> hello, > all! > if i want to use lvs function of keepalived , i must install ipvsadm ? > tks! I haven't used keepalived with lvs in ages, but I believe it works directly with the kernel, and therefore does not strictly require ipvsadm. Please note that ipvsadm is a userspace tool for manipulating/querying ipvs entries and is very useful. I've never used lvs on any machine where I didn't also install ipvsadm. Hope this helps, Barry