/etc/hosts needs to be updated then.
Here is a snippet of mine
Note that the first line is me -- the llopback, and each hostname for me. Then each line is another PC on the LAN. Also note that I am system11. System 11 is also redifined as its accesible IP. Do that too.
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost system11.amerivoice.com system11
or something. Make sure you have your loopback line
127.0.0.1 localhost linux-box.lan.com