On 12/10/2014 12:47 PM, Dan Hyatt wrote:
I've a virtual instance and I need to know its IP address after it has finished booting up, to know where to ssh into it. I've tried adding "ip -4 addr > /dev/tty0" to rc.local, but that obviously doesn't work, because the login prompt overwrites everything I do.
The easy answer would be: don't fight the login prompt.  "agetty" writes 
the contents of /etc/issue to the console before the login prompt.  If 
/etc/issue contains "\4" then agetty will print the IPv4 address to the 
console.
See the man page for agetty, and update /etc/issue.
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