<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 9"> <meta name=Originator content="Microsoft Word 9"> <link rel=File-List href="cid:filelist.xml@01C52E32.3F96FF30">  <style>  </style> </head> <body lang=EN-US style='tab-interval:.5in'> <div class=Section1> Hi All,<o:p></o:p> I having configured the nagios every things seems to be working fine except the mail notification part I am not able to figure out why nagios not been able to send out email. My system is configured to use sendmail . ios and sendmail logs of the nagios and send mail are give bellow. <o:p></o:p> <![if !supportEmptyParas]> <![endif]><o:p></o:p> <![if !supportEmptyParas]> <![endif]><o:p></o:p> [root@nyx var]# tail -f nagios.log<o:p></o:p> [1111406029] Auto-save of retention data completed successfully.<o:p></o:p> [1111406319] SERVICE NOTIFICATION: shanthk;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> [1111406319] SERVICE NOTIFICATION: manjuv;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> [1111406319] SERVICE NOTIFICATION: guruprasadgv;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> [1111406489] SERVICE NOTIFICATION: shanthk;nyx;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> [1111406489] SERVICE NOTIFICATION: manjuv;nyx;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> [1111406489] SERVICE NOTIFICATION: guruprasadgv;nyx;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> [1111406919] SERVICE NOTIFICATION: shanthk;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> [1111406919] SERVICE NOTIFICATION: manjuv;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> [1111406919] SERVICE NOTIFICATION: guruprasadgv;nyx;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> <![if !supportEmptyParas]> <![endif]><o:p></o:p> [root@nyx var]# tail -f messages<o:p></o:p> Mar 21 17:21:29 nyx nagios: SERVICE NOTIFICATION: <contact_name>;<host_name>;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> Mar 21 17:23:49 nyx nagios: Auto-save of retention data completed successfully.<o:p></o:p> Mar 21 17:26:06 nyx sshd(pam_unix)[9655]: authentication failure; logname= uid=0 euid=0 tty=NODEVssh ruser= rhost=192.168.0.78 user=root<o:p></o:p> Mar 21 17:26:31 nyx sshd(pam_unix)[9655]: 1 more authentication failure; logname= uid=0 euid=0 tty=NODEVssh ruser= rhost=192.168.0.78 user=root<o:p></o:p> Mar 21 17:28:39 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> Mar 21 17:28:39 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> Mar 21 17:28:39 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;HTTP;WARNING;notify-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden<o:p></o:p> Mar 21 17:31:29 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> Mar 21 17:31:29 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> Mar 21 17:31:29 nyx nagios: SERVICE NOTIFICATION<contact_name>;;<host_name>;/;/dev/hdb1 Free Space;CRITICAL;notify-by-email;DISK CRITICAL - free space:<o:p></o:p> <![if !supportEmptyParas]> <![endif]><o:p></o:p> <![if !supportEmptyParas]> <![endif]><o:p></o:p> [root@nyx log]# tail -f maillog<o:p></o:p> Mar 21 17:30:01 nyx sendmail[9734]: j2LC01Xn009734: from=<root@nyx.world2web.com>, size=612, class=0, nrcpts=1, msgid=<200503211200.j2LC01We009732@nyx.world2web.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]<o:p></o:p> Mar 21 17:30:01 nyx sendmail[9732]: j2LC01We009732: to=root, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30338, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (j2LC01Xn009734 Message accepted for delivery)<o:p></o:p> Mar 21 17:30:01 nyx sendmail[9735]: j2LC01Xn009734: to=<root@nyx.world2web.com>, ctladdr=<root@nyx.world2web.com> (0/0), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30834, dsn=2.0.0, stat=Sent<o:p></o:p> Mar 21 17:35:00 nyx sendmail[9824]: j2LC50Vg009824: from=root, size=338, class=0, nrcpts=1, msgid=<200503211205.j2LC50Vg009824@nyx.world2web.com>, relay=root@localhost<o:p></o:p> Mar 21 17:35:00 nyx sendmail[9826]: warning: /etc/hosts.allow, line 6: missing newline or line too long<o:p></o:p> Mar 21 17:35:00 nyx sendmail[9826]: j2LC50c6009826: from=<root@nyx.world2web.com>, size=612, class=0, nrcpts=1, msgid=<200503211205.j2LC50Vg009824@nyx.world2web.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]<o:p></o:p> Mar 21 17:35:00 nyx sendmail[9824]: j2LC50Vg009824: to=root, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30338, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (j2LC50c6009826 Message accepted for delivery)<o:p></o:p> Mar 21 17:35:01 nyx sendmail[9827]: j2LC50c6009826: to=<root@nyx.world2web.com>, ctladdr=<root@nyx.world2web.com> (0/0), delay=00:00:01, xdelay=00:00:00, mailer=local, pri=30834, dsn=2.0.0, stat=Sent<o:p></o:p> Mar 21 17:35:15 nyx sendmail[9830]: warning: /etc/hosts.allow, line 6: missing newline or line too long<o:p></o:p> Mar 21 17:36:07 nyx sendmail[9830]: j2LC5FtR009830: localhost.localdomain [127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA<o:p></o:p> </div> </body> </html>