Nagios XI Don't Send E-Mail

[Bone8Head]

Only the test email will send then?

Can you go to the Admin Page, and see if you have any checkmarks that are not green under system status?

Yes, and they are all green (always green).
Yes, ONLY the Test E-Mail (I receveid all of them).

[hsmith]

Can I take a look at your profile?

Go to Admin --> System Config --> System Profile
Click "Download Profile"
Save the .zip file and send it to me as a PM.
Do not attach it to this forum post, it will contain sensitive information.

[hsmith]

I've received the profile, I am going to take a look through it.

[hsmith]

Can I see the output of an ipcs -q command?

[Bone8Head]

Can I see the output of an ipcs -q command?

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[root@nagiosfe /]# ipcs -q

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages
0x20000002 65536      nagios     600        131072000    128000

[hsmith]

It looks like your message queue is maxing out. Can we follow these steps taken from the Nagios XI FAQ

Open /etc/sysctl.conf with a text editor. Edit the file to match the following values:

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 # Controls the maximum size of a message, in bytes
 kernel.msgmnb = 131072000
 
 # Controls the default maxmimum size of a mesage queue
 kernel.msgmax = 131072000
 
 # Controls the maximum shared segment size, in bytes
 kernel.shmmax = 4294967295
 
 # Controls the maximum number of shared memory segments, in pages
 kernel.shmall = 268435456

 ## The maximum number of messages allowed in any one message queue
 kernel.msgmni = 256000

Then run this command:

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sysctl -p

We also should make sure we restart ndo2db.

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service ndo2db restart

[Bone8Head]

It looks like your message queue is maxing out. Can we follow these steps taken from the Nagios XI FAQ

Open /etc/sysctl.conf with a text editor. Edit the file to match the following values:

Done.

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sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 131072000
kernel.msgmnb = 131072000
kernel.shmmax = 4294967295
kernel.shmall = 268435456
kernel.msgmni = 256000
[root@nagiosfe /]# service ndo2db restart
Stopping ndo2db: .done.
Starting ndo2db: done.
[root@nagiosfe /]#

E-Mail are not coming now, unfortunately

[hsmith]

Does your message queue look better now, at least?

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ipcs -q

[Bone8Head]

Does your message queue look better now, at least?

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ipcs -q

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------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages
0x20000002 65536      nagios     600        131072000    128000
0xe0000002 98305      nagios     600        131072000    128000

[hsmith]

How many CPUs do you have on this machine?