Hello list,
I now have some results about accounting on my machine, I'd like to
share them here on the list and maybe discuss some items.
Here we go!
I've finally set up iptables to count this way:
iptables -A INPUT -d localhost -p tcp --sport 8873
iptables -A OUTPUT -s localhost -p tcp --dport 8873
(for the SSH tunnel)
iptables -A INPUT -d localhost -s remotehost -p tcp --sport 22
iptables -A OUTPUT -s localhost -d remotehost -p tcp --dport 22
(for the SSH session)
This seems to be counting correctly the data travelling through the
tunnel, but as Les Mikesell pointed out, I'm not sure if I'm counting
the effective traffic between my BackupPC and the remote host
(comments/suggestions are welcome).
Here the counters (I know wrapping is a matter, sorry):
storebox:~# iptables -L -nv --exact
Chain INPUT (policy ACCEPT 33601114 packets, 77325739551 bytes)
pkts bytes target prot opt in out source
destination
366395 6011945400 tcp -- * * 0.0.0.0/0
127.0.0.1 tcp spt:8873
0 0 tcp -- * * 84.55.237.6
127.0.0.1 tcp spt:22
Chain OUTPUT (policy ACCEPT 20626421 packets, 41543858875 bytes)
pkts bytes target prot opt in out source
destination
365560 19459102 tcp -- * * 127.0.0.1
0.0.0.0/0 tcp dpt:8873
0 0 tcp -- * * 127.0.0.1
84.55.237.6 tcp dpt:22
The above scenario has counted 1 incr backup, which from
/var/lib/backuppc/pc/remotehost/backups shows:
26 incr 1243364401 1243484914 1519 6068956644
(first few parameters)
As you can see, the last one (size) seems to be similar to the INPUT
chain transferred bytes count... Do you think I *really* have counted
what's been transferred? The reference for the "backups" file is shown
in the docs, under "Storage Layout".
Any comments will be appreciated, thanks.
Flavio Boniforti
PIRAMIDE INFORMATICA SAGL
Via Ballerini 21
6600 Locarno
Switzerland
Phone: +41 91 751 68 81
Fax: +41 91 751 69 14
URL: http://www.piramide.ch
E-mail: flavio AT piramide DOT ch
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