I am trying to access my desktop remotely via VNC. I can already access my computer using ssh, and I managed to open port 22 on my router:
Now I must open port 5900 for VNC, and I think I did exactly the same thing:
Using [url](a port check service), however, my port 22 is OPEN and my port 5900 is CLOSED. Yes, I restarted my router after making the changes.
I'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.
I have successfully connected to my ubuntu server from XP using VNC over SSH from within my internal network.But when I try from an external network I can SSH but VNC times out. Using netstat I see vino server listening on 5900. Using ps -ef I see vnc and vino-server and vino. In auth.log I see :
Feb 4 17:07:25 DellD600 sshd[8754]: error: connect_to 123.243.**.** port 5900: failed.
Feb 4 17:11:14 DellD600 sshd[8754]: error: connect_to 123.243.**.** port 5900: failed.
These entries coincide with when vnc times out, after a minute or so. I have tried realVNC and TightVNC with similar results. Im connecting specifying localhost in VNC and port 5900 in and out in putty - same as I do when connecting locally. The error messages dont give me a lot to go on. Im assuming the problem must be on the ubuntu server itself since Im getting in through SSH and hitting the logs ?
I 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 RelatedIf 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 RelatedI 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?
Ok 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.
I'm running a Geforce FX 5900 Ultra with nvidias 173.14.27 driver. I'm running slackware 13.1 with kernel 2.6.35.5.
I get a horrible slowdown which is noticeable in emulators such as bsnes and kega fusion. I also think it's responsible for other issues that involve zsnes flickering like mad and hanging. Zsnes will actually crash if I select any filter plugins with opengl output modes.
Kega Fusion slows down to a crawl (we're talking 10 fps) immediately before loading a rom. Playing a rom makes it even slower.
Bsnes has the same kinda slowdown as kega fusion (even worse since it's so cpu intensive) when I activate scanlines or any type of output filter with opengl. Otherwise with no filters and just plain opengl it seems to run fast like it should...
Gens-GS doesn't seem to enable any filters in fullscreen mode... They work however in windowed mode with no slowdown issues...
I've compiled and installed SDL 1.3 from hg repository, then recompiled bsnes just to test it with newer SDL. Unfortunately the problem persists even with a newer SDL version which thankfully for me means I can revert to the older stock SDL without having to recompile everything else haha!
It's funny because I thought these issues were related to the emulators and not the video card drivers. I had these issues for a couple years running ubuntu and trying other distros. When I installed Slackware 13.1 I decided to try my Radeon 9700 pro and kega fusion no longer had this slowdown issue! I switched back to my Geforce and installed nvidia's drivers and immediately had slowdown issues... I'm gonna switch back to the radeon card and test the other emulators but otherwise it'd be nice to know if there's a solution to this issue...
Ok I installed my radeon card: nvidia-installer --uninstall, then updated xf86-video-ati from 6.13.0 to 6.13.2. Even though kega fusion runs fine I get even worse problems with everything else! LOL so I'm going back to my geforce card.
I just installed apache. I didn't change the configuration files at all except add Quote: # added servername to avoid the could not determine fqdn error ServerName myname.homelinux.org to apache2.conf. Apache is working locally (I get the `it's working' screen at [URL]). However, I cannot access my computer from an external computer by going to [URL], which is equivalent to [URL] -- [IP address changed slightly for privacy] Here is a screenshot to my router settings. I disabled the filter for port 80 on the router. here shouldn't be a firewall, unless it's automatically installed with ubuntu 10.4. (sudo ufw status says `inactive'.)
I checked my ports from [URL] and indeed port 22 is open (ssh-ing into my computer externally is not a problem), whereas port 80 is closed. What step in opening up port 80 am I missing? (I also made sure my ISP isn't blocking port 80.)
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)"
I heard when running Ubuntu I need to set it to open with one port. I had a friend ran Ubuntu on his laptop at school and had other Ubuntu users at school got access to his computer, is that possible?
View 2 Replies View Relatedneeding to open a port in ubuntu, then use it for my VirtualBox Pc.My VirtualBox is running - Windows XP I have a router connected to my network - Linksys WRT54G Now lets begin, I have tried opening via there router homepage. But when I go to [URL] and test port 4900 is still says that it is closed.
View 3 Replies View RelatedTor open port 23 for telnet. Is this normal ?
View 3 Replies View RelatedI 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.
No matter what I do, i cannot get port 3100 to open. This is for a new MMO i am CBT on. I know it works on windows because that is how I installed it and played. But I prefer being on Linux. Majority of all other MMOs work fine. Just this one has to have udp 3100 open.
The following is a rough output of all the methods I have tried with no success. As you can see I have done some extensive research first before posting here.
Now its become a lil bit of an obsession.
I cannot get the following command to work:
And yes I tried the "spaces" in different places thinking that was the prob. So i cannot see if 3100 is in the list or not
I eventually turned on the firewall "ufw enable" add the port there, and output:
Some references
[url]
Firewall stuff: [url]
I even manually went into the router and turned it on there.
I add these lines for startup purposes.
Do I need to do something in "wine" ?
I feel i am starting to repease myself
results of "iptables -L"
Code:
Is it possible to check if a particular port is open for a particular ip in the terminal?
View 4 Replies View RelatedI 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.
I've recently installed 10.10 server edition, and I must say it was a pleasant suprise, it's just the way I like it. I use it as a squeezebox-server. But I've run into a problem with the firewall. I did a portscan, which told me there are more ports open then I've told UFW to open. Among which port 25 and 119, when I telnet from another PC to those ports, the connection gets accepted, although there is no answer to any commands (as expected, there's no mail server running). Iptables print-outs also don't mention anything about the respective ports or a daemon that could be responsable, and the same applies to "ps -e" or "ps aux".
Iptables seems to be working, when I remove the rules to allow samba to work, I can't reach the shares, and when I insert them again I can reach the shares. "sudo ufw deny from any" as last rule doesn't change anything either (deny incoming is default (although I never issued the command "ufw status verbose" says it is) so it shouldn't, but ports 25 and 119 shouldn't be open either).
I hear that it's a bad idea to edit iptables by hand.
I want to open 443. Quote: iptables -A INPUT -p tcp -m tcp --sport 443 -j ACCEPT
iptables -A OUTPUT -p tcp -m tcp --dport 443 -j ACCEPT
Since I'm not at the box, I can't use the nifty GUI.
How might one do this via terminal?
OS: CentOSv5 (RHELv5)
i have centos5.3 installed with iptables firewall, i want to open port 5222 as i want to access application which uses port 5222 from internet.
View 14 Replies View Relatedfrom my windows box at work i can only connect to some ports (pop3, telnet, web)also, i can connect to port 1234 (as an example)everything else is blocked.I'm trying to connect with Microsoft Terminal Service Client to my linux box (cant install any vnc)but haven't found a way to make Gnome remote desktop to listen to the port i need (1234).I'm using fedora 13.anyway, i would appreciate any advice on what software to use or hot to configure my Linux box get remote connections from windows box on that certain port.
View 5 Replies View RelatedOn our server port 25 is open for sending email. I want to open port 587 too in our firewall.If I have open tow ports 25 and 587 for out going email it is not going to make any problem? my server is Centos 5 I am using webmin to access to our server.
View 1 Replies View RelatedI am configuring an internal only IMAP server for archival emails. I am absolutely baffled why my connection is being refused. UFW is disabled and IPTABLES has a rule to allow all connections on 143 and 993. When I telnet this response is given:
Code:
telnet localhost 143
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused
Even nmap shows the port closed. Here is my iptables rule:
HTML Code:
-A ufw-user-input -p udp -m udp --dport 143 -j ACCEPT
Not really sure where to post this, so here goes... I installed apache2, php and MySQL via LAMP and everything seems to work fine but when I try to open the COM1 port to do serial communication via PHP, I get a permission denied error.
'mode com1: BAUD=9600 PARITY=N data=8 stop=1 xon=off';
$fp=fopen("COM1:","w+");
I've also tried using /dev/ttyS0 instead of COM1: but no luck. Anyone out there know what I'm doing wrong? I don't know if I need to set something up in apache2 or php or if the code is just wrong. I'm on an Acer Aspire One with Ubuntu's LNR 9.10.
How to open port for transmission or deluge to use torrents, 'cause any of both programs can download any torrent. I've searched on the internet and only find about open ports on hardware router, and that's weird 'cause Deluge on windows works perfect just after installing it and there's no need to open any port on hardware router.
View 1 Replies View RelatedI did a port scan on my own network and found the following port open on my Ubuntu:
Particularly, I have no idea what/why the following is open: 8081/tcp open blackice-icecap
I am getting the hang of IPTables.I've setup to open certain UDP ports but they simply refuse to show when I iptables -L.
iptables file:
$IPT -A INPUT -p udp --dport 13000 -j ACCEPT
$IPT -A INPUT -p udp --dport 13001 -j ACCEPT
[code]....
Transmission says my port is closed. If I google the problem, it just gives me advice on how to open a port in Windows OS. There's no firewall in Ubuntu 10.10 by default, right? There isn't any router used neither. I'm living in a dorm. I just plug the LAN cable in the box fixed to the wall.
View 3 Replies View RelatedSo, I've installed and configured OpenVPN on Ubuntu server 10.04, but I can't connect to it. When i try connecting from another ubuntu machine it's "connection attempt timed out" and i can't seem to fix it. I think the problem is that port 1194 (which i've configured openvpn to use) isn't open. I've created iptables rules,Here are the rules:
Code:
sudo iptables -L -nv
Chain INPUT (policy ACCEPT 1033K packets, 58M bytes)
[code]....
Did a fresh install of Ubuntu Desktop 10.10 64-bit on my Dell D630.
I installed the Samba and used GADMIN-Samba to configure. The networking area is as follows:
But I'm am unable to attach to the SMB share. When I do a port scan on the PC network address it shows the port for SSH open along with the random high number ports for web connections but not the port for SMB (445). If I port scan 127.0.0.1 it shows SSH, netbios-ssn, and SMB open.
I've tried adding a rule to UFW and disabling UFW but it makes no difference.
I'm able to connect to SMB shares off of my Windows Desktop, so I know my home router isn't filtering any internal traffic.