ABOUT PF PACKET FILTER - ANTIVIRUS
ABOUT PF PACKET FILTER - ANTIVIRUS
Basic Definition
PF (Packet Filter) is the packet filter or firewall configuration based on dynamic (stateful rules) written by Darren OpenBSD. Replaced the filter in Darren Reed IPFilter
OpenBSD due to problems with the license, namely that Reed had to give
permission to the OpenBSD developers to change the code.
Theo de Raadt said IPFilter was removed when "the software that OpenBSD uses and shares should be free for all (both users and companies)
For any
purpose you want to be given, including modification, use, peeing on it
or even join babies in crushing machines or atomic bombs to throw in
Australia ". Due to the discomfort of the OpenBSD team with Reed's
license, it was decided to replace the entire package rather than waste
time trying to negotiate the issue.
The PF has since developed very quickly
And in OpenBSD 3.8 and had great advantage over
other firewall options. Filtering syntax is similar to IPFilter, although modified to make it clearer. The Network Address Translation
(NAT) and quality of service (QoS) were integrated seamlessly into PF,
to allow greater flexibility. Reached integrating QoS queues alternatives (ALTQ) in PF itself.
The PF can be used for mounting flexibility firewall devices
Since it includes features
such as pfsync and redundancy protocol for common addresses (CARP),
authpf (session ID), an ftp proxy and other extras related to PF.
PF has been ported to NetBSD 3.0 per itojun
Is installed in the default
configuration of FreeBSD since version 5.3 and appears in DragonFlyBSD
since version 1.2.
Comentarios
"Checks should be presented for payment:
1. Within fifteen days from its date, if they are paid at the same place of issue;
2. Within a month, if they are payable in the same country of issue, but rather different from this;
3. Within three months, if they are issued in a Latin American country and payable in any other country in Latin America, and
4. Within four months, if they are issued in a Latin American country to be paid outside of Latin America. "
The result of the untimely submission of checks under the terms stated expiration is cambiaria1 action, that is, the inability of the exchange law born as the payment obligation is subject to the condition that the holder of this title for payment and protest in time.
"Even if the check has not been submitted in time, the drawee must pay if the drawer has sufficient funds or make the offer of partial payment upon presentation within six months following the date".
This item is no longer refers to the expiration of the exchange action but refers to the bank's obligation to pay the check if it is submitted within six months of its date. "During this term - which certainly exceeds that of the submission, Article 718 - the holder may carry as many times you want the check to the bank to obtain payment window, or file through your checking account, and if funds it is the duty of the drawee to pay or make an offer of partial payment, until the available balance "3