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Full Discussion: Testing connectivity to an URL
Top Forums UNIX for Advanced & Expert Users Testing connectivity to an URL Post 303045332 by anaigini45 on Tuesday 17th of March 2020 04:04:53 AM
Old 03-17-2020
Testing connectivity to an URL
Hi,


I need to access this URL from my laptop :


However, I am not able to. Error received was "Connection was reset".
(Attached image)



My laptop IP is 192.168.8.149, and I do a telnet to confirm the connectivity :


Code:
C:\Users\Owner>telnet 192.168.121.72 8081
Connecting To 192.168.121.72...Could not open connection to the host, on port 8081: Connect failed

C:\Users\Owner>

I do a curl directly from the host that runs the atricore modules :


Code:
[root@amanda-server etc]# curl -Is http://localhost:8081/atricore-console/ | head -1
HTTP/1.1 302 Found

This is the output from ss -tulpn for port 8081 :


Code:
tcp   LISTEN     0      50                                                            [::]:8081                                                                      [::]:*                   users:(("java",pid=11585,fd=339))

Correct me if I am wrong, but I believe the telnet clearly shows that the access to that ip and port is not available, and most probably due to physical firewall connection?
This is because there is no firewalld running within the server itself :


Code:
[root@amanda-server etc]# systemctl status firewalld
- firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:firewalld(1)
[root@amanda-server etc]#

And what does the status HTTP/1.1 302 Found mean from the curl output?
I hope opening the port at the physical firewall level will resolve this problem?
Last edited by anaigini45; 03-17-2020 at 05:11 AM..
 

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LEARN ABOUT CENTOS

firewalld.conf

FIREWALLD.CONF(5)						  firewalld.conf						 FIREWALLD.CONF(5)

NAME

       firewalld.conf - firewalld configuration file

SYNOPSIS

       /etc/firewalld/firewalld.conf

DESCRIPTION

       firewalld.conf is loaded by firewalld during the initialization process. The file contains the basic configuration options for firewalld.

OPTIONS

       These are the options that can be set in the config file:

       DefaultZone
	   This sets the default zone for connections or interfaces if the zone is not selected or specified by NetworkManager, initscripts or
	   command line tool. The default zone is public.

       MinimalMark
	   For some firewall settings several rules are needed in different tables to be able to handle packets in the correct way. To achieve
	   that these packets are marked using the MARK target iptables(8) and ip6tables(8). With the MinimalMark option a block of marks can be
	   reserved for private use; only marks over this value are used. The default MinimalMark value is 100.

       CleanupOnExit
	   If firewalld stops, it cleans up all firewall rules. Setting this option to no or false leaves the current firewall rules untouched.
	   The default value is yes or true.

       Lockdown
	   If this option is enabled, firewall changes with the D-Bus interface will be limited to applications that are listed in the lockdown
	   whitelist (see firewalld.lockdownwhitelist(5)). The default value is no or false.

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.CONF(5)
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