Am Do, den 21.10.2004 schrieb John Garmany um 18:19: > I am looking at ways to both send and retrieve email while traveling. > Since I use hotel internet connections and public wireless connection, I > am looking at a way to secure the connection. My traveling laptop is > windows. > > My idea is this. > > 1. Connect using ssh to the Linux server with a couple of tunnels from > local ports to the mail ports. (25 Sendmail, 143 IMAP, 110 POP3) > 2. Point my email programs (Outlook for work, Thunderbird for > personnel) to the local ports connected to the tunnel > 3. Send and recieve mail. Yes, that would be a secure way. You only would have to always reconfigure your mail client to use localhost:port as the mail server address (SMTP/POP3/IMAP). > This should encrypt the connection for the mail so that no one could > monitor my passwords or read my mail. Yes, even if the hotel wireless connection is not secured against sniffing you have secure SSH tunnels. > Also Sendmail will see me as a local user (I think) and relay out my mail. Sendmail will see a relay attempt from localhost and will permit it. > Has anyone else tried this? Am I missing something. Is there an easier > way. I did so in the past. A different way would be to use webmail on your server. Force webmail to only handle HTTPS and you have encryption too. I am running this with Horde/IMP and it is very comfortable if you are travelling around. You just need a browser. > When I travel I open the mail ports throught the firewall and they get > hit pretty hard. Average about 50 failed attempts a day at logging on > as different users (nobody, guest, etc). This way I would only need to > open the ssh port. Relay attempts are pretty normal if you run an MTA. I think the nobody, guest etc. attempts you see are the login attempts with SSH we nearly all face since some month. > John Alexander -- Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13 Fedora GNU/Linux Core 2 (Tettnang) kernel 2.6.8-1.521smp Serendipity 18:38:05 up 1 day, 15:17, load average: 0.01, 0.11, 0.15
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