I have a sever with 2 network cards, an internal IP on one card (eth0) and external IPs (aliased) on the other card (eth1). I lost connection the public network and I tried to restart networking with /etc/init.d/networking restart and got the error "SIOCSIFFLAGS: cannot assing requested IP and Failed to bring up eth1".
I am very new to Linux, but i want to learn it :-)
I have a problem with my wlan0 interface after exiting WPA_Supplicant with ^C. The Interface seems to be broken.....
The first connection with WPA_Supplicant works like a charm, i can surf the web, access SSH by another PC and do all the Internet things :-)
After exiting WPA_Supplicant, i cant bring the interface UP again with ifconfig.
I swapped one of my HDDs and then I put the one I had first back. Then, Grub wasnt working, so I had to fix it. After I fixed it, my WiFi wasnt working. It was before. It appears as unavailable. Here are some logs:
On the logs, it appears as disabled, but I have it enabled.
sudo ifconfig wlan0 up returns: SIOCSIFFLAGS: Input/output error
Okay, I've been using Arch for about a year now and I have randomly hit a bug. I was at a friend's house with my laptop using the internet and wifi fine, I come home turn on my laptop and I noticed the little orange LED that shows my wifi isn't on and my laptop refuses to connect to the internet.
While testing a script which takes wlan0 up/down, I've discovered that I can no longer access that interface. Example if I try to bring it up:
ifconfig wlan0 up
wlan0: unknown interface: No such device
BTW this is 13.37 system
The only way I have rectified the problem is rebooting. Is there a more gracious way of fixing this?