Red Hat Bugzilla – Bug 829632
RFE: ss -a should display socket type for each record
Last modified: 2013-01-17 03:16:30 EST
Listing all sockets with `ss' command from iproute-2.6.39-6.fc16.x86_64 looks so:
# ss -aln | head
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 10 127.0.0.1:25 *:*
LISTEN 0 64 *:44858 *:*
LISTEN 0 64 :::2049 :::*
LISTEN 0 64 *:2049 *:*
LISTEN 0 128 *:52033 *:*
LISTEN 0 20 *:10245 *:*
LISTEN 0 128 *:875 *:*
LISTEN 0 128 :::37932 :::*
LISTEN 0 64 :::46989 :::*
I think a column with socket type (TCP, UDP, etc.) would be appropriate. It's not possible to distinguish sockets of the same address family now.
The socket type is displayed if the filter contains more than one type.
Accidentally, '-a/--all' currently behaves just like '-t/--tcp', resulting in only TCP sockets being listen (and thus omitting the type column entirely).
This will get fixed along with bug #829630. I'd suggest using e.g. '-tu' to list both TCP and UDP sockets (as well as the type column) meanwhile.
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Bug #829630 closed, closing as well.