I've got 10.04 on a headless server on a home network. I've edited /etc/ssh ssh_config and changed line 39 from:
# Port 22
to:
Port 30000
I then
user@server$: sudo /etc/init.d/ssh reload
from the host
user@desktop$: ssh servername -p 30000
ssh: connect to host servername port 30000: Connection refused
What am I doing wrong? I've also tried completely restarting the computer.
I would like to have a permanent ssh forwarding of the form ssh -f -N -L9112:localhost:9102 example.org
'man ssh' says that this can be specified in the /etc/ssh/ssh_config file. I tried this:
Code:
Host example.org
#LocalForward [bind_address:]port host:hostport
LocalForward 9112 example.org:9102
I did expect that with 'service sshd restart' the forwarding will be set up. But it does not. 'man ssh_config' doesn't give examples, so I am not sure what is wrong.
currently i want to configure sendmail port number 25 im using these port numberalready how can i chage my senmdail port no.
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View 2 Replies View RelatedI'm not that great with mailservers, and just been thrown a curveball with a MS Exchange environment for which there is apparently no solution... yeah, right. But is there a workaround?
The problem is that the site mail (SMTP) needs to be sent via port 26 instead of the commonly used 25. Port 25 is mapped to a mailfilter, which apparently causes havoc with some of the mail, and the techs that have been on site trying to coax the Exchange server to co-operate have said that the only way would be to get rid of the filter.
The problem is that there are number of apps that are unable to have the outgoing port changed and so keep sending mail out on port 25.
I look after the Unix/Linux side of things at work, and I was wondering if there was an easy way to set up a Ubuntu box to receive mail on port 25 and just forward it to the MS box on port 26? So, in other words (and I hope this makes sense): monitor port 25, and forward whatever comes in on port 25 to the server on port 26. Simple portforwarding, or is it? What steps do I need to take?
I will be setting up a web server at my house. It will be a simple page for my family to keep in touch and maybe some other stuff. Here is the problem: I believe my ISP blocks port 80. So when setting up the firewall and it list the normal port 80 am I able to edit to say 8080? I have a ddns already setup for my router and I am waiting for an email back from DynDNS.com on setting up a new domain to forward to my already setup hostname. I just need to get everything redirected to another port beside 80.
View 4 Replies View Relatedi need to change ssh port on the servers including centos and ubuntu when i make changes to /etc/ssh/sshd.config and change the port to something else restart sshd then i can determine that port 22 is not working but ssh does not connect to new port it says "no route to the host"
View 9 Replies View RelatedNow, i want to change port smtp, not use 25
View 3 Replies View RelatedI 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 RelatedVERY 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.
im using CentOS 5.2 and cant change my default ssh port number. I have edited /etc/ssh/sshd_config to this
Code:
#$OpenBSD: ssh_config,v 1.21 2005/12/06 22:38:27 reyk Exp $
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for
# users, and the values can be changed in per-user configuration files
[code]....
I have then restarted ssh by typing (as root) "sbin/service sshd restart" and it restarts fine but still is on 22 and not 222.
i have installed CentOS along with ISPConfig. For some reason apache will not run it says there are no listening sockets avaliable. I have done a netstat and also tried nmap to see if any other service was using port 80 but it doesnt show anything. I also tried changing the port number to something like 81 still no go. On bootup of CentOS it shows the error and a message saying unable to open logs.
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View 2 Replies View Relatedi am using 9.10 karmic. Firewall is enabled. added ports with ufw allow [portnumber], and i still cannot connect to a port number. iv tryed ufw allow ssh/tcp but that does not work. the ports work when i disable the firewall and i dont want to do that.
ufw is available in all new installations of Ubuntu since 8.04 LTS, but is disabled by default. The standard Ubuntu installation has a no open service ports policy, so enabling the firewall by default doesn't gain any extra security in the default installation, but could provide confusion for people new to Ubuntu when new software that is installed does not work because of restrictive firewall rules. As a result, when first adding ufw to Ubuntu it was decided that users must 'opt-in' to using the firewall. In Ubuntu 9.04 and later, you can enable ufw during installation using preseeding. See /usr/share/doc/ufw/README.Debian for details.
Is it possible to setup SSH Daemon to listen on multiple ports and only accept specific groups to a given port? In the past I've created a second SSH Daemon by copying the config file and /etc/init.d/ daemon then configuring each port separately / rules however if I was able to maintain just the one Daemon that would be optimal. Is this possible?
View 1 Replies View RelatedIs there a way to change the port number that Evolution uses for pop server access? I am trying to access my Gmail through their pop server but they default to a different port number.
View 4 Replies View RelatedI have system with debian linux installed. i got to know that debian doesent have IPTABLES firewall installed in built. i found the shoerwall firewall installed on system. now i wanted to open port no.7 for application comunication purpose please let me know if any one knows.also one more thing.. if i type command iptables --list i can see list of rules installed on ssytem....confuse which firewall application installed on the system.
View 14 Replies View Relatedwe have centos and a win2k8 server. Our pos system is on the centos server. I created a HOST (A) record on win2k8. so users don't have to remember the ip address of the centos server.so i created a friendly name like URL... and the POS web page will be loaded.but my questions is it possible to configure the centos to automatically append the port number if the user type URL... will be auto added at the end of it.
View 3 Replies View RelatedI'm trying to grok a problem I'm having with an embedded machine. I'm pretty sure I can track down the larger problem, but I came across a usage of ifconfig that I don't understand, and I'm pretty sure this is the command that is failing.
The command is: ifconfig eth0 192.168.78.20:9134
I understand how ifconfig works. What I don't understand is the :9134. I can't see anything in the docs about what this means. I know in most contexts it's a port number, but what does it do when bringing up a network interface? Does it limit it to only using port 9134?
I have 3 gateways in my office. I want to redirect all web traffic (port 80 and 443) through one gateway and ssh connections through other one. All machines have single network interface. For this what I did is created an ip alias et0:1 and assigned ip to it. Then wrote an ip route rule to route packets from eth0:1's ip to other gateway. All other traffic will go through default gateway. But here I am not sure how I can make web browser to use eth0:1's ip. It's using eth0 's ip. I wrote a ip table rule to change source ip of http packets to et0:1's ip. But rule is on POSTROUTING chain. So I think it's happening after routing.
View 4 Replies View RelatedI live in a campus & I use wifi...I know the server host IP but dont know ftp port number....so I can not open ftp pages through google chrome as I cant specify the port number. Is there any way to know the port number?
View 3 Replies View RelatedI am working with simple tcp client to establish connection to sockaddr_in servAddress and send data segment:
...
connect(sockfd,&servAddr,sizeof(servAddr)) < 0)
send(sockfd, pkt, pktLen, 0);
close(sockfd);
...
Elementary... Here's the tricky part: next i have to handle user level ack the server is sending to "client"... To do that i have to open server socket on the same port number the system assigned to my client socket before. How can i get it ( in user level code)?
I enabled D-Link (DSL-502T) router web management (I am aware of security implication). I was able remotely to login to the router (by typing http://23.45.xx.6y) before changing the default number 80. Then I changed the port number from the default value 80 to 21908 (https option is not available) for better security, and when I tried to login to the router by typing this :
http://23.45.xx.6y:21908
Yes I am aware that if I am physically near to the router then I can check that , but this is not the case with me. How can I make sure that I had changed port number form 80 to 21908? Does NMAP do a trick to reveal which port is used for web management ? or are there other better options?
I have connected my moblile Nokia 3110c using a data cable to usb to a ubuntu-pc.How can i kanow to which port it is connected and how to confirm this port is using wvdial or not?
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View 4 Replies View RelatedI am trying to create a socket to listen for a bootp response so I am using a PF_PACKET socket so that I get the response based on my mac. My problem is that I don't want to hear all traffic (as I do now) so would like to use a specific port number and bind to it.
View 1 Replies View RelatedIm trying to control my works server from home (due to the snow) and need to edit part of my monte carlo code so need Xforwarding turned on, have tried to edit /ect/ssh/ssh_config to this effect but Im being told I do not have the permission to save the editted file... I am the only user on the computer and this is a pretty much fresh copy of Ubuntu (using 9.04 instead of 9.10 due to networking issues on my laptop, didnt want to risk it on my desktop)
View 6 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?
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