08-05-2013
syregnar86,
is this more on firewall(opening ports/closing ports) or more into UNIX sockets ports? Are your question related to ports like (ftp / ssh / sftp)
You have to make it clear.
Ports are open and closed by applications ( like ftp / ssh / http). If you close the applicaiton it will also close the port.
To view what ports is intended to what application is it located in /etc/services that file specify some of the known ports. some applications are not there but those who are common are indicated in the mentioned file.
To view any existing ports ( ESTABLISHED / LISTENING ports on your unix machine. you can use the unix command NETSTAT
ex:
netstat -an | grep ESTAB
hope that helps.
7 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi. I have been trying to send mail using the mailx command. I also tryed to use the mail command.
The thing is that when I try to send the email, i receive automatically to my mailbox a DAEMON response sayng that the mailhost is unknown...
The syntax I am using is this:
$mailx -s "this... (2 Replies)
Discussion started by: ldrojasm
2 Replies
2. UNIX for Dummies Questions & Answers
Is there a command that will show me all ports being used?
I thought maybe the "lsof" command would show me, but I'm not seeing anything.
Thanks,
Jeff (2 Replies)
Discussion started by: lawadm1
2 Replies
3. Shell Programming and Scripting
Hi to everyone here,
I have wrote a script to install and set up parental controls with dansguardian and tinyproxy,(fedora) it works quite well except that i have to manually set http proxy to 127.0.0.1 and port 8080 in firefox, is there a way to do this by command line/script?
Id appeciate any... (2 Replies)
Discussion started by: dave123
2 Replies
4. Shell Programming and Scripting
Hello, im writing a script that validates a URL (the parameter) using http://validator.w3.org
first it downloads the site (the output line I want is stored in the h2 field of the site's html.
wget http://validator.w3.org/check?url=$1 2> /dev/null
sed -n '/<h2/p' check?uri=$1 | sed 's/... (5 Replies)
Discussion started by: drareeg
5 Replies
5. Shell Programming and Scripting
Hello all,
This bellow code works. I'm just trying to find a simplified way to achieve this. I'm sure there is an easier way and it must be to simple for me to find.
Verify that the OS version is 6.1. If not exit the script. Of course if i just put a && exit 1 at the end of the ssh... (11 Replies)
Discussion started by: maverick72
11 Replies
6. Homework & Coursework Questions
Hi,
I am creating a program with the C language that simulates the WC command in Unix. My program needs to count lines, bytes and words. I have not added the code to count bytes and words yet. I am having trouble understanding what the file option/flag '-' does. I can not visualize how it moves... (1 Reply)
Discussion started by: heywoodfloyd
1 Replies
7. Shell Programming and Scripting
Hi,
I need to read a string with ; separated using loop one filed by one field and perform some operation. Can you please check and let me know how to print command parameterised.
key=phani;ravi;kiran
number_of_keys=`echo $key|awk '{print NF}' FS=';'`
for (( i = 1; i <= $number_of_keys;... (4 Replies)
Discussion started by: Ravindra Swan
4 Replies
LEARN ABOUT DEBIAN
hobbitd_client
HOBBITD_CLIENT(8) System Manager's Manual HOBBITD_CLIENT(8)
NAME
hobbitd_client - hobbitd worker module for client data
SYNOPSIS
hobbitd_channel --channel=client hobbitd_client [options]
DESCRIPTION
hobbitd_client is a worker module for hobbitd, and as such it is normally run via the hobbitd_channel(8) program. It receives hobbitd
client messages sent from systems that have the the Xymon client installed, and use the client data to generate the Xymon status messages
for the cpu-, disk-, memory- and procs-columns. It also feeds Xymon data messages with the netstat- and vmstat-data collected by the
client.
When generating these status messages from the client data, hobbitd_client will use the configuration rules defined in the hobbit-
clients.cfg(5) file to determine the color of each status message.
OPTIONS
--clear-color=COLOR
Define the color used when sending "msgs", "files" or "ports" reports and there are no rules to check for these statuses. The
default is to show a "clear" status, but some people prefer to have it "green". If you would rather prefer not to see these status
columns at all, then you can use the "--no-clear-msgs", "--no-clear-files" and "--no-clear-ports" options instead.
--no-clear-msgs
If there are no logfile checks, the "msgs" column will show a "clear" status. If you would rather avoid having a "msgs" column, this
option causes hobbitd_client to not send in a clear "msgs" status.
--no-clear-files
If there are no file checks, the "files" column will show a "clear" status. If you would rather avoid having a "files" column, this
option causes hobbitd_client to not send in a clear "files" status.
--no-clear-ports
If there are no port checks, the "ports" column will show a "clear" status. If you would rather avoid having a "ports" column, this
option causes hobbitd_client to not send in a clear "ports" status.
--no-ps-listing
Normally the "procs" status message includes the full process-listing received from the client. If you prefer to just have the moni-
tored processes shown, this option will turn off the full ps-listing.
--no-port-listing
Normally the "ports" status message includes the full netstat-listing received from the client. If you prefer to just have the moni-
tored ports shown, this option will turn off the full netstat-listing.
--config=FILENAME
Sets the filename for the hobbit-clients.cfg file. The default value is "etc/hobbit-clients.cfg" below the Xymon server directory.
--dump-config
Dumps the configuration after parsing it. May be useful to track down problems with configuration file errors.
--test Starts an interactive session where you can test the hobbit-clients.cfg configuration.
--debug
Enable debugging output.
FILES
~xymon/server/etc/hobbit-clients.cfg
SEE ALSO
hobbit-clients.cfg(5), hobbitd(8), hobbitd_channel(8), xymon(7)
Xymon Version 4.2.3: 4 Feb 2009 HOBBITD_CLIENT(8)