stefanschmidt

# Using mkpasswd and slappasswd we will generate salted SHA-512 hashes
# password: secret

# method 1: using mkpasswd
# requires whois package on Ubuntu
mkpasswd --method=sha-512 --salt=foobar42
$6$foobar42$weYmU8biHjFLegPCuvGBSDaG0QMNucFv4Wq6.TGVK53/U0dp6bTrLYCLAdjecyX5mS1IA8vezYNjzTduU988B0

# method 2: using slappasswd
# requires slapd package on Ubuntu

stefanschmidt

# reload configuration
doveadm reload

# restart
service dovecot restart

# test authentication
doveadm auth test user@domain.com

# test login with passdb and userdb lookup

stefanschmidt

# requires net-dns gem
# query defaults to A record

require 'net/dns'
res = Net::DNS::Resolver.new
packet = res.query("google.com")
packet.answer.first.value

stefanschmidt

# requires net-dns gem

require 'net/dns'
res = Net::DNS::Resolver.new
mx = res.mx("google.com")
mx.first.exchange

stefanschmidt

# Using an LDAP test server we will authenticate the user newton
# http://www.forumsys.com/tutorials/integration-how-to/ldap/online-ldap-test-server/
# requires net-ldap gem

require 'net/ldap'
ldap = Net::LDAP.new
ldap.host = 'ldap.forumsys.com'
ldap.auth "uid=newton,dc=example,dc=com", "password"
if ldap.bind
  puts 'authentication succeeded'

stefanschmidt

# Using an LDAP test server we will authenticate the user newton
# http://www.forumsys.com/tutorials/integration-how-to/ldap/online-ldap-test-server/

# method 1: using ldapwhoami
# should return "Result: Success (0)" if authentication was successful
ldapwhoami -vvv -h ldap.forumsys.com -D "uid=newton,dc=example,dc=com" -x -w password

# method 2: using ldapsearch
# should return "result: 0 Success" if authentication was successful
ldapsearch -h ldap.forumsys.com -x -D uid=newton,dc=example,dc=com -w password -b "dc=example,dc=com" "(uid=newton)"

stefanschmidt

# depends on teem (available via Homebrew)
unu head volume.nrrd | grep sizes

stefanschmidt

# fix owner of files and folders recursively
sudo chown -vR $(whoami) /usr/local /opt/homebrew-cask /Library/Caches/Homebrew

# fix read/write permission of files and folders recursively
chmod -vR ug+rw /usr/local /opt/homebrew-cask /Library/Caches/Homebrew

# fix execute permission of folders recursively
find /usr/local /opt/homebrew-cask /Library/Caches/Homebrew -type d -exec chmod -v ug+x {} +

stefanschmidt

require 'formula'

class PkgExtract < CurlDownloadStrategy
  def stage
    safe_system '/usr/bin/xar', '-xf', @tarball_path
    chdir
    safe_system 'mv *.pkg/Payload Payload.gz'
    safe_system 'ls | grep -v Payload | xargs rm -r'
  end
end

stefanschmidt

# user preferences for the builtin text bundle
PREF_FILE="$HOME/Library/Application Support/Avian/Bundles/Text.tmbundle/Preferences/Miscellaneous.tmPreferences"

# single and double guillemets in both directions
SINGLE_LEFT="<string>‹<\/string>"; SINGLE_RIGHT="<string>›<\/string>"
DOUBLE_LEFT="<string>«<\/string>"; DOUBLE_RIGHT="<string>»<\/string>"

# perl syntax used below
# -i: inplace editing
# -p: iterate over files