Networking :: Opening Ports On Slackware?
Jun 20, 2010
How can I open a p[ort in slackware? I am "trying" to install and use Alfresco, a DMS that runs on linux platforms. So far that has been a nightmare........
Basically, according to their support tech, port 3306 is blocked. I dont really understand because I have MySQL DB server running and listening to 3306 on that machine and no problems at all... However, they recommended to try:
Code:
telnet localhost 3306
or
Code:
telnet <machinename> 3306
but it resulted in:
Code:
telnet connect to address 127.0.0.1: Connection refused
If I understand correctly , the Alfresco support is correct, 3306 is indeed blocked. But how come mysql is running fine then? How can I unblock this port? And finally, I need to specify that I dont have ANY type of firewall or anything like that because this machine is not connected to the web... So if I dont have a firewall , what is blocking the port?
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Apr 24, 2010
I have a fairly clean install of Debian 5.04 on a G5 tower and am having some local network sharing problems. The machine linuxG5 has an address of 192.168.1.4 and when I am logged into that machine I get the following output
silver@linuxG5:~$ nmap localhost
Starting Nmap 4.62 ( http://nmap.org ) at 2010-04-24 10:19 EDT
Interesting ports on localhost (127.0.0.1):
Not shown: 1706 closed ports
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
[Code]...
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Nov 7, 2009
I have recently bought a IP/PABX system with one FXO and one FXS port. I intend to install this on a remote site with a public but dynamic IP (can be resolved via dyndns though) and make calls via clients that are NATTed (inside a home router). I would like to seek advice on the port opening and the recommended settings. I have been reading a lot on VOIP and I am getting feedback that SIP calls are difficult to establish on a NATTed environment.
1.) SIP port 5060 UDP?
2.) RTP ports - what range should I open for this? I see some use 10000-20000 UDP
3.) STUN server - Is this something that needs to be configured?
How can I ensure that the other party can hear the audio just like a regular telephone? Is it really impossible to do if the client is behind a router in which it is using a Private IP Address? What other network configurations needs to be done?
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Aug 27, 2010
I have searched the web for this answer and i can't find it. I'm using Shorewall for my company firewall and all is working well. But i need to tweak down a few problems that i have. Employees have internet connection over a proxy server (http and https traffic), but some do need to connect to other ports not through proxy but directly. I want to add a exception to the rules. For example i want to allow that a local ip can connect to a predefined ip on the net to a specific port. All my attempts have failed.
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May 12, 2011
im working on a perl script to automate the setup on a few machines. Does any one know how to open ports using perl?
ps: The systems are redhat so id be editing the iptables file..
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May 26, 2010
how I can set up something to automatically open port 119 at 10pm and close it again at 3am..
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Aug 30, 2010
I am trying to open a tunnel for a friend of mine who's isp has blocked a bunch of webpages, so I was thinking I would learn how to since it might come in handy in the future Anyway, so I looked at a couple of videos about going in to network settings and changing the setting to manual and write down the desired IP (in my case 192.168.0.137). Then I went into my router (it's a D-link DI 524) and tried adding my static IP as the DMZ computer. I then restarted, everything looked fine, the router saved the settings and the eth0 still hade the information saved so I wanted to try it out. I just googled "try my ports" and I found a website called [URL]...But no ports worked for me.. I tried double checking everything, checking for errors. I couldn't find anything so I'm guessing you might have a clue!
EDIT: It seemed I had to have a program that actually used the port for it to work.. It's working anyway, so if you could move it to [SOLVED] I'd be happy
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Apr 20, 2010
How do I open ports 5198/udp and 5199/udp on a slackware based firewall?
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May 26, 2011
I'd like to set up a fileserver for myself and a few trusted individuals. I'm computer savvy and I use various linux servers frequently for work, but this is my first time trying to setup my own. Is it possible to have a Samba server setup so it is both secure and facing the Internet? Two questions:
Will opening Samba ports make my default Ubuntu server particularly vulnerable to penetration? More than having an SSH server running? Does Samba/ can Samba be configured to encrypt traffic or is it sent plainly? If so, does Windows and Mac support this secure communication?
If not, what would you suggest? I'd like to achieve something like a network drive and at a difficulty level that my parents could use this if they really wanted to. I will be storing things like financial information and tax returns, but no weapons-grade secrets.
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Jul 20, 2010
I'm using slackware 12.1 for some time now and this morning (kind of the first day of my winter break) I decided to fix an old USB pen drive to save some docs... (bad idea #1). I had some trouble deleting some files. Slack kept telling me that the files weren't there, so (probably not the smartest decision ever) I decided to "format" the tiny thing. (bad idea #2). Cfdisk wouldn't do it and I ended up on fdisk. (bad idea #3). I thought I was formatting 4 partitions in the same pen drive which now I think might have been my four usb ports. After that, no USB Ports are working at my computer at all. I even boot slackware 13.1 from a dvd and still couldn't get any USB working. Rc.hotplug is nowhere to be found.
At the end of dmesg, I get:
usb 1-7: new high speed USB device using ehci_hcd and address 2
usb 1-7: device descriptor read/64, error -32
usb 1-7: device descriptor read/64, error -32
usb 1-7: new high speed USB device using ehci_hcd and address 3
usb 1-7: device descriptor read/64, error -32
usb 1-7: device descriptor read/64, error -32
usb 1-7: new high speed USB device using ehci_hcd and address 4
usb 1-7: device not accepting address 4, error -32 .....
usb 1-3: device not accepting address 21, error -32
I didn't mess with this kernel and everything was just great 4 hours ago.
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Jan 9, 2010
I think I've finally settled on Slackware, but I kept missing Arch or FreeBSD for some reason. Last night I realized it's the abs/ports systems they have. I love the freedom to rebuild any package from source so I can configure build options and not worry about how packages from third party sites were compiled (missing features, patent restrictions, etc.).
SlackBuilds.org is awesome, and according to that site Pat uses SlackBuilds to build the official packages. Wouldn't it be great if there was a /var/slackbuilds/ directory with subdirectories for each software set for the officially supported software and then a subdirectory for each category on SlackBuilds.org?I would really like to see this in Slackware some time. It would help organize all the available software in the official sets and SlackBuilds.org and make it easy to compile anything. Other software would, as usual, be downloaded from third-party sources and simply installed that way.
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Jan 19, 2011
For some reason I'm unable to connect to anything through these ports and I can't figure out why. I have to use a proxy address to access my irc channels.I've ruled out my router by disabling all router network filtering, so it must be something on this computer.
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Jan 28, 2011
I am trying to run a minecraft server from my slackware machine, but i am having an issue.The port for minecraft (25565) is open on my router, but it is reported as closed by all the open port check tools. I noticed that the same was happening for my VNC server. the port reports itself as closed until i actually open the vnc server software. for examplei check the vnc port (5900) when the vnc software is not running, and it is reported as closed. nmap localhost gives the following:
Code:
Not shown: 993 closed ports
PORT STATE SERVICE
[code]....
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May 16, 2011
Since I installed Slackware 13.37 I'm having problems with Okular. Whenever you open a .pdf file, it crashes immediately. Opening other file formats works fine.
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Aug 15, 2010
Kernel 2.6.21.5, GNU (Slackware 12.0).
KDE 3.5.7.
KMail 1.9.7
In the x.org home page, there is a link 'the xorg mailing list'. If I click on this link, then the KMail Account Wizard (window subtitle New account setup) opens and I am compelled to create a new account. But I already have one, and I send and receive mail with this account. Can it be that this behavior is induced by x.org? I don't feel like opening a second account.
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Jun 28, 2010
Firefox does not open under any circumstances, it's allocated in the memory and has it's process ids, but the browser is not opened at all. There's not terminal output when ran in terminal, no dmesg, debug..., nothing.
The only info I could give:
Terminal try:
Code:
Code:
So, I really don't know what's happening, if someone have some light to shed, I'd be glad.
Slackware 13.1 32-bit x86, package is mozilla-firefox-3.6.6-i686-1.
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Feb 11, 2010
I did a clean installation of KDE 4.4 Alien bob`s packages and when I open the dolphin, for example, appears this error:
The icons and directories are all on blank...
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Dec 17, 2010
I'm writting an app for desktop and embedded linux and I need to get information about the multiserial port, and I need to know which port is been used (by a printer, por example).The multiserial I'm using is an Altera Corporation Device 0004, and I just need to tell how many ports are there and how many is been used.
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Nov 20, 2010
i am using Fedora 14. Once system get hanged during opening a video file so I had to restart the system by pressing restart button. But after restarting there are few problems appearing like system monitor not opening and Thunder bird opening but not showing any folder including inbox.
---------- Post added at 04:54 AM GMT ---------- Previous post was at 04:42 AM GMT ----------
Looks like SElinux has stopped working
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May 10, 2011
I can successfully forward a port via:
PHP Code: ssh -L 5900:localhost:5900 test@192.168.5.1
how do I forward several ports at once. This is a wrong example but:
[Code]...
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Feb 7, 2011
One of the apps I would like to try out is usenext.Selectint the download for the right version (Linux - Suse, Red Hat, Fedora) I get the rpm file.Either opening this straight away or saving then opening it comes back with the following errors:
usenext-5.27-1.i386 requires mono(gdk-sharp) = 2.10.0.0
usenext-5.27-1.i386 requires unrar
usenext-5.27-1.i386 requires mono(glib-sharp) = 2.10.0.0
[code]....
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Aug 11, 2010
How can I tell if my USB ports are 2.0 ports?
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Apr 6, 2010
A few months ago I installed Ubuntu 9.10 on my girlfriends laptop, on her request, as she didn't like Windows any more. Since then the internet connection periodically slows down due to too many open ports/connections. Always when this happens I call our ISP and usually there are around 80-200(!) active connections to various IP's.
She is not downloading torrents or anything.
She only uses Firefox and a few open tabs as people do.
Skype is open.
Wireless internet connection.
I am thinking either Ubuntu is updating more or less constantly or the ports/connections aren't closed "after use".
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May 8, 2010
Does any body know how to enable ports in ubuntu 10.04?
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May 12, 2010
I'm trying to VPN in somewhere and it doesn't like any outbound connections. I'm doing this for RDP, so can I somehow restrict the VPN connection to only be using the RDP port?
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Jun 12, 2010
I dont know how, but somehow all the ports on my comp appear to be blocked except for 24, for ssh and 5900 unknown. I can connect to the network, but as far as I can tell, I'm powerless to do anything. No webpages load, I'm typing this on my phone.
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Aug 12, 2010
I have ssh running on port 22 and that is the only thing I want in/out of this particular box (ssh, scp).But when I use iptables to set the default policies for INPUT, FORWARD, and OUTPUT to DROP and then allow 22:
iptables -I INPUT -p tcp --dport 22 -j ACCEPT
iptables -I OUTPUT -p tcp --dport 22 -j ACCEPT
ssh stops working.
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Dec 16, 2010
I was following the directions over on the page How to watch Hulu overseas without a proxy server and got to the section about blocking ports, which I need to block port 1935. I figured this would be easy, as the mac instructions are
Code:
sudo ipfw add 0 deny tcp from any to any 1935
sudo ipfw add 0 deny udp from any to any 1935
and the Windows instructions are practically a book in itself. Since this page was lacking instructions on how to do it in Ubuntu, and ipfw seemingly doesn't exist in Ubuntu, how do I block the ports
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Apr 5, 2011
I'm trying to open my ports all the way, but for some reason, I am unable to do so. I've forwarded the ports I want open in my router (I switched between two routers to make sure), I made exceptions in Firestarter, and I even added UFW rules, but when I use pretty much any and every port checking tool out there, the ports eithere back stealthed or closed.I'm not a complete noob, and I'm not an expert, but I'm p sure I'm doing everything right, seeing as there isn't much to screw up.The reason I'm trying to fully open these ports is because I'm getting this dumb 'No Incoming Connections
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May 14, 2009
Since there was no response on my other post which i spent about a hour writing, ill go for something simpler. I run this on my server
Code:
# set default policy for the NAT table
iptables -t nat -P PREROUTING ACCEPT
[code]...
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