On Solaris you may met the following problem

“nagios – NRPE: Unable to read output”, may caused by the plugin, check the permission and libs

ldd /usr/local/nagios/libexec/check_disk , if it tell you “not found” , try to get the lib from www.sunfreeware.com

libintl.so.8 =>  /usr/local/lib/libintl.so.8

libiconv.so.2 =>         /usr/local/lib/libiconv.so.2

libsec.so.1 =>   /usr/lib/libsec.so.1

libc.so.1 =>     /usr/lib/libc.so.1

libpthread.so.1 =>       /usr/lib/libpthread.so.1

libdl.so.1 =>    /usr/lib/libdl.so.1

libgcc_s.so.1 =>         /usr/local/lib/libgcc_s.so.1

libavl.so.1 =>   /lib/libavl.so.1

libm.so.2 =>     /lib/libm.so.2


groupadd nagios

useradd -G nagios nagios

for i in ALTnrpe-2.12-3-159-sol10-i386.pkg libgcc-3.4.6-sol10-x86-local libiconv-1.13.1-sol10-x86-local libintl-3.4.0-sol10-x86-local


pkgadd -d http://myhost/solaris/$i