05-25-2017
Quote:
Originally Posted by
Corona688
pentium 4 is a bit old, unless it has 1g ram or more.
It's still more than 1-2 orders of magnitude faster than the original Pi. And probably 2-5x faster than a Pi2.
That said you could get a $2 USB Ethernet adapter on ebay ... and plug it into the pi and experiment with that. The Pi will probably show your internet down since it's peripherals all hang off it's overloaded USB bus.
The P4 ought to handle it with ease... as far as that goes lots of people have used much slower machines for routers/firewalls. Rather than using wireshark which is a rather heavy handed but comprehensive solution, you just do as suggested here with dnsmasq
How to log all my DNS queries? - Unix & Linux Stack Exchange
And filter the log for dnsmasq output.... just about as good as wireshark and probably more performant than running without the system as now your dns queries are cached by a local machine. The TCPDUMP answer there is also good.
If you get it working on the P4 getting a mini PC is probably a decent idea... as the power savings alone will pay for itself. A P4 computer costs between $100-300 a year to leave running vs the mini PC costing about 10 bucks a year.
Last edited by cb88; 05-25-2017 at 01:49 AM..
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LEARN ABOUT CENTOS
ldns-test-edns
ldns-test-edns(1) General Commands Manual ldns-test-edns(1)
NAME
ldns-test-edns - test if dns cache supports EDNS and DNSSEC.
SYNOPSIS
ldns-test-edns [ -i ] { ip }
DESCRIPTION
ldns-test-edns tests a DNS cache and checks if it supports EDNS0 and DNSSEC types so that it can be used as a dnssec-enabled DNS cache. It
sends two queries to the cache, one for the root key and one for a DS record. These must succeed, the answer must have EDNS, that type and
signatures.
If the IP address is good for DNSSEC, it is printed with 'OK'. Otherwise short description is given of the failure. If OK is given, the
cache should be good to use as a cache for a local configured DNSSEC validator.
The tool assumes the root is signed and Sweden is signed. Also, the queries are sent with the CD flag, the tool does not check that the
results are validated, but that they can be validated.
OPTIONS
-i option enables a mode where the working IP addresses are printed after another, with no other explanations, and if none work or no IP
addresses are on the input, 'off' is printed.
ldns-test-edns takes one or more IP addresses, it checks them in turn. IPv4 and IPv6 addresses can be given. The exit value is for the
last checked IP address: 0 is OK, 1 is failure, 2 is some sort of network failure.
AUTHOR
Written by the ldns team as an example for ldns usage.
REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>.
COPYRIGHT
Copyright (C) 2010 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
POSE.
14 Dec 2010 ldns-test-edns(1)