According to firestarter, there's some process on my machine that keeps trying to access port 1900, every two minutes exactly. I don't know what it is. I've tried netstat -tnlp, but it doesn't show up. Presumably I have to do it at the exact second the process is trying to access the port. Does anyone know of a bash subroutine that will keep doing netstat -pl until it finds a process on port 1900?
View 4 Repliessudo ssh -L 750:192.168.123.103:873 username@192.168.123.103It does exactly what it's supposed to do, but how do i edit / remove this rule?Is there some config file where i can alter the forwarding? How does it get stored?Im using Ubuntu 10.10Server Edition (allthough i recon it would be pretty much the same across all versions
View 5 Replies View RelatedIs there any way to verify if packets being trafficked over a certain port are valid for the service you want to use this port for?
One obvious example that probably clarifies my question:
When I open port 443 (outgoing or incoming) for https/ssl traffic, I don't want this port to be used for say openvpn traffic.
Thus: when someone wants to surf to a website with https, it should be ok but if someone wants to connect to his home openvpn server over that same port, it should be blocked.
I'll explain this in one sentence: Is it possible to program a port-binding shellcode in which people across the Internet can connect to, without being thwarted by the router blocking their data because the port its bound to doesn't allow port-forwarding
View 2 Replies View RelatedAs it stands I have a small home network operating behind my modem/router. Some of the ports on this are forwarded to my PS3 for gaming but I was looking at forward some for my file server.
At the moment I've forwarded port xxx22 to port 22 on my server for SSH for instance. ANd similarly 21 for FTP (although it doesnt seem to want to connect for any more than a few seconds using that). What I was thinking of doing was placing a small website for a handful of ppl to use on the server too and port forward again - xxx80 to 80. It works just fine but I'm a little concerned on the security front.
As I've moved the port to something different from the outside world I'm presuming I will have already cut the potential for malicious folks to wander in but is there anything else I should be doing? At the moment there's no firewall operating on the server, usually as its hidden behind the modem/router. But if I open this thign up more permanently what should I be doing? I've read a few articles on it but I'm always left with the overwhelming thought of "Thats if theres no firewall in my router" as they just seem to do the same.
Sudo says it cannot find the apt-get command:
Code:
lugo@ubuntu:~$ sudo apt-get install --reinstall gnome-applets
[sudo] password for lugo:
[code]....
I tried three versions of linux:
1)9.10
2)10.04
3)11.04
My PCI wireless card was working ONLY on 9.10. Why? I would like to update to newest version, but i cannot imagine my life without internet connection.
I am running Ubuntu 8.04LTS x64 on a Dell Poweredge 1900 with a Perc 5i RAID Controller. There are 3 500Gb SAS drives in a RAID 5 configuration. The Kernel is Linux dtpfs 2.6.24-27-server #1 SMP Wed Jan 27 23:39:33 UTC 2010 x86_64 GNU/Linux Approximately once every 1 - 2 months I have a problem where the disk usage starts to rise for no apparent reason. When I run df the usage grows steadily over 2-3 days from 26% to 100%. At this point Samba reports that the disks are full. Baobab does not report the additional usage and the tape backup ignores the 'extra' usage and just backs up what was previously there. When I reboot the machine the usage is set back to normal and we can continue.
View 2 Replies View RelatedI'm developing a serial port application under Lazarus using the SunaSer code library.
The application reports an error indicating that "the Port is opened by another process".
What command can I execute in a Terminal session to determine what process has the USB-serial port open?
The download bar on my conky overlay (${downspeedgraph eth0}) seems to be maxed out constantly. This is when everything should be idle with no downloads happening in the background (at least non that I know about).Are there any command line tools that can tell me what process is using my ethernet port?
View 7 Replies View RelatedI need to setup a Intel Xenon power edge 1900 server, which fedora version (10 or 11) suits it best and whether I should go for 64bit or 32bit (If I go with 64 bit some applications wont support it). I also have another issue, currently on another Intel Xenon power edge 1900 server on which Fedora 9 32bit version is installed, tough the server has 8GB ram, fedora can access only 3.2 GB. How can I solve this issue and will it repeat in the new server where I install fedora(10 or 11).
View 1 Replies View RelatedI just bought an SSL cert and installed on my Apache server. When I restarted something went wrong so I had to change some config stuff and when I tried to restart apache for the second time I got this:
$ sudo apache2ctl start
(98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
Problem is that apache isn't running. For some reason there is something hogging my tcp 80 port, preventing apache from starting properly. How do I fix this? Is there a way to "free" a port?
I have made out a little software as to talk with my friends through network . there are two parts : one is listening to receive messages ,the other will send messages. but the firewall is bothering .so I want to know if I can make my software listen to port 80 while apache is also running .
View 11 Replies View RelatedHow can I find out which process is listening on a port on linux?
View 5 Replies View RelatedPossible Duplicate: Finding the process that is using a certain port in Linux I'm using Ubuntu Linux 11.04. How do I write a shell script expression that will find the process running on port 4444 and then kill the process?
View 4 Replies View RelatedI run openSUSE 11.2 (kernel 2.6.31.12) and I use Wine 1.1.38 to play World of Warcraft from the konsole terminal application. For the most part this works okay, but there is one small issue that continues to annoy me:
Look at your keyboard (assuming standard QWERTY no-name keyboard) - see the key just left of your Backspace key? That key is only partially working for me in WoW. I cannot bind it to any action bar button in-game, with or without addons enabled. For some reason the key works fine when entering text into the chat console though.
I have used xev to get a bit of data on the key itself - not that it is that informative to me though, but the absence of the issue when playing WoW through Windows would suggest that it is somehow endemic to my Linux configuration:
Code:
KeyPress event, serial 34, synthetic NO, window 0x4a00001,
root 0x1a7, subw 0x0, time 6474080, (159,-10), root:(1364,15),
state 0x10, keycode 21 (keysym 0xfe51, dead_acute), same_screen YES,
XLookupString gives 2 bytes: (c2 b4) ""
XmbLookupString gives 0 bytes:
XFilterEvent returns: True
[Code]...
I've dled some CDs. Each one is a single FLAC wich i can play, But surely i should be able to access individual pieces recorded on the CDs?.
View 1 Replies View RelatedIm trying to limit the diskspace users on the system may consume, and i found quotas (im a total linux noob). But when i try to set it, no matter what i set it to the maximus is 2 GB. Now... i need quite a lot more than that. One user should be able to use 1900 GB and the other 600 GB. How can i fix this? Im using ubuntu server 10.04.
View 9 Replies View RelatedI need disable usb port access in ubuntu9.10. how to disable usb port in ubuntu9.10
View 9 Replies View RelatedI have the default to deny all. The only rule I have in there is:
Code:
To Action From
-- ------ ----
[code]....
Watching Logs and event reports,clearly something is trying to use my 40292 port.I tried to find out more about the Port, by temporary starting FireStarter.Unfortunately my search kept me stranded with the same question after 3 hours. Does anybody here knows any thing about that certain port usage?
View 5 Replies View RelatedUp to now I've been playing with Ubuntu whilst storing important data elsewhere for about 2 years. Now I'm ready to move to Ubuntu completely but want to address my security.I'm currently using a desktop and server behind a hardware firewall / Internet router. The router has DynDNS and forwards port 80 to the webserver and a port I picked at random to the desktop 22 for SSH with private keys. SSH passwords are disabled.
The first question is, is there a danger of running different security levels on the two machines? I don't care about the server, there is no data on it so I currently forward port 80 and am considering forwarding ports 631 (CUPS) and a port for LDAP. Will this effect my desktop (which has info I don't want to loose).The next question is whether port forwarding / hardware firewall is actually a safeguard against attack.
Tor open port 23 for telnet. Is this normal ?
View 3 Replies View RelatedI'm trying to SSH into my home computer from a remote location outside of my house's LAN and can't figure out remote port fowarding.
The guide here says to use the following:
Code:
I've tried connecting to my home computer through many combinations of the syntax listed above, read the man file, and looked online for help. But can't find out the proper syntax or a good guide that isn't written for Windows users using Putty.
Let's assume for the sake of simplicity that the public IP address of my home SSH server is 123.123.123.123, the private IP address of my home SSH server is 192.168.1.100, my home SSH port is 2222, and the SSH port at my current location is is 22. How would I write out the command?
Every time I try to connect I get a "connection times out" error.
I'm using a local proxy server VPN'd to another network.
How do I setup either Firestarter or Gufw/ufw to ONLY allow in/out from ONE port? (The one port the proxy uses)
Ex: Firefox is proxied to 127.0.0.1, all ports, and then the proxy picks it up, and sends out on port xxxx, and recieves on port xxxx, then sends back thru 127.0.0.1, back to Firefox.
Any setting/rules I've treid on either Firestarter or Gufw kills the proxy>VPN (Proxy won't connect to remote network)
Addendum: If I start the proxy FIRST, then the firewall, all is good. I'm thinking the proxy uses a port to connect with remote network first, then switches to my configured xxxx port...hmmm
I must be behind a firewall in this ubuntu 9.10 karmic. i need to access the Standard client TCP port. how to put a port into the firewall so that it is not blocked?
View 2 Replies View RelatedI'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 am running a ubuntu server for home use and am currently hosting a website for testing urposes I am worried because I have to leave my port 80 open for this to work. an Idea I have is to make it that port 80 is read only.
View 9 Replies View RelatedI have a question about GNU-PG security for email clients. I have read that this is the best email protection available. I have it among available Ubuntu packages, too, but when I wanted to use it the registration process asked my real name. considering full or the best possible privacy claim, why real name? or is it ok just not to give the real name? I am not advanced in cryptography, could/can this not be avoided?
View 4 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