[CentOS] Host does not respond to nmap

Mon Aug 24 00:34:46 UTC 2015
Mark LaPierre <marklapier at gmail.com>

Hey Y'all,

I just set up a new old machine on my network.  I did a net install of
CentOS 6.7 on it replacing an outdated copy of Win XP.  Of course I'm
now in the throws of configuring the machine to be a useful member of
society.

[mlapier at peach ~]$ nmap -sn 192.168.15.0/24

Starting Nmap 5.51 ( http://nmap.org ) at 2015-08-23 20:12 EDT
Nmap scan report for 192.168.15.1
Host is up (0.00043s latency).
Nmap scan report for 192.168.15.100
Host is up (0.00014s latency).
Nmap scan report for 192.168.15.101
Host is up (0.00065s latency).
Nmap scan report for 192.168.15.104
Host is up (0.00017s latency).
Nmap scan report for mushroom.patch (192.168.15.105)
Host is up (0.00015s latency).
Nmap done: 256 IP addresses (5 hosts up) scanned in 15.30 seconds

[mlapier at peach ~]$ ping -c 1 192.168.15.107
PING 192.168.15.107 (192.168.15.107) 56(84) bytes of data.
64 bytes from 192.168.15.107: icmp_seq=1 ttl=64 time=0.175 ms

--- 192.168.15.107 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.175/0.175/0.175/0.000 ms
[mlapier at peach ~]$

I can ssh onto 192.168.15.107 too.

I spent a good part of the day trying to connect the FAHControl on my
machine to the Folding at Home client on 192.168.15.107 without success.
Maybe the reason why 192.168.15.107 does not appear on the nmap output
has something to do with my lack of success connecting the control to
the client.  Maybe not.

I'm not having any problem connecting to the FAH client on
192.168.15.105 from my machine.  I even copied the FAH configuration
file from 192.168.15.105 to 192.168.15.107 and then restarted the
client.  Still no joy in Mudville.  I figure I should quit while I'm
behind.  Anyone have any suggestions?

-- 
    _
   °v°
  /(_)\
   ^ ^  Mark LaPierre
Registered Linux user No #267004
https://linuxcounter.net/
****