Fixing a 1402 error while uninstalling or installing a product:
Error 1402. Setup cannot open the registry key: UNKNOWN\Components\<very long CLASS ID ending in>0F01FEC. Verify that you have sufficient permissions to access the registry or contact Microsoft Product Support Services (PSS) for assistance. For information about how to contact PSS, see C:\Users\XXX\AppData\Local\Temp\Setup00000e60\PSS10R.Chm.
Bringing up an interface without an IP address To create a network interface without an IP address at all use the manual method and use pre-up and post-down commands to bring the interface up and down. iface eth0 inet manual pre-up ifconfig $IFACE up post-down ifconfig $IFACE down
I came across a need to enable the following links for the Apache HTTP Server, in order to enable response caching. Go to /etc/apache2 folder and give the following commands.
ln -s ../mods-available/file_cache.load file_cache.load
ln -s ../mods-available/mem_cache.conf mem_cache.conf
ln -s ../mods-available/mem_cache.load mem_cache.load
Once the above links were created, I tried to restart the server and it threw the following error