Search found 16 matches

by pnikhade
Mon Jun 23, 2025 12:29 am
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

Hey, I resolved it myself. Let's close this out.
by pnikhade
Mon Jun 23, 2025 12:09 am
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

No, it gives a syntax error. See, like below. I am a bit confused on how I can monitor these ports using a single command ? Any documentation got this ? Jun 23 10:39:32 nagios-core nagios[2654]: Nagios Core 4.4.6 Jun 23 10:39:32 nagios-core nagios[2654]: Copyright (c) 2009-present Nagios Core Develo...
by pnikhade
Tue Jun 17, 2025 10:39 pm
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

If I do not use that as a part of the syntax, it will throw syntax error.
by pnikhade
Sun Jun 15, 2025 11:56 pm
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

The single quotes are basically taking arguments with "-a" flag. So not sure it is an incorrect syntax ?

Anyways I tried that as well, UI shows like below,
Usage:
by pnikhade
Sun Jun 15, 2025 11:22 pm
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

It is not resolved. I am still getting below message on UI. Please help. I just showed you in my earlier reply that from command line this works correctly but on UI it shows error.

(No output on stdout) stderr: Could not resolve hostname 15.207.248.93 -p 9200: Name or service not known
by pnikhade
Sun Jun 15, 2025 10:56 pm
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

Please understand that EC2 instance was turned off and once it is on it will be assigned with new IP. Hence 15.207.248.93 is the new IP address. This IP address is replaced everywhere, including nrpe.cfg, and .cfg file under server directory. [root@nagios-core ~]# /usr/local/nagios/libexec/check_tcp...
by pnikhade
Sun Jun 15, 2025 10:11 pm
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Re: Nagios check_tcp not showing correct status on UI

Please check the below, Service defination defined on nagios server, Path - /usr/local/nagios/etc/servers/ELK-stack.cfg define host { use linux-server host_name ELK-Stack alias My client server address 15.207.248.93 max_check_attempts 20 check_period 24x7 notification_interval 1 notification_period ...
by pnikhade
Sun Jun 15, 2025 9:14 am
Forum: Open Source Nagios Projects
Topic: Nagios check_tcp not showing correct status on UI
Replies: 14
Views: 56521

Nagios check_tcp not showing correct status on UI

Hi All, I am working to setup nagios monitoring on remote host for TCP ports 5044, 9200 & 5601. All these ports have containers running for elasticsearch, logstash & kibana respectively. The problem here is that whenever I try to setup monitoring on the /usr/local/nagios/etc/servers hosts.cf...
by pnikhade
Mon Apr 29, 2024 12:57 am
Forum: Open Source Nagios Projects
Topic: connect to address 127.0.0.1 and port 0: Connection refused
Replies: 3
Views: 2915

Re: connect to address 127.0.0.1 and port 0: Connection refused

Thanks for your response, but it shows status as "Unknown" after modifying the nrpe.cfg on client. Complete alert as below, looks like that is incorrect syntax. Current Status: UNKNOWN (for 0d 0h 2m 22s) Status Information: Usage: check_tcp -H host -p port [-w <warning time>] [-c <critical...
by pnikhade
Sat Apr 27, 2024 12:35 am
Forum: Open Source Nagios Projects
Topic: connect to address 127.0.0.1 and port 0: Connection refused
Replies: 3
Views: 2915

connect to address 127.0.0.1 and port 0: Connection refused

Hi All, Greetings of the day ! I have one RHEL EC2 instance running nginx listening to port 80. I have defined commands and service check in host config file to monitor this host. After running below command manually, I could see it's working perfectly. ./check_tcp -H 13.233.117.236 -p 80 -w 10 -c 2...