It didn't seem likely that "convert" would die, as the script logged into the server that I was using to execute convert and I only executed convert once on that server:
for FILE in $(cat $FILES)
do
COUNT=$(expr $COUNT + 1)
NEWFILE=$(echo $FILE | sed 's/Remote\(.*\)/new\/\1/g')
echo "FILE $COUNT of $NUMFILES is $FILE, NEWFILE is $NEWFILE"
echo "converting $FILE to $NEWFILE"
ssh $CRED "/opt/local/bin/convert -verbose -resize 1920x1280 $FILE $NEWFILE"
echo
#break
done
do
COUNT=$(expr $COUNT + 1)
NEWFILE=$(echo $FILE | sed 's/Remote\(.*\)/new\/\1/g')
echo "FILE $COUNT of $NUMFILES is $FILE, NEWFILE is $NEWFILE"
echo "converting $FILE to $NEWFILE"
ssh $CRED "/opt/local/bin/convert -verbose -resize 1920x1280 $FILE $NEWFILE"
echo
#break
done
Snooping in /var/log/syslog, I found that the DHCP server was renewing my IP address every 28 minutes or so:
Sep 8 07:47:52 ubuntu NetworkManager: address 192.168.0.95
Sep 8 05:02:22 ubuntu NetworkManager: address 192.168.0.95
Sep 8 05:26:27 ubuntu NetworkManager: DHCP: device eth0 state changed bound -> expire
Sep 8 05:26:27 ubuntu NetworkManager: DHCP: device eth0 state changed expire -> preinit
Sep 8 05:26:28 ubuntu NetworkManager: address 192.168.0.96
Sep 8 05:53:04 ubuntu NetworkManager: DHCP: device eth0 state changed bound -> expire
Sep 8 05:53:04 ubuntu NetworkManager: DHCP: device eth0 state changed expire -> preinit
Sep 8 05:53:08 ubuntu NetworkManager: address 192.168.0.97
Sep 8 06:21:25 ubuntu NetworkManager: DHCP: device eth0 state changed bound -> expire
Sep 8 06:21:25 ubuntu NetworkManager: DHCP: device eth0 state changed expire -> preinit
Sep 8 06:21:26 ubuntu NetworkManager: address 192.168.0.98
Sep 8 06:50:47 ubuntu NetworkManager: DHCP: device eth0 state changed bound -> expire
Sep 8 06:50:47 ubuntu NetworkManager: DHCP: device eth0 state changed expire -> preinit
What the hell? So I manually set the IP address of the box using these instructions from Jonathan Moeller:
Sep 8 07:47:52 ubuntu NetworkManager:
Sep 8 05:02:22 ubuntu NetworkManager:
Sep 8 05:26:27 ubuntu NetworkManager:
Sep 8 05:26:27 ubuntu NetworkManager:
Sep 8 05:26:28 ubuntu NetworkManager:
Sep 8 05:53:04 ubuntu NetworkManager:
Sep 8 05:53:04 ubuntu NetworkManager:
Sep 8 05:53:08 ubuntu NetworkManager:
Sep 8 06:21:25 ubuntu NetworkManager:
Sep 8 06:21:25 ubuntu NetworkManager:
Sep 8 06:21:26 ubuntu NetworkManager:
Sep 8 06:50:47 ubuntu NetworkManager:
Sep 8 06:50:47 ubuntu NetworkManager:
What the hell? So I manually set the IP address of the box using these instructions from Jonathan Moeller:
The comment from Anurag fit my bill the best; ie, giving the complete network info to the /etc/network/interfaces files, including network and broadcast IPs.
ubuntu:~$ cat /etc/network/interfaces
auto eth0
iface eth0 inet static
address 192.168.0.98
netmask 255.255.255.0
gateway 192.168.0.1
network 192.168.0.0
broadcast 192.168.0.255
auto eth0
iface eth0 inet static
address 192.168.0.98
netmask 255.255.255.0
gateway 192.168.0.1
network 192.168.0.0
broadcast 192.168.0.255
cheers,
sodo
Update 2010/09/13
Here's an example of a simple interfaces file with dynamic setting:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp