Setting up NRPE daemon

Note: This was tested using Alpine 1.9.1, running under VMware Workstation 5.5.1 build-19175. Host O/S for VMware Windows XP Home SP3. CPU: Intel Atom N270. Mostly due to laziness, didn't find openssl-dev, since apk wasn't available, so SSL support isn't compiled in when following he below steps.

Steps for compilation:

1. Downloaded nrpe-2.12
2. apk add alpine-sdk
3. apk add net-snmp # Wanted for some nrpe plugins
4. apk add linux-grsec-dev
5. ./configure --disable-ssl
6. make all
7. make install-plugin
8. make install-daemon
9. Since sample config didn't compile using above steps, configured the following config for testing:

  pid_file=/var/run/nrpe.pid
  server_port=5666
  server_address=192.168.48.128
  allowed_hosts=192.168.48.128

• /usr/local/nagios/libexec/check_nrpe -n -H 192.168.48.128

  "NRPE v2.12"

NOW: Compile with SSL support.