Jacob Dearing dearing
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| nf_conntrack | |
| nf_conntrack_ipv4 | |
| nf_conntrack_ipv6 | |
| nf_defrag_ipv4 | |
| nf_defrag_ipv6 | |
| nf_nat | |
| nf_nat_ipv4 | |
| nf_tables | |
| nf_tables_inet | |
| nf_tables_ipv4 |
dearing
/ nftables.conf
Created
October 13, 2014 01:56
standard netfilter tables script for bootup on Arch : /etc/nftables.conf
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| table inet firewall { | |
| chain incoming { | |
| type filter hook input priority 0; | |
| # bad tcp -> avoid network scanning: | |
| tcp flags & (fin|syn) == (fin|syn) drop | |
| tcp flags & (syn|rst) == (syn|rst) drop | |
| tcp flags & (fin|syn|rst|psh|ack|urg) < (fin) drop # == 0 would be better, not supported yet. | |
| tcp flags & (fin|syn|rst|psh|ack|urg) == (fin|psh|urg) drop |
dearing
/ WXR-attachment-scraper-jpeg.rb
Created
April 27, 2012 02:48
WXR export attachment scraper (hard-coded for type/jpeg); checks existing CDN objects and publishes them if needed
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| #!/usr/bin/ruby | |
| require 'net/http' | |
| require 'cloudfiles' | |
| require 'colorize' | |
| require 'uri' | |
| i = 0 | |
| skipto = ARGV[0].to_i | |
| snooze = ARGV[1].to_f |
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| // trivial HTTP server | |
| package main | |
| import ( | |
| "flag" | |
| "fmt" | |
| "log" | |
| "net/http" | |
| ) |
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| /* | |
| FizzBuzz in GO, as a webserver... | |
| */ | |
| package main | |
| import ( | |
| "flag" | |
| "fmt" | |
| "net/http" | |
| c "strconv" |
dearing
/ websockets-echo-test.cs
Created
February 10, 2012 07:33
RFC6455: simple echo test with websocket after handshake
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| /* http://tools.ietf.org/html/rfc6455#section-5.2 | |
| 0 1 2 3 | |
| 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |
| +-+-+-+-+-------+-+-------------+-------------------------------+ | |
| |F|R|R|R| opcode|M| Payload len | Extended payload length | | |
| |I|S|S|S| (4) |A| (7) | (16/64) | | |
| |N|V|V|V| |S| | (if payload len==126/127) | | |
| | |1|2|3| |K| | | | |
| +-+-+-+-+-------+-+-------------+ - - - - - - - - - - - - - - - + | |
| | Extended payload length continued, if payload len == 127 | |
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