On 09/19/2014 03:58 PM, kqt4at5v at gmail.com wrote: > On Fri, 19 Sep 2014, Reindl Harald wrote: >> Am 19.09.2014 um 15:45 schrieb kqt4at5v at gmail.com: >>> I am running CentOS 6.5. I know this is not a CentOS specific problem. >>> Netstat shows several open ports and no pid. >>> >>> tcp 0 0 *:48720 *:* LISTEN - >>> tcp 0 0 *:43422 >>> *:* LISTEN - >>> udp 0 0 *:50216 *:* >> >> alias netstat='/bin/netstat --numeric-hosts --numeric-ports --notrim >> --programs -u -t' >> /bin/netstat > This netstat show exactly the same. Lsof does not show these ports. This looks like these port are opened by kernel, not by a process, for example like nfs. regards Ulf