guys/experts:
this sometimes confuse me...
say I have a PC named "ping-new-laptop", I connected to my company
wireless ,through DHCP I got an IP address
Wireless LAN adapter Wireless Network Connection:
Connection-specific DNS Suffix . : abc.net
Description . . . . . . . . . . . : Broadcom 4313GN 802.11b/g/n 1x1
Wi-Fi Adapter
Physical Address. . . . . . . . . : 7C-E9-D3-08-DD-F0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . :
fe80::7d29:2056:c479:6d36%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.10.144(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Lease Obtained. . . . . . . . . . : Thursday, July 05, 2012 3:30:18 PM
Lease Expires . . . . . . . . . . : Friday, July 06, 2012 3:37:55 AM
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.8.5
DHCPv6 IAID . . . . . . . . . . . : 249877821
DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-16-EA-C4-2D-B4-99-BA-F6-22-C8
DNS Servers . . . . . . . . . . . : 8.8.8.8
8.8.4.4
NetBIOS over Tcpip. . . . . . . . : Enabled
on top of it I connect into VPN and got another IP:
Ethernet adapter Local Area Connection* 12:
Connection-specific DNS Suffix . : abc.net
Description . . . . . . . . . . . : abc Network Connect Virtual Adapter
Physical Address. . . . . . . . . : 00-FF-B0-4B-B5-07
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . :
fe80::3daf:d50b:edcb:3903%20(Preferred)
IPv4 Address. . . . . . . . . . . : 172.28.130.42(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Lease Obtained. . . . . . . . . . : Thursday, July 05, 2012 3:32:37 PM
Lease Expires . . . . . . . . . . : Thursday, July 12, 2012 3:32:40 PM
Default Gateway . . . . . . . . . : 0.0.0.0
DHCP Server . . . . . . . . . . . : 172.28.128.1
DHCPv6 IAID . . . . . . . . . . . : 503381872
DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-16-EA-C4-2D-B4-99-BA-F6-22-C8
DNS Servers . . . . . . . . . . . : 172.28.144.15
172.24.245.15
Primary WINS Server . . . . . . . : 172.28.144.10
NetBIOS over Tcpip. . . . . . . . : Enabled
that way I'm online ,working, without any issue.
//my hostname
[ping@ping-new-laptop ~]$ hostname
ping-new-laptop
//I can ping my name from local, resolved to my IP
[ping@ping-new-laptop ~]$ ping ping-new-laptop
PING ping-new-laptop (172.28.130.42): 56 data bytes
64 bytes from 172.28.130.42: icmp_seq=0 ttl=128 time=1 ms
//but this doesn't resolve
anotherPC$ ping ping-new-laptop
ping: unknown host ping-new-laptop
----ping-new-laptop PING Statistics----
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip (ms) min/avg/max/med = 1/1/1/1
now the annoying part is, since both IP addresses are assigned
dynamically and varies everytime, if I want to connect into from another
PC, I have to know what's the IP addresses I need to connect to. if for
some reason there is short transient issue that make it disconnected and
got a new IP, I have no idea what it is and in the worst case if I have
to connect in, I need to drive miles and go to the office... and for
SSH, this will add a new entry to my known_hosts file everytime the IP
changes. which is not a big deal though.
if there anyway that I can just announce my hostname into the network,
so I can simply use my hostname or any other fix name to represent my
laptop in the network, so I don't need to worry about the IP?
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