SmashingConf 2014 – the slides

Written on 17 September 2014, 10:32pm

Tagged with: , ,

Day 1:

1. Marcin Wichary (@mwichary)
post
2. Yesenia Perez-Cruz (@yeseniaa)
No slides?
3. Phil Hawksworth (@philhawksworth)
slides
4. Josh Emerson (@joshe)
slides
5. Mathias Bynens (@mathias)
post, related presentation
6. Patty Toland (@pattytoland)
slides
7. Paul Bakaus (@pbakaus)
post
8. Kevin M. Hoffman (@kevinmhoffman)
No slides?
9. Christopher Murphy (@fehler)
No slides?
~~~~

Day 2:

1. Dave Shea (@mezzoblue)
slides
2. Phil Coffman (@philcoffman)
slides
3. Sara Wachter Boettcher (@sara_ann_marie)
slides
4. Gerry Leonidas (@gerryleonidas)
slides
5. Peter Smart (@petewsmart)
slides
6. Matt Andrews (@andrewsmatt)
No slides?
7. Josh Payton (@jpay)
No slides?
8. Jason Grigsby (@grigs)
slides

See also the full coverage on Lanyrd.com

DNS and authoritative answers

Written on 13 November 2013, 05:37pm

Tagged with: , , ,

A simple trick about nslookup that I learned while reading the Smashing Magazine’s free preview of their Book #4

To start, the full syntax of nslookup is:
nslookup [-option] [hostname] [server]

When you run nslookup [hostname], it’s your local DNS server that answers the query. This answer is non-authoritative.
With an additional step, you can get the local name servers of the hostname: nslookup -type=ns [hostname]
Using one of these local DNS servers, you can query again: nslookup [hostname] [local_name_server]. This answer is authoritative.


$ nslookup www.smashingmagazine.com
Server: 194.168.4.100
Address: 194.168.4.100#53
Non-authoritative answer:
Name: www.smashingmagazine.com
Address: 80.72.139.101

$ nslookup -type=ns www.smashingmagazine.com
Server: 194.168.4.100
Address: 194.168.4.100#53
Authoritative answers can be found from:
smashingmagazine.com
origin = a.regfish-ns.net
mail addr = postmaster.regfish.com...

$ nslookup www.smashingmagazine.com a.regfish-ns.net
Server: a.regfish-ns.net
Address: 79.140.49.11#53
Name: www.smashingmagazine.com
Address: 80.72.139.101

To clean the DNS cache, use ipconfig /flushdns.

Paul Tero – How To Fix The Web: Obscure Back-End Techniques And Terminal Secrets
From the same author – Introduction to DNS: Explaining The Dreaded DNS Delay
smashing-book-4-cover

Update 12/feb/2017: