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ignatz : regex   6

Details of the Cloudflare outage on July 2, 2019
Great writeup from jgc. Worth noting some important lessons:

* config changes should be rolled out carefully and gradually, just like code;

* particularly regexps, which are effectively code anyway;

* emergency-use rollback systems need to work, of course!;

* having emergency-only systems is a risk, too, since infrequently-used code paths are likely to atrophy and break without anyone noticing (as nsheridan said);

* /.*/ in a regexp is pretty much always bad news, and would have been worth a linter to catch before commit.
cloudflare  outages  regex  postmortems  regexps  deployment  rollback  via:jgc  via:jm 
4 weeks ago by ignatz
Regexr
RegExr is an online tool to learn, build, & test Regular Expressions
regex  regularexpressions  webtools  programming  sysadmin 
april 2014 by ignatz
Validate Phone Numbers: A Detailed Guide
validating regex for NANP and EPP telephone numbers
regex  phone  regularexpressions  nanp  telephone  epp 
october 2011 by ignatz
RegExpViewer
Firefox extension to see regex regults
firefox  browser  web  extensions  regular_expressions  regex  regexp 
august 2005 by ignatz

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