Re: Check Update, Update and Port Blocking
On 02/17/2014 09:28 PM, Bill Wood wrote:
> Do the protocols used for automatic check for updates and for updates
> require specific ports to be available? I recently switched my cable
> modem to a Comcast Internet Gateway 1with the firewall set to high
> security and subsequently a couple of update check icons appeared
> indicating an error condition to to failure to access a file server.
I could be wrong, but my understanding is that apt uses standard http,
so port 80 outgoing.
Could it be dns problems? Check /etc/apt/sources.list and any files in
/etc/apt/sources.list.d/ and see if you can reach them in a web browser
form that system.
>
> I am currently running Debian 6.0.9 (Squeeze) stable. I want to upgrade
> to 7 but don't want to get hung up with bad downloads due to port
> blocking by the firewall.
>
> Thanks,
>
Use the -d option with apt-get. It means download only, so you'll see
if there are bad/missing downloads without actually starting the upgrade.
- PaulNM
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