Ubuntu Servers :: Named Is Listening On The Wrong Port?
Jul 11, 2010update:
Code:
luke@media:~$ sudo service bind9 restart
* Stopping domain name service...
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update:
Code:
luke@media:~$ sudo service bind9 restart
* Stopping domain name service...
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Currently Im having a syslog server that consolidate firewall logs on port 514 udp. Im also having a IDS device that I wish to push its logs to this particular syslog server so that I can retrieve my IDS logs on this server as well.
Is it possible to do so?Having syslog listening on port 514 for both firewall and IDS logs? If it is possible will the logs be recorded in a single log file?Or will it be recorded in a separate log file ie. firewall.log, IDS.log etc?? I wish to have them in separate individual log files or else there will be hard time segregating the log entries in a single file. Can anyone advice on how to achieve this??
VERY new to linux, erm but I have an issue that needs solving!I recently moved to university, where their network blocks sftp port 22, this means that I cannot connect to my FTP server which is running a version of linux.Now I've got this ftp server connected to a seedbox and it was created using the following walk through..Code:I have written this guide for a friend, but I though it would be useful for others as well.
There are several guides floating around, but I found that most always cock up in some way. This one is tried and tested to work on Debian Etch (on an OVH rps, but should apply to most servers).If there is a new stable release of rtorrent/libtorrent then I will update this guide to show you how to update it (without reinstalling the whole server).
At the bottom there are also instructions to install ftp access & some network monitoring software.Basically, I would really like someone to be able to construct the commands on how to change the listen port for sftp connection on linux or add another port to the list that Linux would use so that I could put in through putty.
I edited "sshd_config" file and changed port 22 to a new port. After I restart ssh, it listens on port 22 and the new port. How can I disable SSH to listen on port 22? I'm using Debian.
View 6 Replies View RelatedI know that ports are, by default, not filtered; they simply don't respond to requests if there are no services listening on the port. Well, running netstat -tulpn gives:
Code:
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN -
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When I do netstat -pantu it shows a dash where the pid would be. I have also checked lsof -i and see no pid associated with the port. How do I find what program is keeping the port open?
View 1 Replies View RelatedI am running Ubuntu 64-bit and I have been trying to set up an ssh connection between the Ubuntu server and a Windows 7 client (using putty) and when I enter the command:
Code:
sudo netstat --inet -lpn | grep sshd
I get the following:
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My Apache is not listening on port 8080. Hence i cant access my server manager [URL]
View 2 Replies View RelatedHow can I find out which process is listening on a port on linux?
View 5 Replies View RelatedIs there a way to determine what program is listening to some port, TCP or UDP, in Linux?
View 4 Replies View RelatedI'm using iptables with modules ip_contrack_ftp to be able to use passive ftp. It works well as long as port 21 is being used as listening port. Is there any way to make it work when I configure my ftp server (vsftpd) to listen on an alternative port, lets say 21001 or something? The helper module only seems to be working properly with the standard port, so I was wondering whether there was a way to "tell it" that another port is being used? I mean, of course I make a rule in fw to allow traffic to the alternative port.
But once it's time to start passive connection, then the iptable module cannot handle it properly. I could solve the problem by making a range of passive ports in the ftp-server configuration and allow the incoming traffic to them, but then using helper modules doesn't make any sense. I just want to allow the traffic to the listening port and then want the ip_contrack_ftp module to take care of the rest. This is what I do today - but only port 21 seems to be working. Is there a way to do this with a non-standard ftp port?
i tried my best andwrite all the commands given below. but port 27000 is not in listening state.Note: I spoofed MAC address (change MAC address)on this MAchine.here is my iptables file.
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
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I am learning network prgramming in linux in c,and try to build a server and in this server I want to bind the listening socket to a paricular Ip address and port.Bind function is showing error,I did not want to use wild card. Here is the code.
#include<stdio.h>
#include<sys/socket.h>
#include<strings.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<string.h>
[Code]...
is it possible using a perl script to test for a socket listening on a UDP port on a remote host ?I work in an environment where netcat is not allowed and from time to time I need to see if a UDP port is open on a remote host.
View 6 Replies View RelatediSCSI Server, can I change the default port 3260 to other port ?
View 1 Replies View RelatedI installed ZTE MF 626 modem in my F10 with kernel 2.6.27.12-170, i run usb_modeswitch and so far things happened normally. Watching through /var/log/messages it says that F10 detects two port device for this modem: ttyUSB1 and ttyUSB2, and in the sequence it disable port ttyUSB1 BUT Network Manager still set this port.I mean, when i connect via wvdial appointing to ttyUSB2 i get connection, but Network Manager fails to do it appointing to ttyUSB1. How to change device port in Network Manager?
View 1 Replies View RelatedI had to reinstall my DMZ webserver the other day. Now I cannot figure out for the life of me figure out why Apache refuses to listen on eth1 it will only listen on eth0. I have it setup so that it listens with * I'm not specifying a particular IP for it to listen on. When I do specify it still doesn't work.
View 9 Replies View RelatedMandriva 2009, BIND 9.5.0-P2. Named will start however I'm getting the above error as well as these:
14-Mar-2009 15:45:37.084 general: error: zone 0.in-addr.arpa/IN: loading from master file /var/lib/named/var/named/reverse/named.zero failed: file not found
14-Mar-2009 15:45:37.084 general: error: zone 0.0.127.in-addr.arpa/IN: loading from master file /var/lib/named/var/named/reverse/named.local failed: file not found
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Named shows to be running but with the errors above I know it's not running correctly. I also copied the above dir's over to /var/lib/named/var/lib/named which is where I 'believe' it's chroot'd at, though I could be wrong since I'm unfamiliar with chroot.
I am trying to get my own email server set up, and so far its been going pretty smooth, The only thing that is not working right now is receiving emails. I can send email just fine, and when they are sent they are even sent from the proper addresses, but when I try to send an email to my domain, it does not go through.
I have the port forwards set up on my router to send all traffic on port 25 over to my mail server, I can telnet to the smtp server from the localhost just fine, but when I try to telnet from another computer on my network it gives me this message
Quote:
So I ran a netstat -an on my mail server to see what ip address smtp is listening on and I get this result
Quote:
Now most guides I find for this problem just say to un comment the line in the master.cf that says "smtp inet n - - - - smtpd", the problem is that line is already uncommented and I am still not able to telnet to port 25 from any machine on my network.
Here is my main.cf, tell me if there is anything that I can do.
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Looking for a test tool where I can fire up any number of ports (TCP and / or UDP) to listen on.
I am currently getting my using nc but its only 1 port at a time (i know I can open up multiple sessions but thats cumbersome), it can't do UDP, and it closes at the end of the session.
A friend has suggested socat but it looks pretty much the same except it can do UDP, but also cumbersome, I have to manually output to a different file per port, etc.
Basically its so I can quickly test firewall and NAT rules.
My environment is RHEL5. For the sake of discussion, I have two systems, each with multiple ethernet ports.
To simplify the discussion, let's say each computer has two ports. One port is the "public" ethernet (eth0) and the other is the "private" (eth4) ethernet.
All the boot activities must occur on the private site, and to a point this works well. DHCP works, the pxelinux.0 file is transferred (seen using wireshark) and the client appears to bootstrap, when the bootstrap restarts the DHCP handshake using the wrong ethernet port (eth0).
The client does NOT get far enough along to read the client's configuration document under pxelinux.cfg.
How do I instruct pxelinux.0 to use eth4 and not eth0 to continue the boot process?
I download a gz pack from hadoop's official website. It's only 30MB. But my friend give me another package.It's more than 3GB...after decompressing,it's 11.3GB! and I found that the folder enwiki is about 11GB!! but I didn't find this folder in offical package. I wonder what this folder is used for? Is it indispensable?? 3Q~
View 2 Replies View RelatedI am using Cent OS 5.5 and i want configure DNS, but while configuring bind i am getting below error.
#/etc/init.d/named restart Stopping named: [ OK ]
Starting named:
Error in named configuration:
/etc/named.conf:57: open: /etc/named.root.hints: file not found[FAILED]
I am manually backing up my server now with mysqldump and that works but I was wondering about mechanizing the process.
Nirvana would be to dump to a file named with the date
This way I have backups going back over time
I've suddenly stopped getting emails from logwatch which runs on an Ubuntu server daily using cron.After a good day or so of troubleshooting, I was able to establish that it was the 'Service = named' line in my logwatch.conf file, which was stopping the emails from coming through. If I commented out this line, the logwatch emails come through with no issues, uncomment, and I don't get an email. I don't get any error from logwatch itself when I run it, even with '--debug high', leading me to think that my email configuration is setup ok, at least. Furthermore, I tried running logwatch with '--output file --format html' and logwatch produces a valid html file.
I then thought: "Could I have a entry in my Bind/named log files which could be rejected by my ISP's smtp server?". So, (to the best of my knowledge) I cleared out the log files in /var/log that contained messages from named. I then ran logwatch (including the named service in my logwatch.conf file) and I got an email through, with a pretty much empty named section, which is exactly what I anticipated. Great! - it's fixed.
So, the cron.daily ran early this morning, but still no email in my inbox when I got up. I then tried to run 'logwatch --Range today' and lo and behold, I got a logwatch report email, which included a named section, with log entries in there. So it seems that something that's been logged by named overnight to my logfiles (i.e. '--Range yesterday') has caused issues again with logwatch's ability to send reports through my ISP's smtp servers.
I am running named as a caching name server (package bind-9.7.3-1.fc14.x86_64 with config files exactly as supplied), and sometimes it does not shut down cleanly when I shut down the machine.The script /etc/ init.d/named tries to issue a "stop" command with rndc and that seems to fail most of the time; then it next uses the function killproc (defined in /etc/init.d/functions) which fails sometimes.I've hacked the named service script for now so that error messages are not hidden, but there is nothing reported.
View 2 Replies View Relatedhow I could save all of the mail sendmail processes to a named pipe?
View 5 Replies View RelatedI am implementing a simple serial protocol where my ARM9 board, running Linux is communicating to a slave peripheral board. The Master sends a 12 byte data stream and the peripheral board returns status in a 23 byte response. The serial port is opened in raw mode. It works perfectly on 44 reads; however, on the 45 read the data returned from the read() is incorrect. I've framed what's being sent on an oscope and it is correct.The coincidence is that 23 x 44 = 1012. It's as though the receive buffer is 1K and when I go past the boundary I get bad data. The read following the bad one is good again.I've tried flushing the buffer before reading but get the same result.Here's the port initialization code:
Code:
int initport(int fd)
{
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The download speed in the last two days is very slow like 50/60/70kb when my download speed can reach 500kb.
View 2 Replies View RelatedI and setting up a home web server using Ubuntu 10.04 server (local only). I am currently using Webmin 1.53 to access it remotely all is going great very easy to use. Webmin - Check, ftps-fileZilla - Check, Apache -It Works BUT I cant seam to set up Apache as a named server using Bind DSN. Tried most of the help in the fourms and ..... I think my problems is in the master server selection, do i have to use [URL]... or can i just use myservername. I have tryed both with no luck. First time with the server addition.
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