Tag: dns
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Slow Internet with Leopard
How to fix Slow Web Browsing and Slow Internet in Leopard (10.5.x) Symptoms Web pages load slowly in Safari or Firefox in Leopard. Web sites won’t load, only load partially, stop loading after a few hours. Slow DNS (domain name) lookup in Leopard. First load of web site is slow with “looking up domain” in…
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1.0.0.127.dnsbugtest. 1.0.0.127.in-addr-arpa
Update: Stuart kindly dropped me a note regarding Apple’s fix for this.ย See the end of the article for his response. This evening while randomly working on articles for Installing Cats, I was watching DNS requests from tcpdump running in a terminal window and noticed something quite odd: a DNS request every three seconds for…
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Debugging Mac OS X DNS – tcpdump
Need to debug a slow Internet connection in OS X? Or simply have a desire to watch incoming and outgoing DNS (domain name service) queries in Leopard? Then tcpdump is your friend. Open a terminal window and use the following command: sudo tcpdump -i en1 -s 128 port 53 -i Sets which interface to listen…