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Old 03-16-2015, 01:02 PM   #1
Registered: Mar 2012
Location: England
Distribution: Debian, Kali, CentOS 7
Posts: 64

Rep: Reputation: Disabled
Firewall-cmd blocks incoming connection when configured to allow

Hi, I've had success in the past with firewall-cmd but this seemingly simply task has caused me hours of pain.

I want to send syslog (using nxlog) from a windows machine to the Centos7 machine.

Windows client Centos 7 client >

so I have added the rule

#firewall-cmd --permanent --zone=public --add-port=5140udp/tcp --add-source
#firewall-cmd --reload
#firewall-cmd --list-all
[root@localhost ~]# firewall-cmd --list-all
public (default, active)
  interfaces: enp0s3
  services: dhcpv6-client ssh (entries from other rules)
  ports: 5140/udp 5140/tcp
  masquerade: no
  rich rules:
after adding this rule when I run nxlog it returns this error:
 2015-03-16 17:54:43 ERROR couldn't connect to tcp socket on;
 No connection could be made because the target machine actively refused it.
Does anyone have any idea why this is happening? Or how I might go about troubleshooting this...

Its so frustrating cos this should be a 30sec job.
Old 03-18-2015, 01:25 AM   #2
Registered: Dec 2005
Location: India
Distribution: centos
Posts: 178

Rep: Reputation: 13
Try setting selinux to permissive mode
setenforce 0


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