<s>
Naemon	B-Protocol
is	O
an	O
open-source	B-Application
computer	O
system	B-Application
monitoring	I-Application
,	O
network	O
monitoring	O
and	O
infrastructure	O
monitoring	O
software	B-Application
application	I-Application
.	O
</s>
<s>
Naemon	B-Protocol
offers	O
monitoring	O
and	O
alerting	O
services	O
for	O
servers	O
,	O
switches	O
,	O
applications	O
,	O
and	O
services	O
.	O
</s>
<s>
Naemon	B-Protocol
was	O
created	O
in	O
2014	O
as	O
a	O
fork	B-Application
of	O
Nagios	B-Application
.	O
</s>
<s>
It	O
is	O
available	O
for	O
Red	O
Hat	O
,	O
CentOS	O
,	O
SUSE	O
,	O
Debian	O
and	O
Ubuntu	B-Operating_System
Linux	I-Operating_System
distribution	I-Operating_System
.	O
</s>
<s>
Naemon	B-Protocol
is	O
open	B-Application
source	I-Application
software	I-Application
licensed	O
under	O
the	O
GNU	O
GPL	O
V2	O
.	O
</s>
<s>
Monitoring	O
of	O
network	O
services	O
(	O
SMTP	B-Protocol
,	O
POP3	B-Protocol
,	O
HTTP	B-Protocol
,	O
NNTP	B-Protocol
,	O
PING	O
,	O
etc	O
.	O
</s>
<s>
Monitoring	O
of	O
host	O
resources	O
(	O
processor	B-General_Concept
load	O
,	O
disk	B-Device
usage	O
,	O
etc	O
.	O
</s>
<s>
Contact	O
notifications	O
when	O
service	O
or	O
host	O
problems	O
occur	O
and	O
get	O
resolved	O
(	O
via	O
e-mail	O
,	O
pager	B-Application
,	O
or	O
any	O
user-defined	O
method	O
through	O
plugin	O
system	O
)	O
.	O
</s>
