pic. so now on fedora, with the same hardware ill use VLC or K media and its terrible. voices are off, grainy, stops a lot. i installed easylife to get the necessary plugins but still looks like garbage.so i was told to try and open my DMA to get a better experience.
View 4 Replies View RelatedUbuntu :: Use The AWN Notification Area, But It Won't Open Unless The Normal One Is Closed?
Aug 18, 2010I want to use the AWN notification area, but it won't open unless the normal one is closed. How do I remove the notification area?
View 3 Replies View RelatedServer :: If Forward A Port In Iptables, Does The Port Have To Be Open On The Firewall
Aug 5, 2009If 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?
View 4 Replies View RelatedOpenSUSE :: How To Remain YAST2 Open Not Closed After Installing One App
Feb 16, 2011I like to select one or two appz then install once a time.But each time when YAST finishes an installation it close without asking.If I want to install another appz in a few seconds,another refreshing repositories is needed.I have to wait a minute.It's quite annoying.Anyway to remain YAST open and let me close it manully?
View 4 Replies View RelatedUbuntu :: Netstat Shows No Proper IP (0.0.0.0) For Port 22?
Mar 29, 2010had some problems with setting up Linux on my virtual machine as I cannot connect with putty (connection gets refused) to it but now I guess I figured my problem out, just not the way how to solve it .If I do netstat -nap | grep :22 I get the following output:[[ see attachment ]]
Shouldn`t there be some kind of LAN IP instead of 0.0.0.0?Does anyone have a possible solution for that? Checked iptables and such, they are not causing it.
Ubuntu Networking :: Wireless Shows Connected, But No Internet/Can't Ping Router?
Sep 14, 2010So I installed 10.4 on a new Toshiba Satellite L645DWhen I connect to my wireless at home, the Network Manager shows that I am connected but I can't reach any websites via ping or firefox. I also can't ping my router. I also don't have wired access working at all.iwconfig shows connected to correct ESSIDI can ping localhostcan't ping google:
Code:
ping: unknown host www.google.com
can't ping my router (192.168.2.1):
[code]....
Software :: Does Open Process Continue To Work If Putty Session Is Closed
Apr 14, 2010I am downloading a big file on linux VPS, and I am connecting remotely via Putty to do it? Once I initiated the wget command to download the file, if I close the putty window, will wget continue to download the file in the background even though the session is technically closed?
View 11 Replies View RelatedFedora Servers :: Samba Shows Up Is Router And Home Network
Aug 4, 2011Linux and have a western digital server (my book world edition) I can access it with Ubuntu 11.04, just by downloading Samba and then by clicking on network and the server shows up, but with Fedora 15, after I have installed Samba, I click on network and all that shows up is my router?
View 1 Replies View RelatedCentOS 5 :: Open Port 7001 But It Doesn't Show That Its Open?
Sep 26, 2010Ok For some reason I open my ports in security and firewall. I open ssh and other ports and port 7001 for example but when I go to check to see if they are open or try to connect to them. It shows that they are still closed. I am using - [URL] Also yes my ports are open on my router. I know my router works fine with opening ports because I have shoutcast setup on another computer with xp that is currently running. I am willing to pay for who can ever get this fixed for me...
I open the ports in graphical mode.
Debian Configuration :: Samba Shows In Port Scans
Sep 2, 2010I just noticed after installing a new server with samba that a portscan will show the samba used ports. This server has two interfaces, a world address eth0 and an intranet eth1. The samba ports show in scanning either interface, even after I changed samba to listen only to the intranet (192.168.x) address.
I am concerned especially about the 139 and 445 ports, which could attract a lot of garbage traffic.This is Debian 5.05 default samba installation.Otherwise similarly installed Ubuntu box with two interfaces does not show samba at all, even though smbd is running and working just fine.
Ubuntu Networking :: Router Port Forwarding For Ssh
Aug 22, 2010I have logged into my router and set up port-forwarding on port 22. I can log into the machine fine from a machine on the local network using the machines internal IP but when I try to log on from a remote machine using my router's external IP or my DyDNS host-name I get a message saying "connection refused" or "connection timed out." I have configured port-forwarding on the router and the firewall rules says that port 22 is open but when I nmap my routers external ip it says that only port 23 and 80 are open. I am very new to linux and networking.
View 8 Replies View Related