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antenna:
... please move it as appropriate.

OK, I usually access this forum by typing jriver.com into the browser, and then following the links to get to interact.

But this evening, when I enter jriver.com into my browser, I see...

--- Quote ---The following error was encountered while trying to retrieve the URL: http://jriver.com/

    Connection to 216.14.187.161 failed.

The system returned: (61) Connection refused

The remote host or network may be down. Please try the request again.
--- End quote ---

So, then i tried www.jriver.com, and, well, here I am.

More info ...

--- Quote ---% telnet jriver.com 80
Trying 216.14.187.161...
telnet: Unable to connect to remote host: Connection refused

% telnet www.jriver.com 80
Trying 216.14.187.173...
Connected to www.jriver.com.
Escape character is '^]'.
Connection closed by foreign host.

--- End quote ---


jriver.com had always worked for me, now it seems to have issues.

What changed?

Hendrik:
The servers moved over night, it should hopefully all settle soon.

zybex:
Your old DNS record had a TTL of 6 or 7 days, so access may be disrupted for some users for up to a week depending on which DNS server they use and how old their DNS cache is :/
You may want to add a temporary 'newyabb.jriver.com' and use it on the main jriver page link until this settles. A new SSL certificate may be needed for that.
Alternatively, set up 216.14.187.174 as a transparently router/forwarder to 216.14.187.173.

Access works for me with 8.8.8.8 as the DNS server, but not with my ISP's DNS.

    QUESTIONS:
        yabb.jriver.com, type = ANY, class = IN
    ANSWERS:
    ->  yabb.jriver.com
        internet address = 216.14.187.174
        ttl = 534366 (6 days 4 hours 26 mins 6 secs)

New server has 6 hours TTL, more sensible.

    QUESTIONS:
        yabb.jriver.com, type = ANY, class = IN
    ANSWERS:
    ->  yabb.jriver.com
        internet address = 216.14.187.173
        ttl = 21600 (6 hours)

antenna:

--- Quote from: zybex on March 18, 2025, 04:15:43 am ---Your old DNS record had a TTL of 6 or 7 days, so access may be disrupted for some users for up to a week depending on which DNS server they use and how old their DNS cache is :/
--- End quote ---

Thanks for that.

Before I make such changes on my servers, I always lower the TTL of the DNS entries to an hour or so to reduce these types of issues.

Once things settle, I then increase the TTL of the DNS entries.

 

antenna:

--- Quote --- ...  New server has 6 hours TTL, more sensible.
--- End quote ---

Long term?  I'd say, questionable.

But during transition evens, a TTL of an hour (or less, if your DNS provider supports it) is more sensible, imo.  That's how I handle my server.  The question becomes, how much difficulty do you want the users of your site to experience?

But I will say, YMMV.

It depends upon how the site owner wants to enable or restrict site access.
 

 

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