This is strange... Do you have SSL aktive on both systems? Run nrpr localy without parameters (this should return some nrpe stats) and check ldd for libssl. Am 01.05.2015 07:32 schrieb "Tim Dunphy" <bluethundr at gmail.com>: > Hi Eric, > > Thanks for your reply. I do have nrpe running under xinetd on the host I'm > trying to monitor. > > And running the nrpe checl locally: > > [root at ops:~] #/usr/local/nagios/libexec/check_nrpe -H localhost > NRPE v2.15 > > [root at ops:~] #grep only_from /etc/xinetd.d/nrpe > only_from = 127.0.0.1 216.120.248.126 > > And I do have port 5666 open on the security group for this host. > > And I made sure the local firewall was stopped, because I am blocking ports > with the security groups instead. > > [root at ops:~] #service iptables status > Firewall is stopped. > > It's only when checking from the monitoring host that nrpe fails: > > [root at monitor1:~] #/usr/local/nagios/libexec/check_nrpe -H > ops.jokefire.com > CHECK_NRPE: Error - Could not complete SSL handshake. > > Really, really puzzling. This is driving me up a wall!! I hopeI can solve > this soon.... > > Thanks for any and all help with this one!! > Tim > > On Fri, May 1, 2015 at 1:02 AM, Eric Lehmann <e.lehmann88 at gmail.com> > wrote: > > > Hi > > Does the deamon run under xinetd? Then you have to configure the > only_from > > in */etc/**xinetd.d**/**nrpe* to. > > > > Regards > > Eric > > Am 01.05.2015 06:46 schrieb "Tim Dunphy" <bluethundr at gmail.com>: > > > > > Hello, > > > > > > I am trying to monitor a host in the Amazon EC2 cloud. > > > > > > Yet when I try to check NRPE from the monitoring host I am getting an > SSL > > > handshake error: > > > > > > [root at monitor1:~] #/usr/local/nagios/libexec/check_nrpe -H > > > ops.jokefire.com > > > CHECK_NRPE: Error - Could not complete SSL handshake. > > > > > > And if I telnet into the host on port 5666 to see if the FW port is > open, > > > the connection closes right away: > > > > > > [root at monitor1:~] #telnet ops.somewhere.com 5666 > > > Trying 54.225.218.125... > > > Connected to ops.somewhere.com. > > > Escape character is '^]'. > > > Connection closed by foreign host. > > > > > > You can see there it connects, but then it closes immediately after the > > > connection. > > > > > > I have NRPE running on the host I want to monitor: > > > > > > [root at ops:~] #lsof -i :5666 > > > COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME > > > xinetd 1434 root 5u IPv4 4063 TCP *:nrpe (LISTEN) > > > > > > And I have the IP of my nagios server listed in the xinetd conf file: > > > > > > [root at ops:~] #cat /etc/xinetd.d/nrpe > > > # default: on > > > # description: NRPE (Nagios Remote Plugin Executor) > > > service nrpe > > > { > > > flags = REUSE > > > socket_type = stream > > > port = 5666 > > > wait = no > > > user = nagios > > > group = nagios > > > server = /usr/local/nagios/bin/nrpe > > > server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd > > > log_on_failure += USERID > > > disable = no > > > only_from = 127.0.0.1 xx.xx.xx.xx # <- representing my > > real > > > nagios server IP > > > } > > > > > > > > > > > > And I have my default security group for that host open on port 5666 to > > the > > > world for this experiment. I plan on locking that down again to the > > single > > > IP of my monitoring host once I get this resolved. > > > > > > Does anyone have any suggestions on how I can get that problem solved? > > > > > > Thanks, > > > Tim > > > > > > -- > > > GPG me!! > > > > > > gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B > > > _______________________________________________ > > > CentOS mailing list > > > CentOS at centos.org > > > http://lists.centos.org/mailman/listinfo/centos > > > > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > > -- > GPG me!! > > gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >