[squid-users] R: How to definitively disable IPv6

Troiano Alessio alessio.troiano at leonardocompany.com
Mon Jan 28 08:19:20 UTC 2019


> > Anyway squid try to connect to the IPv6 address instead of IPv4 and
> > I’m not able to reach it:
> >
> > C:\Users\atroiano>nslookup download.pdfforge.org
> >
> > Server:  espevmdxxxx.xxxx.prv
> >
> > Address:  172.x.x.x
> >
> >
> >
> > Risposta da un server non autorevole:
> >
> > Nome:    download.pdfforge.org
> >
> > Addresses:  2001:4860:4802:38::15
> >
> >           2001:4860:4802:34::15
> >
> >           2001:4860:4802:32::15
> >
> >           2001:4860:4802:36::15
> >
> >           216.239.32.21
> >
> >           216.239.38.21
> >
> >           216.239.36.21
> >
> >           216.239.34.21
> >

> Are any of those IPv4 addresses able to be connected to and fetched from by processes on the Squid machine?

> The squidclient tool can be used to probe individual server/IP for issues fetching requests.


Finally Amos you are right! The IPv4 addresses are blocked by the firewall. It is difficult to understand that, if these connections are not logged. I'll use squidclient and mgr:ipcache for future debugging.
Thank you so much!

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