Hey all,
I have just installed the agent but I am unable to determine why the service port is listening on tcp6 only? I have searched previous posts but no other occurances of this - its perhaps something I have overlooked… a 2nd set of eyes would be much appreciated;
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| Component | Version |
|---|---|
| LibreNMS | 1.51-53-g9d56593 |
| DB Schema | 2019_02_10_220000_add_dates_to_fdb (132) |
| PHP | 7.2.11 |
| MySQL | 5.5.60-MariaDB |
| RRDTool | 1.4.8 |
| SNMP | NET-SNMP 5.7.2 |
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[OK] Composer Version: 1.8.5
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
====================================
Firewall ports is open.
[root@ch-netmon-01 local]# firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: ens160
sources:
services: ssh dhcpv6-client http https syslog snmp
ports: 9995/udp 3000/tcp 21/tcp 6556/tcp
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
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[root@ch-netmon-01 local]# netstat -tln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.0.1:199 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:6379 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:3000 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:514 0.0.0.0:* LISTEN
tcp6 0 0 :::111 :::* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 ::1:25 :::* LISTEN
tcp6 0 0 :::443 :::* LISTEN
tcp6 0 0 :::6556 :::* LISTEN
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[root@ch-netmon-01 local]# systemctl status check_mk.socket
● check_mk.socket - Check_MK LibreNMS Agent Socket
Loaded: loaded (/etc/systemd/system/check_mk.socket; enabled; vendor preset: disabled)
Active: active (listening) since Wed 2019-05-22 11:24:00 CDT; 30min ago
Listen: [::]:6556 (Stream)
Accepted: 7; Connected: 0
May 22 11:24:00 ch-netmon-01 systemd[1]: Listening on Check_MK LibreNMS Agent Socket.
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I have checked the perl output; but am unclear on what could be causing this…
[root@ch-netmon-01 local]# perl apache
Data fetch failure.