Re: [gentoo-user] proper proxy syntax to synchronize time via rdate

[Roman Zilka <rzilka@gvid.cz>]

Hi Liviu,

it seems you're only allowed to access web, FTP and rsync services on
the Internet through your proxy. Both rsync and NTP use their own ports
and protocols, different from HTTP/FTP/rsync. Firstly, you need a proxy
server (or some other form of tunnel) that will allow for rdate/NTP
traffic between your computer and Internet.

Secondly, you have to configure rdate/NTP to make use of the proxy, but
AFAIK there's nothing like ntp_proxy or rdate_proxy env. variables
these programs would honor. Instead, timeserver proxies are more common
in the form of a local timeserver which sync's with an external
timesource and offers its services to the local network via standard
protocols. You would then sync time using this proxy directly, e.g.
"rdate -s timeproxy.localaddress.dom". Try asking around if there's such
a service available in your local network.

-Roman


> Hello everyone,
> 
> I'm trying to synchronize the system time with the help of rdate
> (openNTPD is on the list in case of failure). I have one problem,
> though: I connect to the Internet through a proxy server. I have set
> up the necessary environment, but I doubt that rdate listens to it:
> 
> localhost init.d # env | grep -i proxy
> http_proxy=proxy.address.dom:port
> ftp_proxy=proxy.address.dom:port
> rsync_proxy=proxy.address.dom:port
> https_proxy=proxy.address.dom:port
> 
> localhost init.d # rdate pool.ntp.org
> rdate: couldn't connect to host pool.ntp.org: Connection refused
> 
> Please advise on how to correctly specify the proxy server in the NTP
> server address. I am wondering if there is a syntax similar to
> proxy.address.dom:port@pool.ntp.org. Alternatively, how can I make
> rdate honour the proxy settings?
> 
> Regards,
> Liviu
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