{"id":831,"date":"2014-08-20T11:17:00","date_gmt":"2014-08-20T16:17:00","guid":{"rendered":"https:\/\/www.softwareab.net\/wordpress\/?p=831"},"modified":"2014-08-20T11:17:00","modified_gmt":"2014-08-20T16:17:00","slug":"centos-wireless-problems-dumping-networkmanager","status":"publish","type":"post","link":"https:\/\/www.softwareab.net\/wordpress\/centos-wireless-problems-dumping-networkmanager\/","title":{"rendered":"CentOS Wireless Problems and Dumping NetworkManager"},"content":{"rendered":"

Hello All, it’s been a while since I’ve posted. This post will discuss how you can dump NetworkManager<\/a> and still get your wireless to work on Linux (CentOS 6.5, specifically). Read on for more!<\/p>\n

<\/p>\n

What’s the Problem?<\/h3>\n

All of a sudden, I noticed that NetworkManager simply wasn’t working for me. I’m sure it was the result of some update or other (after all, I develop a lot and software comes\/goes constantly on my systems). I really don’t care why it didn’t work. And I’m not alone: as these threads<\/a> reveals, NetworkManager has a shoddy reputation. So instead of spending lots of time solving the problem, let’s see if we can just dump it.<\/p>\n

Stop NetworkManager in its Tracks…<\/h3>\n

While deinstalling NetworkManager would work, let’s not be so hasty. Instead run these commands:<\/p>\n

\r\nsudo service NetworkManager stop\r\nsudo chkconfig NetworkManager off\r\n<\/pre>\n
Those commands stop the service, and prevent it from restarting.<\/p>\n
Next, let’s change the NM_CONTROLLED<\/code> flag in all of the \/etc\/sysconfig\/network-scripts\/ifcfg-XXX<\/code> files:<\/p>\n
\r\nfor i in \/etc\/sysconfig\/network-scripts\/ifcfg-*; do\r\n  sudo sed -i -e 's#NM_CONTROLLED=\\(.*\\)#NM_CONTROLLED=no#' $i\r\ndone\r\n<\/pre>\n
…and use wpa_supplicant<\/code><\/h3>\n
Let’s replace NetworkManager<\/a> with wpa_supplicant<\/code><\/a>. It cross-platform supplicant with support for most wireless encryption types<\/a> (WEP, WPA and WPA2) and is suitable for desktops, laptops and embedded systems.<\/p>\n
But before we jump into wpa_supplicant<\/code>, let’s check out a few things first:<\/p>\n