nagios Connection refused by host

服务端(192.168.2.110)无法访问客户端的NRPE: [root@node1 ~]# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1NRPE v2.12[root@node1 ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.2.120Connection refused by host 客户端(192.168.2.120)：[root@node120 etc]# lsof -i :5666COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAMEnrpe 18703 nagios 4u IPv4 85766 0t0 TCP localhost:5666 (LISTEN)#只在本地有效，所有外部的IP无法访问[root@node120 etc]# vim nrpe.conf +44将以下内容注释掉：#server_address=127.0.0.1[root@node120 etc]# pkill nrpe[root@node120 etc]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d[root@node120 etc]# lsof -i :5666COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAMEnrpe 18766 nagios 4u IPv4 89670 0t0 TCP *:5666 (LISTEN)这个就可以正常访问了 服务端访问：[root@node1 etc]# /usr/local/nagios/libexec/check_nrpe -H 192.168.2.120 -c check_iostatIOSTAT OK - user 0.28 nice 0.00 sys 0.30 iowait 0.31 idle 0.00 | iowait=0.31%;; idle=0.00%;; user=0.28%;; nice=0.00%;; sys=0.30%;;