The Firewall isn't a service that listens on a particular port so netstat will not be able to identify if it is running like it can for other services (like apache).
You could use firewall-cmd to enquire on the firewall status like this:
Hi,
So that potential responders will have an idea of what they're dealing with let me say that while I am a UNIX newbie I have been in IT for over 10 years.
We have several SUN boxes running ver 5 of the OS that have been sitting dormant for some time as they were part of a now defunct... (3 Replies)
Well, since I wrote the below, I've learned a little more about Samba, and got them to at least acknowledge each other. Still can't use Gaurd dog. Still cant print from one to the other.
I'm learning I'm learning
I recently installed mepis 7 on both my laptop and laptop. (I came... (0 Replies)
Hi,
I will like to allow access to the mysql port (3306) to certain IP address. All other IP's should be automatically blocked. What is the best way to do this? (8 Replies)
Hello,
I want to add a port in the firewall exception list so that my application can be accessed over network even if firewall is disabled. I am using iptables command to add exception.
The problem is, after setting the rule if I change the firewall setting i.e. on/off then it is overwriting... (1 Reply)
Hello,
I made a following script that check every 5 minutes to check firewall is running or not, if firewall down that raise an alert only once, but following script generate an alert every 5 minutes according to cronjob:
FILE="/var/log/fwstatus"
CHK="/tmp/fwstatus"
service... (1 Reply)
hi guys
I doing some collocation for a customer, customer requested to use other port for ssh not the default one. OK no problem
and customer will be using rsync to sync backups among other things
I know we have to open port let's say port 5999 for ssh since we are using that one now but I... (1 Reply)
Hi,
I need to know what kind of firewall settings does the linux box have? Is port 25 blocked in any way?
Linux techx 3.10.0-514.10.2.el7.x86_64 #1 SMP Fri Mar 3 00:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
I'm coming from this thread. (1 Reply)
Below is what i did to open the firewall port on
# sudo firewall-cmd --zone=public --add-port=27012/tcp --permanent
Warning: ALREADY_ENABLED: 27012:tcp
success
# sudo firewall-cmd --reload
success
# firewall-cmd --list-all
public
target: default
icmp-block-inversion: no
... (10 Replies)
Discussion started by: mohtashims
10 Replies
LEARN ABOUT DEBIAN
mason
MASON(1)MASON(1)NAME
mason - interactively create a firewall
SYNOPSIS
mason < logfile > rulefile
DESCRIPTION
This manual page briefly documents the mason command.
mason interactively generates a set of firewall rules for a Linux-based firewall. This is done by turning on full IP logging, watching the
logs for connections, and generating rules describing the connections seen. mason is familiar with most of the quirks of various connec-
tion types (such as ftp and IRC), and can output rules for 2.0.x ipfwadm, 2.2.x ipchains, and Cisco packet filters.
mason operates by reading in log file information from standard input and writing firewall rules to standard output. This allows mason to
work offline or on a separate system. Real-time firewall generation can be achieved with a command like tail(1).
Most users will want to run mason with a user-friendly interface such as mason-gui-text(1).
ENVIRONMENT
mason is configured using the following environment variables.
ECHOCOMMAND
Sets the type of firewall rules that mason should output to standard out. Allowed values include "ipfwadm" and "ipchains". By
default, mason outputs whatever kind of rules are supported by the currently running Linux kernel.
DOCOMMAND
Sets the type of firewall rules that mason should run immediately when a rule is generated. Allowed values include "ipfwadm" and
"ipchains". By default, mason outputs whatever kind of rules are supported by the currently running Linux kernel.
HEARTBEAT
If set to "yes", mason will output a "+" or "-" to standard error whenever a rule generated by mason has been triggered.
DYNIP Set this to the list of interfaces that have dynamically assigned addresses, separated by spaces.
SEE ALSO mason-gui-text(1)AUTHOR
This manual page was written by Jeff Licquia <jeff@luci.org>, for the Debian GNU/Linux system (but may be used by others).
MASON(1)