Lookup autonomous systems of all outgoing http/s traffic

ss -t -o state established '( dport = :443 || dport = :80 )'|grep tcp|awk '{ print $5 }'|sed s/:http[s]*//g|sort -u|netcat whois.cymru.com 43|grep -v "AS Name"|sort -t'|' -k3
Sample Output
13335   |    | CLOUDFLARENET - CloudFlare, Inc.,US
13335   | 2400:cb00:2048:1::681b:ae68              | CLOUDFLARENET - CloudFlare, Inc.,US
19679   |   | DROPBOX - Dropbox, Inc.,US
15169   | 2a00:1450:4013:c01::bd                   | GOOGLE - Google Inc.,US
15169   | 2a00:1450:4016:7::17                     | GOOGLE - Google Inc.,US
15169   | 2a00:1450:4016:804::2005                 | GOOGLE - Google Inc.,US
15169   | 2a00:1450:4016:804::200e                 | GOOGLE - Google Inc.,US
15169   | 2a00:1450:4016:805::200e                 | GOOGLE - Google Inc.,US
13414   |     | TWITTER - Twitter Inc.,US

By: koppi
2016-04-07 01:48:44

1 Alternatives + Submit Alt

What Others Think

Great idea, doesn't work for me I use:: ss -t -o state established '( dport = :443 || dport = :80 )' | grep -Po '([0-9a-z:.]*)(?=:http[s])' | sort -u|netcat whois.cymru.com 43|grep -v "AS Name"|sort -t'|' -k3 To get tcp use the -t option (tcp/udp isn't printed on older versions of ss) ss -t -o state established '( dport = :443 || dport = :80 )' Some grep versions supports look behind so you can replace awk|sed with: grep -Po '([0-9a-z:.]*)(?=:http[s])'
miniker84 · 256 weeks and 3 days ago
someone told me that grep didn't work for them so there is the much messier sed version: ss -t -o state established '( dport = :443 || dport = :80 )' | sed -r 's/.*?\s([0-9a-z:.]+):http[s]*.*$/\1/;t;d'| sort -u|netcat whois.cymru.com 43|grep -v "AS Name"|sort -t'|' -k3 sed -r 's/.*?\s([0-9a-z:.]+):http[s]*.*$/\1/;t;d'
miniker84 · 256 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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