Install Opsview slave note http://docs.opsview.org/doku.php?id=opsview-community:slavesetup
Step 6.
./check_reqs
Before:
libexpat not installed
libldap2-2.4 not installed
mysql server not installed
unzip not installed

After:
yum install rsync openldap-devel mysql-server unzip
ln -s /lib/libexpat.so.0 /usr/lib/libexpat.so


[nagios@Opsview-Slave ~]$ . ./profile
[nagios@Opsview-Slave ~]$ ./check_reqs
All requisites satisfied

Before running send2slaves script:
On slave:
visudo
and comment line: Defaults    requiretty:
#Defaults    requiretty

  ¶ 3:16 PM