Programming :: Specify Different Port Other Than Default 22 For One Particular Server In Hostlist
Apr 8, 2011
I have the first part of this script working, but I need help on how to specify a different port other than the default 22 for one particular server in my hostlist. First, here's my working script:
[code]....
Now, the hostlist contains a few servers that all share the same password in this test so as not to complicate that portion of expect's password section. However, one of the servers within hostlist_test will need to have the ssh port defined as, for example, 5522 as I've defined the port forward in DD-WRT's NAT section and changed in the appropriate /etc/ssh/sshd_config for listening. Might anyone be able to help me include that part in my script?
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May 9, 2011
This is a really specific question, but maybe someone can help. I'm debugging someone else's code, and they call a UDPWriter and specify an IP address and port, and I'm trying to make sure this multicast traffic goes over a certain port. How can I determine which port the UDP defaults to and change it?
It's confusing to me because I'm not familiar with all the layers the OS sends traffic through before it goes through the interface. Is there maybe some simpler way to tell the OS to send multicast traffic over both interfaces?
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Feb 9, 2010
I want to change my ssh port from the default 22 to something else. I did the following: vi /etc/ssh/sshd_config; uncommented Port 22 and changed it to the desired port number. After that I run service sshd restart for the change to take an effect. Now, when I want to login into the new port I receive this message - Network error:Unable to route to host. When I change the port back to 22, I will be able to login again.
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Nov 25, 2010
Now that I've set up an FTP server here at home I'm thinking that it might be a good idea to change from the default Port 21 to something else. Can I use any port I desire or are there only certain ports that support this protocol?
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Jul 17, 2010
I have a CentOS server running at [a link which has been moderator deleted] (a text-based game I'm building) which is displaying the default welcome page. I'll quote some of the things that page says:
Quote: "Apache 2 Test Page powered by CentOS This page is used to test the proper operation of the Apache HTTP server after it has been installed. If you can read this page it means that the Apache HTTP server installed at this site is working properly."
"If you are the website administrator: You may now add content to the directory /var/www/html/. Note that until you do so, people visiting your website will see this page and not your content. To prevent this page from ever being used, follow the instructions in the file /etc/httpd/conf.d/welcome.conf. You are free to use the images below on Apache and CentOS Linux powered HTTP servers.
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Feb 19, 2010
tring to run an ftp server on default ports with port 10100-10199 as passive. Using vsftp. But the ports refuse to open what the heck am I doing wrong? see screen shot. oh using karmac, now.
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Feb 2, 2009
I want to change my MySQL default port(3306) as 80 how can i do this on centOS 5.2? I tired to add
[client]
port=80
to /etc/my.cnf and different command in this file. But mysql didn't start. How can do this? I'll use server only as mysql and ftp server.
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Jul 19, 2011
I'm working on program that is going through setting different baud rates onto a config file. After I set a new value i want to check if it's the correct one by reading from the serial port on the server unit. I know what to expect if it's the correct baud rate so that's no problem, but searching through the internett i've yet to find a compact solution to my problem.
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May 2, 2010
I have a mail server i need it to send message via port 587 not port 25, i make some changes to my postfix server which i use and it is already successed making a telnet to 587 port like it :
[Code]....
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Jun 27, 2010
I need to make some C program under linux to make some scripts that can talk to my Server's Parallel port by sending some quare signal as high or low, so what i can do ?
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Oct 21, 2010
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.
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Aug 5, 2009
If 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?
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Sep 10, 2010
I installed Apache2 on Redhat EL 5. I am trying to change the default port (80) to 85. I tried editing httpd.conf and changed
Listen 80
to
Listen 85
It ditn't change any thing. 'netstat -tuapn | grep :85' returns nothing.
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Jul 1, 2010
server: LAMP - debian, apache2, mysql, php5. a bit info on my network: There is a another service here that already uses port 443 already. It made my website time out, hence the move to another port. PLus, i dont want the 2 services sharing the port. What I am trying to do is forward 443 requests to another port where the SSL service is running so I can hide my port number in the URL.
Here is my sites available conf file:
Code:
NameVirtualHost *:80
NameVirtualHost *:443
NameVirtualHost *:####
[code]....
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Sep 6, 2010
We are trying to create a message forwarder program that receive a message on Port A and pass it on t Port B. Also receive a message from Port C and Pass it on to Port D as follows.
[Code]...
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Apr 20, 2010
is it a bad idea to change SSH's default port (22) to a different port number
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May 26, 2010
How can I change the default port of ssh that is 22? Because of security issue I just want to give some other port.
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Oct 9, 2015
On this moment i build an webenvironment with wordpress, apache2, debian 8. On this moment i try to impelement Varnish.
By default this application use the port 6081. I try to put apache on port 8080. This already works but i get varnish not running on port 80.
You can see below that varnish still listen to the default port 6081. How can i fix this?
Code: Select allroot@webI:/home/beheerder# netstat -lpt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:ssh *:* LISTEN 2917/sshd
tcp 0 0 *:6081 *:* LISTEN 3717/varnishd
tcp 0 0 localhost:6082 *:* LISTEN 3699/varnishd
[Code] ....
To test another port i have also try to start Varnish on port 85.
Code: Select allvim /etc/default/varnish
DAEMON_OPTS="-a :85
-T localhost:6082
-f /etc/varnish/default.vcl
-S /etc/varnish/secret
-s malloc,256m"
I have restart the apache and varnish services. I have also rebooted the server but varnish will not listen on port 80 (or other non default ports). On port 6081 the application works fine. But how can i fix this ?
Source Varnish port 80
I can use the application with the following command
Code: Select allvarnishd -f /etc/varnish/default.vcl -a 0.0.0.0:80.
But why is this not working with the normal config file. Varnish are than listen to port 80. With every server reboot i need than to run this command. So i would like to use the config file.
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Jul 19, 2011
I'm trying to change the default mysql port with no success. I looked at my.cnf file and there's no reference to port. I also looked at the iptables and mysql is running on 3306 (default).I've changed the iptable file but mysql fails to restart.If I add port = [my port number] to the my.cnf file, mysql fails to start.
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Apr 6, 2011
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.
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Jan 29, 2010
I used pptpd in cent os 5.4I want to change the default port 1723 of pptpd to 1813I chnage the pptpd port in service file to 1813 but ppp dont worknote : in ms vpn client i change the port to 1813
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May 30, 2011
I am trying to create multiple FTP sites on one Linux server (using multiple vsftpd-sitename.conf files) with default port '21'.
Below is the sample vsftpd site configuration,
# cat vsftpd-site1.conf
listen=YES
write_enable=YES
[code]....
I am unable to create above vsftpd site with port '21'. Below is the problem,
# vsftpd vsftpd-site1.conf &
[1] 14448
500 OOPS: could not bind listening IPv4 socket
I wonder, i can able to create above FTP site with another port (example, listen_port=60001 ). In Linux(vsftpd), can i use default ftp port '21' for multiple FTP sites?
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May 5, 2010
The default output audio port Ubuntu doesn't work on my system. It should be "Analog Mono Output/Amplifier", instead of "Analog Output/Amplifier". I can easily change that in sound preferences, just by choosing the right port in the "Output" tab. The problem is this would only apply to a single account, and I would like to change it system-wide, so it applies to all accounts on the system (I have more than 100 users...).
Update: I can achieve the same effect as I would by changing it in sound preferences using the following command: pacmd 'set-sink-port' 'alsa_output.pci-0000_00_1f.5.analog-stereo analog-output-mono;output-amplifier-on' Unfortunately that's still not system-wide,
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Mar 8, 2010
I don't think it would be harmful to run ssh on the default port of 22. Especially since the machine will only accept key-based logins and only accept traffic on port 22 from external IP addresses that I specify.
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Jan 5, 2011
do you have any code to flash led lights with paralel port (device driver programming)or any lecture about this subject .if there is a working code this would be better ofcourse.
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Mar 28, 2011
Is it possible to swap a client ip and port ? This is what I am trying to do. Let say you have Comp1 and Comp2 And you have Server between them. My goal is to get Comp1 and Comp2 know each others IP So Comp1 connects to server And server stores comp1's IP In a text file or other place And Comp2 connect to server And server also stores his info And then both comp1 and comp2 dowload the tex file And use the info on it.
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May 7, 2010
The default output audio port Ubuntu doesn't work on my system. It should be "Analog Mono Output/Amplifier", instead of "Analog Output/Amplifier". I can easily change that in sound preferences, just by choosing the right port in the "Output" tab, or by issuing the following command:
Code: pacmd 'set-sink-port' 'alsa_output.pci-0000_00_1f.5.analog-stereo analog-output-mono;output-amplifier-on' The problem is both solutions apply only to a single account, while I would like to change it system-wide, so it applies to all accounts on the system (there are more then 100 accounts - it's a set up for a school).I'm using Ubuntu 10.04.
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Jun 1, 2010
I have been working on writing a small rs232 driver like minicom for months. I am almost there, I have the interrupt service routine running, I can read() ok. However when I write(), it returns the number of characters written, 1, but nothing is actually written out the port. I researched termios, and they say that serial port programming is really messy in linux/unix.
I am probably not setting up the port parameters correctly, or my write() function is not doing what it is supposed to. As I said, write() is returning successful. Other comm programs run ok (picocom & gtkterm) on my hardware. I am running knoppix/debian on an ancient computer. I saw other guys using slackware.
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Nov 24, 2010
I have a serial port program which is reading a string .if(read(readfd,sResult,1)>0)where sResult is unsigned char sResult[10];if sResult is array of 10 then iam getting string perfectly but if iam making sResult only as unsigned char I am getting NULL value CODE BELOW
Code:
unsigned char sResult;
main()
{
readfd = open("/dev/ttyUSB0", O_RDONLY);
if (readfd == -1)
{
perror("READ: open_port: Unable to open /dev/ttyUSB0-
[Code]...
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Feb 4, 2011
i am trying to edit sshd_conf files to change the "#Port 22" to "Port 22" from a script.
I have tried this many different ways.
sshs1='s/#Port 22/Port 22/g'
sed $sshs1 /home/l/Desktop/test
the reason i have it as a string in this instance is because $sshs1 gets a variable, but im not working on that right yet. I've tried changing the ' to ` and ". this is what i get:
sed: -e expression #1, char 7: unterminated `s' command
sed: -e expression #1, char 8: extra characters after command
sed: -e expression #1, char 8: extra characters after command
"
sed: -e expression #1, char 7: unterminated `s' command
i know it may have to do with my regex, but i cant seem to find a decent tut.
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