How to add user to Konica Minolta account track to print

Login as administrator, default password 12345678 -> User Auth/Account Track -> Account Track Settings -> New Registration button -> Type a password and name
Printer properties -> Under General, Preferences... -> Under Basic, Under Authentication/Account Track -> Under Account Track, enter info -> Verify -> OK

CentOS Web Server Port 80 iptables

Setup Apache on your web server, but webpage does not show.

iptables -I INPUT -p tcp --dport 80 -j ACCEPT
service iptables save

CentOS SSH Port Change

Changed port in /etc/ssh/sshd_config, what else is needed?

iptables -I INPUT -p tcp --dport PORT-NUMBER -j ACCEPT
service iptables save

Reset Windows 7 Windows Update

Windows Update failed to install unknown error. This is to clean up Windows Update, the patches might already been installed and still shows up in the list.

Reference: https://support.microsoft.com/en-us/kb/971058

net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc

rmdir /s %systemroot%\SoftwareDistribution
rmdir /s %systemroot%\system32\catroot2

net start bits
net start wuauserv
net start appidsvc
net start cryptsvc

CentOS 6.6 eth0 network not working

After installing CentOS 6.6, eth0 exists in list running "ifconfig -a", but no inet addr. eth0 is not active

"vi /etc/sysconfig/network-scripts/ifcfg-eth0", change "ONBOOT=no" to "ONBOOT=yes"
esc :wq
"service network restart"