regular user can't read /proc/net/dev
问题 I'm pretty sure that I'm missing something here, but I'm not sure exactly what: This is what root can see: root@opteron16:/# ls -l | grep proc dr-xr-xr-x 290 root root 0 2012-01-14 02:03 proc root@opteron16:/# ls -l proc | grep net lrwxrwxrwx 1 root root 8 2012-01-21 03:29 net -> self/net root@opteron16:/# ls -l proc/net/ | grep dev -r--r--r-- 1 root root 0 2012-01-14 02:05 dev This is the ganglia user: root@opteron16:/# cat /etc/passwd | grep ganglia ganglia:x:111:119:Ganglia Monitor:/var