slow rsync speeds for LAN transfer but not remote transfer

molofishy

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I'm trying to transfer a bunch of movies (.mv4; ~400mb each) from my freebsd server to my mac on my local area network, with:
Bash:
rsync --progress -vvr oliver@myserver.ddns.net:/home/oliver/family_videos .
The transfer is excruciatingly slow (75kb/s)

I can download files with my internet connection from servers on the other side of the world at a much faster speed!

What is odd is that when I am outside my LAN (connecting my laptop to my phone's hotspot), the transfer speed of the above rsync call is significantly faster. Same goes for loading a webpage hosted on the server: loading time is much faster outside the LAN than within the LAN.

Happy to provide the results of any diagnostic commands to help you identify the issue...
 

SirDice

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You're not connecting to a local address. You're connecting to your external address (myserver.ddns.net). Which causes your home internet router to try and do a hairpin. Hairpinning usually doesn't even work (on cheap SOHO modem/routers), so getting 75KB/s is already more than I expected.

Use rsync(1) to the internal address.
 
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molofishy

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Great - now I'm getting 50mb/s speeds with:
Bash:
rsync --progress -vvr oliver@192.168.0.10:/home/oliver/family_videos .
Also, to view my website, navigating to:
is much faster than

Is there a way I can always ssh into the same address & navigate to the same url to view my website? Otherwise I have to have 2 aliases/browser shortcuts depending on whether I am in / out of the LAN

I have set
Code:
UseDNS no
in /etc/ssh/sshd_config

But that didn't seem to help.
 

SirDice

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Is there a way I can always ssh into the same address & navigate to the same url to view my website? Otherwise I have to have 2 aliases/browser shortcuts depending on whether I am in / out of the LAN
Nothing "easy". One way to solve it is to use an internal DNS server to translate internal requests to internal addresses. A so-called split-horizon DNS.
 
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