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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

firewall-applet

FIREWALL-APPLET(1)						  firewall-applet						FIREWALL-APPLET(1)

NAME

       firewall-applet - firewalld applet

SYNOPSIS

       firewall-applet [OPTIONS...]

DESCRIPTION

       firewall-applet is a tray applet for firewalld.

OPTIONS

       firewall-applet does not support any special options. The only options that can be used are the general options that Gtk uses for Gtk
       application initialization. For more information on these options, please have a look at the runtime documentation for Gtk.

       The following options are supported:

       -h, --help
	   Prints a short help text and exists.

GSETTINGS

       firewall-applet has additional settings to adapt the look and feel. The used backend depends on the distribution and can be either dconf or
       GConf. The path to the settings is org.fedoraproject.FirewallApplet. You can use dconf-editor or gconf-editor to see and modify them.

       The following settings are supported:

       notifications
	   The applet shows notifications if enabled. This setting can be enabled also in the applet with the "Enable Notifications" checkbox in
	   the right mouse menu.

	   This setting defaults to false.

	   If notifications are shown for these actions if enabled:

	   o   Connection to firewalld established

	   o   Connection to firewalld lost

	   o   Firewall has been reloaded

	   o   Default zone has been changed

	   o   Panic mode has been enabled or disabled

	   o   Activation, deactivation or change of zones bound to interfaces

	   o   Activation, deactivation or change of zones bound to sources addresses

       show-inactive
	   Show applet also if firewalld is not running. If firewalld has been stopped or is not running the applet will be hidden and not visible
	   in the applet tray. Enable this setting to see the applet all the time for example to be sure that the firewall is active.

	   This setting defaults to false.

       shields-up
	   The shields-up zone name to be used if shields-up is enabled.

	   This setting defaults to 'block'.

       shields-down
	   The shields-down zone name to be used if shields-up has been deactivated again.

	   This setting defaults to 'public'.

       blink
	   If enabled, the applet icon blinks in these cases:

	   o   Connection to firewalld lost

	   o   Panic mode has been enabled or disabled

	   This setting defaults to false.

       blink-count
	   The number of blinks if blink is enabled.

	   This setting defaults to 5.

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 														FIREWALL-APPLET(1)
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