dnat การใช้

• If no applicable DNAT rule is available, the router drops the packet.
• DNAT is commonly used to publish a service located in a private network on a publicly accessible IP address.
• It determines the destination for that packet, based on DNAT ( port forwarding ) rules for the destination.
• PriC, DnaB, DnaC, and DnaT then act on the PriAPriB-DNA complex to yield the primosome.
• If any DNAT rules were present, address translation is still in effect; the router still rewrites the source IP address in the packet.
• When used on gateway devices, a port forward may be implemented with a single rule to translate the destination address and port . ( On Linux kernels, this is DNAT rule ).
• If the data were sent to port 80 and a DNAT rule exists for port 80 directed to 192.168.1 . 2, then the host at that address receives the packet.
• This use of DNAT is also called port forwarding, or DMZ when used on an entire server, which becomes exposed to the WAN, becoming analogous to an undefended military demilitarised zone ( DMZ ).
• Initially the complex formed by PriA, PriB, and PriC binds to DNA . Then the DnaB-DnaC helicase complex attaches along with DnaT . This structure is referred to as the pre-primosome.
• The primosome consists of seven proteins : DnaG primase, DnaB helicase, DnaC helicase assistant, DnaT, PriA, Pri B, and PriC . At each replication fork, the primosome is utilized once on the leading strand of DNA and repeatedly, initiating each Okazaki fragment, on the lagging DNA strand.
• Assembly of the Escherichia coli primosome requires six proteins, PriA, PriB, PriC, DnaB, DnaC, and DnaT, acting at a primosome assembly site ( pas ) on an SSBcoated single-stranded ( 8s ) DNA . Assembly is initiated by interactions of PriA and PriB with ssDNA and the pas.