1 Reverse the numbers. 2  Multiply the digits in odd positions (1, 3, 5, etc.) by 2 and subtract 9 to all any result higher than 9. 3  Add all the numbers together. 4  The check digit (the last number of the card) is the amount that you would need to add to get a multiple of 10 (Modulo 10).
ACH is a computer-based clearing and settlement facility established to process the exchange of electronic transactions between participating depository institutions. Rules and regulations that govern the ACH network are established by NACHA and the Federal Reserve.In 2013, this network processed nearly 22 billion ACH transactions with a total value of $38.7 trillion. Credit card payments are handled by separate networks.ules and regulations that govern the ACH network are established by NACHA and the Federal Reserve. In 2013, this network processed nearly 22 billion ACH transactions with a total value of $38.7 trillion. Credit card payments are handled by separate networks.
SSH stands for Secure SHell. It is a program designed to allow users to log into another computer over a network, to execute commands on that computer and to move files to and from that computer. It effectively replaces telnet, ftp and the rcp/rsh/remsh programs.