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import javax.crypto.Mac; | |
import javax.crypto.spec.SecretKeySpec; | |
import java.io.UnsupportedEncodingException; | |
import java.security.InvalidKeyException; | |
import java.security.NoSuchAlgorithmException; | |
public class HMAC { | |
public static void main(String[] args) throws Exception { | |
System.out.println(hmacDigest("The quick brown fox jumps over the lazy dog", "key", "HmacSHA1")); | |
} |
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HTTP status code symbols for Rails | |
Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings. | |
Status Code Symbol | |
1xx Informational | |
100 :continue | |
101 :switching_protocols | |
102 :processing |
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the\
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)