Celeb Glow
news | April 03, 2026

How to change the username and password for nagios site access on config files

This explains how to configure username and password during initial configuration:

How do I install nagios?

How can I change that using config files on server if I've lost the username and password?

4 Answers

$ find / -name nagios*.conf
###/etc/httpd/conf.d/nagios.conf
$ cat /etc/httpd/conf.d/nagios.conf | grep AuthUserFile
###AuthUserFile /etc/nagios/passwd
$ sudo htpasswd -c /etc/nagios/passwd nagiosadmin
1

I found the answer

sudo htpasswd -c /etc/nagios3/htpasswd.users nagiosadmin

Enter a strong password when prompted.

Note the -c replaces all existing passwords. To simply update an existing one (without affecting others):

sudo htpasswd /etc/nagios3/htpasswd.users nagiosadmin
1

Try using:

username - nagiosadmin
password - nagios

Use this command:

htpasswd /usr/local/nagios/etc/htpasswd.users nagiosadmin

It will ask for new password.

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