Re: question about network connections
On 10/26/19 3:57 AM, mick crane wrote:
hello,
what tests can I do to find out what is happening with internet
connection ?
I have pfsense as router connecting to ISP's broadband box.
I think pfsense does that DHCP but also I might have names to ipadresses
in host files but just for local network addresses.
I have debian apache on local network offering a page with links like my
bookmarks
Problem is there is one site that sometimes it loads sometimes it times
out.
I connect from windows-> apache web page of links-> internet site.
I've run wireshark in the past but have no idea what to make of the
results.
What can I run and where to see where is not working ? If is me or them.
Please post the URL for the "one site".
If all the other links work on the Apache web page of links, then the
most likely problem is related to the "one site". But if you have
problems with multiple links, I would suspect configuration settings for
the pfSense box and/or the ISP gateway. If you have a reputable ISP, it
is unlikely the problem is their equipment.
As another reader suggested, divide and conquer -- plug a laptop
directly in to the ISP gateway and test. Then insert pfSense and test.
Michael W. Lucas, 2015, "Networking for System Administrators", is helpful:
https://mwl.io/nonfiction/networking#n4sa
In any case, beware that changes to networks and networked devices can
take minutes, hours, or days to propagate throughout the entire system.
I have seriously confused myself more than once by making changes faster
than the total system can react. If you are working within a LAN, one
approach is to make a change, do an orderly power down of all equipment
(phones, pads, pods, computers, printers, routers, gateways, modems,
access points, etc.,), and then do an orderly power up, one device at a
time, and verify everything as you go. For external resources where you
have root access, you can restart services and/or reboot. But,
sometimes all you can do is wait and see.
David
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