On 11/01/2015 07:40 AM, Timothy Murphy wrote:> ken wrote: > >> On 10/30/2015 09:01 AM, Timothy Murphy wrote: >>>>> So I guess the strange IP address probably comes from some Lite-On >>>>> device somewhere in my house - maybe on the server itself, an HP >>>>> MicroServer. There are so many possible electronic culprits today. >>>> You should be able to use nmap to scan the device. >>> Thanks very much for the suggestion, I'll try that. >> Try putting this line >> IPV6INIT=no >> in the relevant config file, probably something like >> /etc/sysconfig/networking/devices/ifcfg-eth? >> then restart your network. > I don't have a directory /etc/sysconfig/networking/ on my CentOS-7 server, > but I have IPV6INIT=no in /etc/sysconfig/network-scripts/ifcfg-enp{23}s0 . > > Incidentally, I haven't yet worked out how to get any useful information > from nmap, as suggested by Johnny Hughes - I only get information > about open ports, which is interesting but not relevant to my query > about the 169.254.* address appearing in "arp -a" on my server. > I looked at "man nmap" but there seem to be an infinity of options. > >assuming nmap says there's a web server running, can you connect to it? how did you run nmap against it? I'd think you would have to create a dummy interface on the same network range to be able to communicate to it. I suspect something like a service processor/ilo/rilo/whatever HP calls their management interface. could you have powered the machine up first then waited a little while before putting network cables in, esp in the one labeled 'mgmt'? -- public gpg key id: 1362BA1A
zep wrote:>> Incidentally, I haven't yet worked out how to get any useful information >> from nmap, as suggested by Johnny Hughes - I only get information >> about open ports, which is interesting but not relevant to my query >> about the 169.254.* address appearing in "arp -a" on my server. >> I looked at "man nmap" but there seem to be an infinity of options.> assuming nmap says there's a web server running, can you connect to > it?Thank you for your response. However, you would probably have to give specific commands for me to understand your suggestions. There is a web server running on my home server "helen" at 192.168.2.5 which I can access with Firefox or Chrome by browsing to "helen". (The server is accessible remotely at www.gayleard.com .) How do you suggest I use nmap to find if there is a web server running? "sudo nmap -v -sn 192.168.0.0/16 10.0.0.0/8" tells me Nmap scan report for helen (192.168.2.5) Host is up (0.0037s latency). MAC Address: 00:1B:21:9F:36:DB (Intel Corporate) but I already knew that from "arp -a".> how did you run nmap against it? I'd think you would have to > create a dummy interface on the same network range to be able to > communicate to it.I'm not sure what that means.> I suspect something like a service > processor/ilo/rilo/whatever HP calls their management interface. > could you have powered the machine up first then waited a little while > before putting network cables in, esp in the one labeled 'mgmt'?Again, I'm not sure what you mean. "sudo locate rilo" doesn't find anything on my HP Microserver, which is running under CentOS-7.1 . Does HP have a "management interface" on my server? What would it be called? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin
On 11/1/2015 12:59 PM, Timothy Murphy wrote:> Again, I'm not sure what you mean. > "sudo locate rilo" doesn't find anything on my HP Microserver, > which is running under CentOS-7.1 . > Does HP have a "management interface" on my server? > What would it be called?the "gen0" original microservers with the NxxL "Neo" processors have a OPTIONAL remote management card that implments IPMI and iLO. I don't have one in mine. here's someones blog about bringing his up. https://www.liquidstate.net/hp-microserver-n40l/ -- john r pierce, recycling bits in santa cruz