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• Port Mapping
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• Port Mapping Docker
• Port Maputo

The port mapper (rpc.portmap or just portmap, or rpcbind) is an Open Network Computing Remote Procedure Call (ONC RPC) service that runs on network nodes that provide other ONC RPC services.

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Version 2 of the port mapper protocol maps ONC RPC program number/version number pairs to the network port number for that version of that program. When an ONC RPC server is started, it will tell the port mapper, for each particular program number/version number pair it implements for a particular transport protocol (TCP or UDP), what port number it is using for that particular program number/version number pair on that transport protocol. Clients wishing to make an ONC RPC call to a particular version of a particular ONC RPC service must first contact the port mapper on the server machine to determine the actual TCP or UDP port to use.

Versions 3 and 4 of the protocol, called the rpcbind protocol, map a program number/version number pair, and an indicator that specifies a transport protocol, to a transport-layer endpoint address for that program number/version number pair on that transport protocol.

The port mapper service always uses TCP or UDP port 111; a fixed port is required for it, as a client would not be able to get the port number for the port mapper service from the port mapper itself.

The port mapper must be started before any other RPC servers are started.

The port mapper service first appeared in SunOS 2.0.

Example portmap instance[edit]

This shows the different programs and their versions, and which ports they use. For example, it shows that NFS is running, both version 2 and 3, and can be reached at TCP port 2049 or UDP port 2049, depending on what transport protocol the client wants to use, and that the mount protocol, both version 1 and 2, is running, and can be reached at UDP port 644 or TCP port 645, depending on what transport protocol the client wants to use.

Security concerns[edit]

The port mapper service was discovered to be used in Distributed Denial of Service (DDoS) attacks and Distributed Reflective Denial of Service (DRDoS) attacks in 2015. By using a spoofed port mapper request, an attacker can amplify the effects on a target because a portmap query will return many times more data than in the original request.^[1]

References[edit]

1. ^Level 3 Threat Research Labs (August 17, 2015). 'A New DDoS Reflection Attack: Portmapper; An Early Warning to the Industry'.

External links[edit]

• portmap(8) – Linux Administration and Privileged Commands Manual
• rpcbind(1M) – Solaris 10 System Administration Commands Reference Manual
• RFC 1833 - the specification of the ONC RPC port mapping protocol.

Port Mapping

Port Fourchon is Louisiana’s southernmost port, located on the southern tip of Lafourche Parish, on the Gulf of Mexico. It is a seaport, with significant petroleum industry traffic from offshore Gulf oil platforms and drilling rigs as well as the Louisiana Offshore Oil Port pipeline. Fourchon's primary service markets are domestic deepwater oil and gas exploration, drilling, and production in the Gulf. Port Fourchon currently services over 90% of the Gulf of Mexico's deepwater oil production. There are over 600 oil platforms within a 40-mile radius of Port Fourchon. This area furnishes 16 to 18 percent of the US oil supply.^[1]

Port Fourchon is part of the Houma–Bayou Cane–ThibodauxMetropolitan Statistical Area.

History[edit]

Port Map Dnd

Port Fourchon was developed as a multi-use facility. It has historically been a land base for offshore oil support services as well as a land base for the Louisiana Offshore Oil Port (LOOP). In addition, it has served as a commercial and recreational fishing mecca, foreign cargo shipping terminal, and a unique area for recreation and tourism.

The Board of Commissioners of the Greater Lafourche Port Commission is charged with ensuring the progress and continued development of Port Fourchon and the South Lafourche Leonard Miller, Jr. Airport. Nine members seated at-large comprise the Commission in lettered seats A through I. Every six years, the people of the Tenth Ward of Lafourche Parish elect all nine commissioners.

The Greater Lafourche Port Commission, established by the state of Louisiana in 1960 as a political subdivision of the state of Louisiana, exercises jurisdiction over the Tenth Ward of Lafourche Parish south of the Intracoastal Waterway, including the seaport and the airport. The Port Commission facilitates the economic growth of the communities in which it operates by maximizing the flow of trade and commerce, largely through Port Fourchon. Bristow Helicopters and Petroleum Helicopters International Inc. both operate helicopters out of the heliport at Port Fourchon that ferry people and supplies to the Offshore Oil Drilling and Production Platform Rigs in the Gulf of Mexico, such at the BP Thunderhorse PDQ that lies 150 miles to the South.

Geography[edit]

Port Mapping Docker

Port Fourchon is a short distance off Louisiana Highway 1 (LA 1), the road to Grand Isle, via Louisiana Highway 3090. It is the southernmost point of Louisiana accessible by automobile.

As a critical infrastructure of national significance, LA 1 provides a vital link to Port Fourchon. As of mid-2008, $350 million from state bonds and federal assistance has been budgeted to begin replacing a 17-mile (27-km) stretch of LA 1, the road into Port Fourchon, because that part of the highway is not inside the hurricane levee system that protects inland communities, and the highway is prone to flooding from storm surge, even from tropical cyclones some distance away. The replacement will be an elevated highway that can stand up to a major storm and remain open even if the land around it floods. A seven-mile (11-km) section of the project from Leeville to Port Fourchon, including a higher bridge across Bayou Lafourche, is under construction and scheduled for completion in 2011; this segment will be funded by tolls. The bridge over Bayou Lafourche, funded by tolls, opened July 8, 2009.^[2] Funds have not been secured for the segment between Golden Meadow and Leeville.^[3]

Hurricanes[edit]

On June 7, 2005, FX Networks broadcast the docudramaOil Storm, which first depicted a fictional Category 4 hurricane named 'Julia' hitting Port Fourchon in September 2005. In the fictional account, the port was severely crippled, but in reality Port Fourchon has been up and running mere days after major storm events.

Port Fourchon was damaged by Hurricane Lili in October 2002.^[4] It did not take a direct hit by Hurricane Katrina on August 29, 2005, and was only slightly damaged.^[3]

See also[edit]

References[edit]

Port Maputo

1. ^www.portfourchon.com
2. ^'GeauxPass Kiosk Location Map'(PDF). LA 1 Coalition. Retrieved October 11, 2009.
3. ^ ^ab'Three years after Katrina, Gulf ports at risk'. Reuters. 2008-08-28. Retrieved 2008-08-28.
4. ^Port Fourchon hit by Hurricane Lili

External links[edit]

• 'As Coastal 'Brown Marsh' Hits Louisiana Hard NOAA Satellite Imagery Goes to Work in Field'. Access NOAA. National Oceanic & Atmospheric Administration. December 4, 2001. Retrieved 2007-09-11.