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Usermin is a web-based interface for webmail, password changing, mail filters, fetchmail and much more. It is designed for use by regular non-root users on a Unix system, and limits them to tasks that they would be able to perform if logged in via SSH or at the console. See the standard modules page for a list of all the functions built into Usermin. Follow the Process for Usermin installation : 1.Login Webmin >> Un-used Modules >> Usermin Configuration >> Install Usermin RPM package

1.Restrict IP Access Goto Webmin >> Webmin Configuration >> IP Access Control 2.Setup Auto-Logout for session Inactivity Goto Webmin >> Webmin Configuration >> Authentication 3. Change the webmin Port  Goto Webmin >> Webmin Configuration >> Post & Addresses Don't forget to allow new port on CSF Firewall.

By default, Webmin uses a self-signed SSL certificate so your web browser will warn you that the connection is not secure. You can accept the self-signed SSL certificate and proceed to the log in screen. Let's replace it with a valid certificate from Let's Encrypt. We have already generated Lets Encrypt SSL certificate for our Server FQDN using certbot. Please check the Let's Encrypt section for How to install Let's Encrypt for Server FQDN?  Click Here Open the configuration file and add the following : # systemctl stop webmin # vi /etc/webmin/miniserv.conf ssl=1 server=MiniServ/1.900 userfile=/etc/webmin/miniserv.users keyfile=/etc/letsencrypt/live/host.datahead.biz/privkey.pem certfile=/etc/letsencrypt/live/host.datahead.biz/fullchain.pem For CWP: keyfile=/etc/pki/tls/private/hostname.key certfile=/etc/pki/tls/certs/hostname.bundle # This will redirect from http to https ssl_redirect=1 Restart the Webmin Service: # systemctl restart webmin # systemctl

The Webmin is running smoothly but getting error when I'm checking the webmin status using systemctl command.  The New Issue is # systemctl status webmin -l pam_unix(webmin:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost= user=root I'm looking for solution on web but didn't get the proper solution. Someone said that delete the "webmin" file from /etc/pam.d/ and Somebody said that Try editing /etc/webmin/miniserv.conf and removing the line ipv6=1 or just renew the self-sign certificate But I already have Let's Encrypt certificate with validity.    Just Follow this Steps: Goto Webmin >> Webmin Configuration >> Authentication >> Use "Never use PAM for Unix authentication "  OR # vi /etc/webmin/miniserv.conf no_pam=0 :x (save & close) Now Restart the Webmin and check the log , There is no warning . # systemctl restart webmin # tail -f /var/webmin/miniserv.error # tail -f /var/log/secure | gr

After Installing Webmin 1.9 on CentOS 7.6 core , I want to start webmin but it is showing that webmin is excited and I am unable to start webmin manually . I have check the log and found the error below : # tail -f /var/webmin/miniserv.error [05/Feb/2019:16:04:24 +0600] Using MD5 module Digest::MD5 [05/Feb/2019:16:04:24 +0600] Using SHA512 module Crypt::SHA [05/Feb/2019:16:04:24 +0600] Perl module Authen::PAM needed for PAM is not installed : Can't locate Authen/PAM.pm in @INC (@INC contains: /usr/libexec/webmin /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at (eval 9) line 1. BEGIN failed--compilation aborted at (eval 9) line 1. And identified that some module needed for webmin. So now install the required module first : # yum install pam-devel # yum install perl-Authen-PAM # yum install perl-CPAN # perl -MCPAN -e shell # install Module::Build # install Perl4::CoreLibs # install