I wish to know what ip : port number it is using. Can you please tell me how can i find out ?
I tried the below command but does not seem to give me a port number in the output:
This will help me monitor if the firewall service is running or not from a remote monitoring server or a monitoring system like Uptime Robot
Can you please tell me how can i find out what port number; is the firewall process listening ON; inorder to monitor the firewall service from a remote system?
Last edited by mohtashims; 09-24-2017 at 11:56 AM..
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 CENTOS
firewalld.service
FIREWALLD.SERVICE(5) firewalld.service FIREWALLD.SERVICE(5)NAME
firewalld.service - firewalld service configuration files
SYNOPSIS
/etc/firewalld/services/service.xml
/usr/lib/firewalld/services/service.xml
DESCRIPTION
A firewalld service configuration file provides the information of a service entry for firewalld. The most important configuration options
are ports, modules and destination addresses.
This example configuration file shows the structure of an service configuration file:
<?xml version="1.0" encoding="utf-8"?>
<service>
<short>My Service</short>
<description>description</description>
<port port="137" protocol="tcp"/>
<module name="nf_conntrack_netbios_ns"/>
<destination ipv4="224.0.0.251" ipv6="ff02::fb"/>
</service>
OPTIONS
The config can contain these tags and attributes. Some of them are mandatory, others optional.
service
The mandatory service start and end tag defines the service. This tag can only be used once in a service configuration file. There are
optional attributes for services:
version="string"
To give the service a version.
short
Is an optional start and end tag and is used to give an icmptype a more readable name.
description
Is an optional start and end tag to have a description for a icmptype.
port
Is an optional empty-element tag and can be used several times to have more than one port entry. All attributes of a port entry are
mandatory:
port="string"
The port string can be a single port number or a port range portid-portid or also empty to match a protocol only.
protocol="string"
If a port is given, the protocol value can either be tcp or udp. If no port is given, it can be any protocol from /etc/protocols to
have a protocol match only.
module
Is an optional empty-element tag and can be used several times to enable more than one netfilter kernel helper for the service. A module
entry has exactly one attribute:
name="string"
Defines the name of the kernel netfilter helper as a string.
destination
Is an optional empty-element tag and can be used only once. The destination specifies the destination network as a network IP address
(optional with /mask), or a plain IP address. The use of hostnames is not recommended, because these will only be resolved at service
activation and transmitted to the kernel. For more information in this element, please have a look at --destination in iptables(8) and
ip6tables(8).
ipv4="address[/mask]"
The IPv4 destination address with optional mask.
ipv6="address[/mask]"
The IPv6 destination address with optional mask.
SEE ALSO firewall-applet(1), firewalld(1), firewall-cmd(1), firewall-config(1), firewalld.conf(5), firewalld.direct(5), firewalld.icmptype(5),
firewalld.lockdown-whitelist(5), firewall-offline-cmd(1), firewalld.richlanguage(5), firewalld.service(5), firewalld.zone(5),
firewalld.zones(5)NOTES
firewalld home page at fedorahosted.org:
http://fedorahosted.org/firewalld/
More documentation with examples:
http://fedoraproject.org/wiki/FirewallD
AUTHORS
Thomas Woerner <twoerner@redhat.com>
Developer
Jiri Popelka <jpopelka@redhat.com>
Developer
firewalld 0.3.9 FIREWALLD.SERVICE(5)