(Frequently, I can solve a problem by searching the web, because somebody else has already experienced my problem, solved it, and documented the solution on a webpage. Here I have tried to return the favor, and document a solution I've had to cobble together on my own.)
ipconfigcommand in Mac OS X
The manpage for
ipconfig is typically cryptic. It appears
that it can be used to release/renew the DHCP address of the primary
Ethernet interface (
en0) as follows:
# sudo ipconfig set en0 NONE # to release
# sudo ipconfig set en0 DHCP # to renew
However, this doesn't appear to be a true release/renew; rather, it looks more like a heavier "turn off/turn on" such as:
# sudo ifconfig en0 down # to turn off
# sudo ifconfig en0 up # to turn on
However, the ipconfig commands seem to work more reliably than the ifconfig commands; I found one occurrence of Mac OS X turning
en0 back on spontaneously after I had used ifconfig
to bring it down.
It looks like the ipconfig command may be used for DHCP diagnostics
as well, but the syntax is even more cryptic:
# ipconfig getoption en0 1 # returns assigned netmask
# ipconfig getoption en0 3 # returns assigned ip address
# ipconfig getoption en0 6 # returns first assigned domain name server
# ipconfig getoption en0 15 # returns assigned domain name
# ipconfig getoption en0 44 # returns first assigned Microsoft WINS server
# ipconfig getoption en0 51 # returns an integer, I'm not sure what it means
# ipconfig getoption en0 53 # returns an integer, I'm not sure what it means
# ipconfig getoption en0 54 # returns an IP addres, I'm not sure what it means - the assigning DHCP server's address, perhaps?
# ipconfig getoption en0 58 # returns an integer, I'm not sure what it means
I found a little bit more of a writeup about this by A. P. Lawrence.
HP no longer offers their JetAdmin or WebJetAdmin tool for Solaris,
but they do make available a Solaris package called "HP Jetdirect
Printer Installer." I downloaded that from HP's web site as a file
named SOLe134.PKG, installed it, and attempted to run the installer
(/usr/bin/hppi) to install the print queue.
After answering the prompts, it failed with the message:
The print scheduler is not running, cannot proceed!
I created a null print queue using the single Solaris command:
# lpadmin -p null -v /dev/null
That was enough to get the print scheduler running; /usr/bin/hppi added my real queue with no trouble after that.