In the following, we give an example of how to set up ddclient using the German Internet hosting provider Strato. daemon_interval = "300" Example: Strato DynDNS ¶ # This option only takes effect if the ddclient runs in daemon mode. run_daemon = "true" # Set the time interval between the updates of the dynamic DNS name in seconds. run_ipup = "false" # Set to "true" if ddclient should run in daemon mode # If this is changed to true, run_ipup and run_dhclient must be set to false. This might be useful, if you are using dial-on-demand. run_dhclient = "false" # Set to "true" if ddclient should be run every time a new ppp connection is # established. Feb 22:29: # /etc/default/ddclient # Set to "true" if ddclient should be run every time DHCP client ('dhclient' # from package isc-dhcp-client) updates the systems IP address. # Configuration for ddclient scripts # generated from debconf on Do 9. Dump the static IP.Optional: Dual operation: LAN & VPN at the same time Yes, the IP address that I, and any authorized remote client users have, gets logged, just as they will log yours.)Īgain, bottom line? Save a few buck$. It'll be no different with your webhost/shell account provider. But I get in to my home computer via ssh no problem. When I am on business travel, Lord only knows what IP address I'll get at some hotel someplace. They tunnel their afp, imap, and smtp connections through secure shell (only my upstream MTA/MX agent is permitted access to my smtp port). (As an additional sidenote, I have my own little very-small-scale mail and file server - itself on a dynamic IP address - courtesy of the dyndns stuff I mentioned earlier - running at home for the benefit of family members, the majority of which no longer live here. But think about it - ssh was made to facilitate connections and protect traffic across the untrusted internet while preventing unauthorized access.) But I've never heard of any ISP doing that. Conceivably, they could restrict shell account access to their servers to only come from IP addresses within their own block of IP addresses, so if you had a failure with this test, you'd want to use a friend's computer that had the same ISP as you do. (There could be one "gotcha" with such a test and that would be if the website/shell account host was also your internet provider. When using OpenDNS, the purpose of dynamic DNS is to preserve your OpenDNS preferences if your ISP or network operator changes your IP address. This container packs the ddclient application to accomplish this. Different IP address than at home, right? That would prove it to you. open-dns-ip-updater This is a simple Docker container for updating OpenDNS IP address. Dump the static IP and save yourself a few buck$.Īnd as Caleb suggested, as a test, got a friend with a Mac? Got one at work? Got an Apple store nearby? Pay them a visit, launch Terminal.app, and ssh to your shell account. So never mind about the dyndns stuff.Īs Caleb, Gnarlodius, et.al, have stated or suggested, the website host isn't going to care what IP address you are ssh'ing into your shell account from. Oh! I thought you were asking about the gotchas involved with setting up a website on a dynamic IP address like on your home computer, and ssh'ing into it remotely for maintenance, like when you were on business travel or something - NOT maintaining a website on some webhost's server someplace and wanting to ssh into your shell account there from home in order to maintain the site. Q3: Is there anything special I might do to verify this method before changing over to dynamic IP service? Q1: Is there a way to use plain ssh with dynamic IP? I suppose if there is no choice I would have to figure out why these are failing.and hopefully find a fix.īut I would 'druther use plain ssh if at all possible. My web host service (bluehost) supports two alternative web-based SSH clients, but I've had real difficulties working with these - they don't seem to connect reliably at all. Is there a way to continue using SSH as before after I switch to dynamic IP service? If so, it seems that SSH will no longer work if I try to connect from a different IP address for each session, which is what will happen with the cheaper service. I'm vaguely aware that ssh security requires the host to recognize my client IP address before granting access. I'd like to change to cheaper dynamic IP service. I depend on plain old ssh to maintain sites.īUT, my ADSL service is static IP, for which I pay a premium. % ssh worked flawlessly for me for years. Opening an OS X terminal window and uttering
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