Adrian Hosey alh13
alh13
/ openssl-cheatsheet
Created
February 6, 2013 17:28
openssl commands for certificate manipulation
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| Generate a key: | |
| openssl genrsa 2048 > <hostname>.key | |
| Generate a CSR: | |
| openssl req -new -key <hostname>.key -out <hostname>.csr | |
| Generate a self-signed cert: | |
| openssl req -new -x509 -nodes -days 365 -sha1 -key <hostname>.key > <hostname>.crt |
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| # https://speakerdeck.com/u/jeg2/p/10-things-you-didnt-know-ruby-could-do | |
| RubyVM::InstructionSequence.compile_option = { :tailcall_optimization => true, | |
| :trace_instruction => false } | |
| eval <<end | |
| def factorial(n, result = 1) | |
| if n == 1 | |
| result | |
| else |
alh13
/ gist:3856276
Created
October 9, 2012 02:44
git-merge branch A into branch B so that B becomes EXACT copy of A
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| git merge --no-commit && git checkout other-branch -- . && git commit | |
| ### https://twitter.com/adymitruk/status/69479850846593024 | |
| # We needed this once after some intense debugging on the staging branch. We knew | |
| # staging was correct and wanted to merge staging -> production and be sure that | |
| # prod branch never "won" any conflicts |
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| python -m smtpd -n -c DebuggingServer localhost:1026 |
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| # Here's an idiom to spawn a subprocess and capture its output, without fear of | |
| # being attacked by shell metachars | |
| # (Perl's backtick operator spawns a shell) | |
| sub safeticks { | |
| my $retval = ''; | |
| my $line; | |
| my $pid; | |
| die "Can't fork: $!" unless defined($pid = open(KID, "-|")); | |
| if ($pid) { # parent |