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Cybersecurity

firewall vs. closing ports

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Special Forums Cybersecurity firewall vs. closing ports
# 8  
Old 02-24-2002
Great suggestions by everyone. While we are on this topic ...

You did not mention if this was personal or work use. If you dont have a machine to spare, and don't plan on a firewall or are working on a long term firewall solution, the least that you should do, is to disable access to stuff like telnet, ftp, etc. Telnet, ftp is not secure since you are transmitting cleartext passwords over the internet.

In FreeBSD you can edit the /etc/hosts.allow file to turn off access to some or all of these services. For example, if you absolutely need telnet, then allow it from all the known domains and IPs.

Also check your /etc/services file to see if you can completely turn off some of them.

LivingFree points this appropriately, if you don't have ports open, you can't attack them!
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LEARN ABOUT SUNOS

jms-ping

asadmin-jms-ping(1AS)						   User Commands					     asadmin-jms-ping(1AS)

NAME

       jms-ping  - checks to see if the JMS provider is up and running

SYNOPSIS

       jms-ping   --user  admin_user  [--password  admin_password]  [--host  localhost]  [--port  4848]  [--passwordfile  filename]  [--secure|-s]
       [--terse=false] [--echo=false] [--interactive=false]

       Checks to see if the JMS provider is up and running. This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --passwordfile	       file containing the domain application server password.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script. Default is false.

       --echo		       setting to true will echo the command line statement on the standard output. Default is false.

       --interactive	       if set to true (default), only the required password options are prompted.

       Example 1: Using jms-ping

       asadmin> jms-ping --user admin --password adminadmin --host bluestar --port 4848 server1
       JMS Ping Status=RUNNING

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-create-jmsdest(1AS), asadmin-delete-jmsdest(1AS), asadmin-list-jmsdest(1AS)

J2EE 1.4 SDK							    March 2004						     asadmin-jms-ping(1AS)