Tag Archives: connection

Scalix Administration – Useful Commands

… error: spamassassin –lint restart spamd /etc/init.d/spamd stop and then /etc/init.d/spamd start Check bounces email on Postfix tail -f /var/log/mail | grep NOQUEUE Troubleshoot sending or receiving Check the ldapmapper and make sure it’s working. /etc/init.d/ldapmapper status /etc/init.d/ldapmapper stop /etc/init.d/ldapmapper restart Check the sendmail daemon – make sure it’s working. ps aux |grep sendmail You should see two things: Accept connection and Queue control …

Troubleshoot a Slow Computer Network – Only One Computer on the Network is Slow

… assign more than on default route to the same computer. Do not confuse load balancing with multiple Default Gateways. You are configuring two network cards, and both of them have a default gateway. This configuration will not work. Usually, a Windows computer will warn you that this is not a good idea, but some users will choose to ignore the warning. This is a typical problem for laptop users, they connect into the Lan environment and leave the wireless connection on. This will create a lot of …

Computer Network – Tools and Supplies

Punch down tool – The punch tool is used to insert the network cable in the patch panel or similar connection panels. For a small network up to 7 devices you might not need it as you can easily connect all of your devices directly into the switch. Keystone Jacks – The RJ45 keystone jack is the female connector, usually immobile, part of a network connection that is mounted on the wall or similar. It provides a network connection close to the device to be connected. A …