Markaad maqasho ereyga 'deked kombuyuutar', maxaad u malaynaysaa? dekedaha USB^(USB) ? dekedaha TCP/IPWaxay yeelan kartaa jahawareer. Waxaa jira laba qaybood oo dekedo ah - mid jireed iyo mid muuqaal ah. Dekadda USB waa tusaale deked jireed halka dekedda TCP/IP ay tusaale u tahay deked macmal ah. 

Dekadaha dhabta ahi way ka tiro badan yihiin dekedaha jidheed markaa waxaanu ku bilaabaynaa kuwa jidhka ah. Labada fasalba waxaa laga heli karaa ku dhawaad ​​qalab kasta oo elektaroonik ah. Taleefannada, tablet-yada, kombuyuutarrada, xitaa qaybaha elektarooniga ah ee baabuurta iyo mashiinnada kale waxay yeelan karaan labada fasal. Ujeedadayada, waxaan ku dhihi doonaa kombuyuutar maqaalkan. Kaliya ogow waxay noqon kartaa ku dhawaad ​​qalab kasta.

Waa maxay Deked?^{(What Is A Port?)}

Haddaba, waa maxay dekeddu? Waxaa laga yaabaa inaan u tixraacno dekedahan sida jaakado ama meelo laga baxo, laakiin ereyga ku habbooni waa deked. Shaqada aasaasiga ah ee dekedahani waa inay oggolaadaan in hal qalab lagu xidho mid kale si ay u wada hadlaan. Xagga farsamada, kuwani waa wax-soo-saarka (I/O ama IO) dekedaha. Tirada dekedaha uu qalabku yeelan karo waxa xaddidaya booska jireed ee jira.

Waxaa jira laba kooxood oo dekedo ah - taxane iyo is barbar socda. Kooxaynta ayaa ku salaysan sida dekeddu u ogolaato isgaadhsiinta. 

Deked taxane ah waxay ogolaan kartaa in xoogaa la wareejiyo markiiba. Ka fakar^(Think) tareen. Hal qayb oo tareen ka mid ah ayaa ku jiri karta qayb gaar ah oo jidka ah markiiba. Matoorku waxa uu hor maraa baabuurka xamuulka, baabuurka xamuulku waxa uu hor maraa baabuurka u dambeeya. Haddii mid ka mid ah labadaas ay ku sugan yihiin isla qaybta jidka isku mar, taasi waa burbur ama shil tareen. 

Si la mid ah xogta ku socota dekedda taxane ah. Laba^{(Bit one)} -yar iyo laba isku mar kuma wada jiri karaan fiilada isku mar ama waxaa jira isku dhac oo arrimuhu ma shaqeeyaan.

Deked isbar-bar yaac ah ayaa u oggolaan karta in qaybo badan oo isku mar la wareejiyo. Ka fakar^(Think) waddo weyn oo haad badan leh. Baabuur kasta oo waddada mara waa xoogaa. Qayb kasta oo gaar ah oo ka mid ah wadada weyn, waxaa jiri kara 5, 10, laga yaabee 20 baabuur hal mar, oo dhinac kasta ah. Taasi waxay ka dhigaysaa isgaarsiin aad u dhakhso badan. Haddii aan la caddayn sida, way ahaan doontaa.

Aynu nidhaahno waxaanu farriin u diraynaa laba qof, sida “Hello”, tareen iyo baabuur. Waxaan u direynaa hal qof tareen iyo qof kale oo xamuul ah. Warqad kasta oo salaan ah waxay ku xardhan tahay baabuurka hore iyo xagga hore ee baabuurka tareenka. 

Qofka sugaya tareenka, habka taxanaha ah, wuxuu arki doonaa H ee mishiinka, ka dibna E ee baabuurka xamuulka ah, ka dibna L ee hore ee baabuurka xiga, ka dibna L labaad ee baabuurka xiga iyo O on baabuur final.

Qofka ku sugaya baabuurta xamuulka qaada ee wadada 5-ta haad ah waxa uu arki doona dhamaan baabuurta xamuulka qaada oo hal mar wada imanaya, oo dhinac-ba dhinac ah, oo si wacan u qoraya HELLO^(HELLO) .

Noocyada Dekedaha Jirka^{(Types of Physical Ports)}

DE-9 ama RS-232 Dekadda - Isticmaalka Guud^{(DE-9 or RS-232 Port – General Use)}

Waxaa laga yaabaa inaad kuwan ku dhex aragto kombuyuutarrada qaarkood laakiin way sii yaraanayaan oo aad bay u sii yaraanayaan meel ka baxsan adduunka warshadaha. Waxa loo isticmaali jiray mouse, kiiboodhka iyo qalab kale oo badan.

PS/2 – General Use

Inta badan lagu arkay^(Seen) kombiyuutarada da'da weyn, Dekeddu waxay ahayd Personal System/2 ( PS/2 ) inta badan waxaa loo isticmaali jiray kiiboodhka iyo jiirarka. Midab baa lagu calaamadeeyay – guduudka kiiboodhka iyo cagaarka jiirka. 

PS/2 waxa laga yaabaa in wali lagu arko kombuyuutarrada xarumaha ammaankoodu sarreeyo. Lahaanshaha kaliya PS/2 jiirarka iyo kiiboodhka waxay meesha ka saaraysaa baahida dekedaha USB . Meesha ay jirto dekedda USB , waxaa jirta fursad ah in xogta la xado ama malware lagu duro.

Macluumaadka Guud ee Dekedda USB^{(USB Port General Information)}

Waxaa jira 2 tilmaamood oo waaweyn oo caadi ah oo loogu talagalay dekedaha Serial Bus ee Universal^{(Universal Serial Bus)} ( USB ) oo maanta la arki karo, USB 2 iyo USB 3 . Tilmaamahani waxay tixraacayaan heerarka wareejinta xogta, ma aha qaab muuqaalkooda. Waxa jira dhawr arrimood oo kala duwan kuwaas oo si dheeraad ah loo dabooli doono, qaybtan hoosteeda. 

USB 2.0 waxa uu leeyahay xadiga xogta ugu badan ee wareejinta oo ah 480 Mbps kaliya^(Mbps) . Waxaa jira noocyo kala duwan oo USB 3 ah , laakiin dhammaantood waxay la mid yihiin muuqaal ahaan marka laga reebo calaamadaha qaar ee tilmaamaya nooca. USB 3.0   waa ilaa 5 Gbps iyo USB 3.1 waa ilaa 10 Gbps , USB 3.2 waa ilaa 20 Gbps . Haa, waxaa sidoo kale soo socda USB 4. Aaladda USB 3^{(A USB 3)} ayaa ka shaqayn doonta dekedihii hore ee USB 2 , laakiin waxa kaliya oo ku wareejin doona xogta heerka USB 2 .

Muuqaal ahaan, USB 2 Nooca A^{(Type A)} iyo Nooca B^{(Type B)} iyo dhiggooda USB 3 si fudud ayaa loo kala saari karaa midabka xannibaadda gudaha isku xirka. USB 3.0 oo aad u dheereeya waxa uu leeyahay baloog buluug ah halkaas oo USB 2.0 gaabinaya uu leeyahay block madow. Noocyada kale ee isku xirka USB ma laha xannibaad noocaas ah. Waxaan qaybahooda u geli doonaa qiimahooda kala iibsiga.

Haddii aad rabto macluumaad dheeraad ah oo ku saabsan noocyada kala duwan ee fiilooyinka USB^{(different types of USB cables)} , waxaan u helnay maqaal taasna sidoo kale.

Nooca USB A - Isticmaalka Guud^{(USB Type A – General Use)}

Dhab ahaantii waxaad taqaanaa dekedda USB Type A. Waa deked awood u leh in ay xogta gudbiso oo qaadi karto koronto. Waxay damisaa koronto ku dhawaad ​​5 volts. Amperage wuxuu u dhexeeyaa 100 mA ilaa 500 mA ama 0.5 Amps. 

Tilmaamaha Nooca A^{(Type A)} wuxuu tilmaamayaa qaabka dekedda. Waa leydi-geeska ugu caansan halkaasoo kala badh ka mid ah uu leeyahay xannibaad leh xiriiriyeyaal halka qeybta kalena ay u furan tahay inay hesho isku xirka u dhigma. Waxa kale oo aanu helnay maqaal ku saabsan hagaajinta dekedaha USB^{(fixing USB ports)} .

USB Nooca B - Isticmaalka Guud^{(USB Type B – General Use)}

Inta badan lagu arko madbacadaha miiska, dekedda USB Nooca B^{(USB Type B)} waxay leedahay dalool labajibbaaran. Waxay ku yimaadaan heerarka USB 2 iyo USB 3 . USB 2 mid ka mid ah wuxuu u eg yahay astaanta dhamaadka barn, halka USB 3 uu u eg yahay meel dhagax ah.

USB Nooca C - Isticmaalka Guud^{(USB Type C – General Use)}

Qaabka cusub ee USB-ga^(USB) wuxuu xalliyaa xanaaqa ah in fiilada lagu xiro sida saxda ah. Si kastaba ha ahaatee way shaqayn doontaa. Waa iskuxiraha dib loo rogi karo. Waxay sidoo kale ku shaqeysaa koronto ku dhawaad ​​​​5 volts, laakiin amperage ka sarreeya kan USB Nooca A^{(USB Type A)} . Waxay noqon kartaa ilaa 5 Amps . Tani waxay ka dhigaysaa ku dallaca degdega^{(fast charging)} mid ka mid ah sifooyinkeeda.

RJ-11 - Isgaarsiinta^{(RJ-11 – Communications)}

Uma badna inaan ka helno RJ-11 aalad ilaa aan loo isticmaalin isgaarsiinta taleefanka ama fakiska. Haa, waa jaakadda telefoonka Waxay si aan toos ahayn u gudbin kartaa signalka korantada, laakiin qaar ka mid ah khadadka taleefoonada waxay wataan qulqul ku siin kara shoog adag haddii aadan taxaddarin. In kasta oo ay duug ahaayeen, ixtiraam iyaga.

RJ-45 - Isgaarsiinta^{(RJ-45 – Communications)}

Waxay u badan tahay in loo yaqaan 'jack network', dekedda RJ-45 waa deked 8-pin ah oo loogu talagalay isku xirka aaladaha shabakadda iyadoo la adeegsanayo fiilada Ethernet . Waxay u egtahay jaakadda taleefanka, laakiin xoogaa ka sii ballaaran.

3.5 mm TRS Connector – Maqal^{(3.5 mm TRS Connector – Audio)}

Kuwan waxaa inta badan loo isticmaalaa aaladaha maqalka. Midka cagaarka ah waa isku xirka sameecaadaha ama sameecaadaha. Pink waxa loo isticmaalaa makarafoonada. Buluug^(Blue) waxa loo isticmaalaa xidhiidhka tooska ah ee qalabka maqalka ah. Waxa kale oo loo yaqaan line-in. Waxaa jira noocyo kale laakiin kuma badna qalabka guriga.

VGA/SVGA Port – Video

Dekadda Garaafyada Fiidiyowga^{(Video Graphics Array)} ah ( VGA ) ama Super Video Graphics Array ( SVGA ) waxaa loo adeegsadaa isku xirka kormeerayaasha ama borojeeriyeyaasha kombiyuutarka. VGA waxay bixin kartaa ilaa 640 × 480 xallinta SVGA waxay dhaafi kartaa 800 × 600. 

Labada noocba waa isku mid. Waxay u eg yihiin DE-9 laakiin waxay leeyihiin 3 saf oo 5 godad ah, halkaasoo DE-9 uu leeyahay saf 5 ah iyo saf 4 ah oo ka hooseeya.

DisplayPort - Muuqaal iyo Maqal^{(DisplayPort – Video and Audio)}

Haddii kombuyuutarku leeyahay boos u eg leydi gees leh oo laga xiiray, taasi waa DisplayPort . Waa xiriiriye 20 pin ah oo loogu talagalay in lagu dhejiyo aaladaha fiidiyowga. Waxa kale oo ay awood u leedahay in ay ku dirto codka fiilada, markaa haddii qalabka aad ku xiran tahay uu leeyahay cod-bixiyeyaal waa inuu sidoo kale ka soo qaadaa codka kombiyuutarkaaga.

HDMI - Muuqaal iyo Maqal^{(HDMI – Video and Audio)}

Dekeddu waa mid aad caan u ah Interface Media Interface^{(High Definition Media Interface)} ( HDMI ) Sidoo kale waa deked muuqaal ah waxayna awood u leedahay inay sido signalka maqalka sidoo kale. Kuwaas waxaa laga helaa kombuyuutarrada intooda badan iyo telefishinno badan.

Kuwani waa dekedaha kala duwan ee aad u badan tahay inaad la kulanto. Haddii dekedda aad eegayso aan halkan laga helin, waxaa jira ilo badan oo aqoonsiga deked ah oo ku yaal internetka^(Internet) .

Dekadaha Virtual^{(Virtual Ports)}

Waxa jira 65,535 dekedood (virtual ports) dhamaantoodna waxa ay xidhiidh la leeyihiin isgaadhsiinta shabakada Mid kastaa wuxuu yeelan karaa adeegsi kala duwan, iyadoo ku xiran nooca xogta loo marayo. Dekadahan waxa loo isticmaalaa Hab-maamuuska Xakamaynta Wareejinta^{(Transfer Control Protocol)} ( TCP ) ama borotokoolka xogta isticmaalaha^{(User Datagram Protocol)} ( UDP ) ama labadaba.

TCP inta badan waxaa lagu dhex tuuraa Internet Protocol (IP). Waxaa laga yaabaa inaad u aragtay sida TCP/IP . TCP waxaa loo isticmaalaa in lagu furo xiriirka ka dhexeeya laba qalab si xogta loo wareejiyo. Tani waxay ku samaynaysaa iyada oo mid ka mid ah qalabku gaadho kan kale ka dibna heshiis dhexmara iyaga ayaa la sameeyaa si loo wareejiyo xogta. Tan waxa loo yaqaan xidhiidhka gacan-qaadka. Taasi waxay qaadan kartaa waqti yar.

UDP ma samayso xidhiidh gacan qaad Kaliya waxay bilaabataa gudbinta. Way dhakhso badan tahay, laakiin sababtoo ah ma jiro wax heshiis ah oo ku saabsan sida wax loo sameeyo, khaladaadku wuu dhici karaa. 

Aragti ahaan, nooc kasta oo xiriir shabakadeed ayaa ka dhici kara deked kasta. Taasi waxay runtii jahawareer ku yeelan doontaa kumanaan dekedood oo diyaar ah. Markaa, waxaan isku daynaa inaan raacno halbeeg si aan nolosha u fududeyno. Hay'adda Internet Assigned Numbers Authority ( IANA ) waxay leedahay diiwaanka dekedaha iyo waxa loo isticmaalo^{(registry of ports and what they are used for)} . 

Marka xirmada isgaarsiintu ay soo gasho kombuyuutarka, waxa ay sidataa macluumaadka ku saabsan dekedda uu rabo in uu ku xidho. Sidan ayaa kombuyuutarku u sheegi karaa waxa lagu sameeyo xidhmooyinkaas. Waa sababta aad u arki karto boggaga shabakadda, u wareejin karto faylasha, oo aad u daabacan karto dhammaan fiilooyinka shabakadda.

Waxaa laga yaabaa inaad aragtay nambarada dekedaha ee lagu isticmaalo cinwaannada IP-ga. Waxay noqon doontaa nambarka ka dambeeya unug-yaraha IP sida 192.168.0.1:8080.

Hoos waxaa ku qoran liiska dekedaha ay u badan tahay inaad la kulanto. Waxaan ku tuurnay kii ugu dambeeyay dhammaan cayaartoydii hore ee dugsiga ee^{(old school gamers)} halkaas joogtay.

Port	Description
20	File Transfer Protocol (FTP) data transfer happens on this port
21	File Transfer Protocol (FTP) control messages sent on this one
22	Secure Shell (SSH)
23	Telnet
25	Simple Mail Transfer Protocol (SMTP) for e-mail
53	Domain Name System (DNS)
69	Trivial File Transfer Protocol (TFTP) simplified version of FTP
80	Hypertext Transfer Protocol (HTTP)
8080	Hypertext Transfer Protocol (HTTP) Alternative
123	Network Time Protocol (NTP) for time synchronizing computers
143	Internet Message Access Protocol (IMAP) for e-mail
161	Simple Network Management Protocol (SNMP)
194	Internet Relay Chat (IRC)
443	Hypertext Transfer Protocol over TLS/SSL (HTTPS) Secure connections
465	Authenticated SMTP over TLS/SSL (SMTPS)
587	E-mail Message Submission (SMTP)
515	Line Printer Daemon (LPD) connects printers to a computer
666	Doom, the first-person shooter (FPS) game

Dekadaha, Dekedaha, Dekadaha…^{(Ports, Ports, Ports…)}

Hadda waxaad taqaanaa dekedaha ugu badan ee la arko iyo kuwa casriga ah iyo sidoo kale waxa ay shaqadoodu tahay. Ku calaamadee^(Bookmark) tan si aad u hesho tixraac ama daabac. 

Ma la kulantay dekedo yaab leh? Miyaad qabtaa su'aalo ku saabsan dekedaha kale ama ma u baahan tahay faahfaahin dheeraad ah? Noogu sheeg faallooyinka. Waxaan halkaan u joognaa inaan caawinno.

HDG Explains : What Is a Computer Port & What Are They Used For?

When you hеar the term ‘computer port’, what do you think of? USB ports? TCP/IP ports? It can get cоnfusing. There are two classeѕ of ports – physical and virtυal. A USB рort is an еxample of a phуsical port while a TCP/IP port is an example of a virtual port. 

Virtual ports outnumber physical ports so we’ll start with the physical ones. Both classes can be found on almost any electronic device. Phones, tablets, PCs, even electronic parts in cars and other machines can have both classes. For our purposes, we’ll say a computer in this article. Just know it could be almost any device.

What Is A Port?

So, what is a port? We may refer to these ports as jacks or outlets, but the proper term is port. The basic function of these ports is to allow one piece of hardware to be plugged into another so they can talk to each other. In technical terms, these are input/output (I/O or IO) ports. The number of ports a device can have is limited by the physical space available.

There are two groups of ports – serial and parallel. The grouping is based on how the port allows communications. 

A serial port can only allow for one bit to be transferred at a time. Think of a train. Only one part of the train can be on a specific section of track at a time. The engine goes before the cargo car, the cargo railcar goes before the last car. If any two of those are on the same section of track at the same time, that’s a train wreck or collision. 

The same goes for data flowing through a serial port. Bit one and bit two cannot be on the same section of cable at the same time or there’s a collision and things don’t work.

A parallel port can allow for many bits to be transferred at the same time. Think of a multi-lane highway. Each vehicle on the highway is a bit. On any specific section of the highway, there could be 5, 10, maybe 20 cars at once, beside each other. That makes for much faster communication. If it isn’t clear how, it will be.

Let’s say we’re sending a message to two people, like “Hello”, by train and by truck. We’re sending it to one person by train and another person by truck. Each letter of hello is painted on the front of a truck and on the front of a rail car. 

The person waiting for the train, the serial method, will see the H on the engine, then the E on the next cargo car, then the first L on the next car, then the second L on the next car and the O on the final car.

The person waiting for the trucks on the 5-lane highway will see all the trucks arrive at once, side-by-side, spelling out HELLO nicely.

Types of Physical Ports

DE-9 or RS-232 Port – General Use

You may see these on some computers still but they’re becoming less and less common outside of the industrial world. They used to be used with a mouse, keyboard, and a host of other devices.

PS/2 – General Use

Seen mostly on older computers, the Personal System/2 (PS/2) port was most commonly used for keyboards and mice. They’re color-coded – purple for the keyboard and green for the mouse. 

PS/2 ports may still be seen on computers in high security facilities. Having only PS/2 mice and keyboards eliminates the need for USB ports. Where there’s a USB port, there’s a chance for data to be stolen or malware to be injected.

USB Port General Information

There are 2 common major specifications for Universal Serial Bus (USB) ports that can be seen today, the USB 2 and USB 3. These specifications refer to the data transfer rates, not their physical form factor. There are several different form factors which will be covered further, below this section. 

The USB 2.0 has a maximum data transfer rate of only 480 Mbps. There are different versions of USB 3, but they’re all visually very similar other than some markings that indicate the version. USB 3.0  is up to 5 Gbps and USB 3.1 is up to 10 Gbps, and USB 3.2 is up to 20 Gbps. Yes, there is a USB 4 coming too. A USB 3 device will work through the older USB 2 ports, but will only transfer data at the USB 2 rate.

Visually, the USB 2 Type A and Type B and their USB 3 counterparts can easily be distinguished by the color of the block inside the connector. The faster USB 3.0 has a blue block where the slower USB 2.0 has a black block. The other types of USB connectors don’t have that kind of block. We’ll go into their transfer rates in their own sections.

If you’d like more information about the different types of USB cables, we’ve got an article for that too.

USB Type A – General Use

You definitely know of the USB Type A port.  It’s a port capable of transferring data and carrying power. It puts out electricity at about 5 volts. The amperage can range from 100 mA to 500 mA or 0.5 Amps. 

The Type A descriptor refers to the form factor of the port. It’s the most common rectangular one where half of it has a block with connectors and the other half is open to receive the matching connection. We’ve also got an article on fixing USB ports.

USB Type B – General Use

Most often seen with desktop printers, the USB Type B port has a square hole. They come in the USB 2 and USB 3 standards. The USB 2 one looks a bit like the end-profile of a barn, while the USB 3 one looks a bit like a stone fireplace.

USB Type C – General Use

The newer form factor of USB solves the annoyance of having to plug the cable in the right way. Either way will work. It’s a reversible connector. It also conducts power at about 5 volts, but at a higher amperage than the USB Type A. It can be up to 5 Amps. This makes fast charging one of its features.

RJ-11 – Communications

We’re not likely to find the RJ-11 on a device unless it is used for phone or fax communications. Yes, it’s a phone jack. It can passively transmit an electric signal, but some phone lines carry a current that can give you a solid shock if you’re not careful. Even though they’re old fashioned, respect them.

RJ-45 – Communications

More likely called the network jack, the RJ-45 port is an 8-pin port for connecting devices to a network using an Ethernet cable. It looks like a phone jack, but just a bit wider.

3.5 mm TRS Connector – Audio

These are most commonly used for audio devices. A green one is for connecting speakers or headphones. Pink is used for microphones. Blue is used for a direct connection from an audio device. It’s also known as a line-in. There are other kinds but they’re not common on home devices.

VGA/SVGA Port – Video

The Video Graphics Array (VGA) or Super Video Graphics Array (SVGA) port is used for connecting monitors or projectors to a computer. VGA can provide up to 640×480 resolution and SVGA can go over 800×600. 

Both types look identical. They look like the DE-9 but have 3 rows of 5 holes, where the DE-9 has a row of 5 and a row of 4 below it.

DisplayPort – Video and Audio

If your computer has a slot that looks like a rectangle with one corner shaved off, that’s a DisplayPort. It’s a 20 pin connector for attaching video devices. It’s also capable of sending audio over the cable, so if the device you’re connecting has speakers it should pick up the audio from your computer too.

HDMI – Video and Audio

The High Definition Media Interface (HDMI) port is very popular. It’s also a video port and it is capable of carrying the audio signal as well. These are found on most PCs and a lot of televisions.

Those are the different physical ports that you’re most likely to come across. If the port you’re looking at isn’t found here, there are lots of port identification resources on the Internet.

Virtual Ports

There are 65,535 virtual ports and all of them are related to network communications. Each one could have a different use, depending on the type of data going through them. These ports are used for Transfer Control Protocol (TCP) or User Datagram Protocol (UDP) or both.

TCP is often lumped in with Internet Protocol (IP). You may have seen it as TCP/IP. TCP is used to open a connection between two devices so that data can be transferred. It does this by having one device reach out to the other and then an agreement between them is made to transfer data. This is known as a handshake connection. That can take a little time.

UDP doesn’t make a handshake connection. It just starts transmitting. It’s quicker, but because there isn’t any agreement in place about how to do things, errors can take place. 

In theory, any kind of network communication could happen through any port. That would get really confusing with thousands of ports being available. So, we try to follow a standard to make life easier. The Internet Assigned Numbers Authority (IANA) does have a registry of ports and what they are used for. 

When a communication packet comes into a computer, it carries information about what port it wants to connect to. This is how the computer can tell what to do with those packets. It’s why you can view web pages, transfer files, and print all over the same network cable.

You may have seen port numbers used in IP addresses. It would be the number after the semi-colon in an IP like 192.168.0.1:8080.

Following is a list of the ports you are most likely to come across. We tossed in the last one for all the old school gamers out there.

Port	Description
20	File Transfer Protocol (FTP) data transfer happens on this port
21	File Transfer Protocol (FTP) control messages sent on this one
22	Secure Shell (SSH)
23	Telnet
25	Simple Mail Transfer Protocol (SMTP) for e-mail
53	Domain Name System (DNS)
69	Trivial File Transfer Protocol (TFTP) simplified version of FTP
80	Hypertext Transfer Protocol (HTTP)
8080	Hypertext Transfer Protocol (HTTP) Alternative
123	Network Time Protocol (NTP) for time synchronizing computers
143	Internet Message Access Protocol (IMAP) for e-mail
161	Simple Network Management Protocol (SNMP)
194	Internet Relay Chat (IRC)
443	Hypertext Transfer Protocol over TLS/SSL (HTTPS) Secure connections
465	Authenticated SMTP over TLS/SSL (SMTPS)
587	E-mail Message Submission (SMTP)
515	Line Printer Daemon (LPD) connects printers to a computer
666	Doom, the first-person shooter (FPS) game

Ports, Ports, Ports…

Now you know about the most often seen physical and virtual ports as well as what their jobs are. Bookmark this for a handy reference or print it out. 

Have you come across any weird ports? Do you have questions about other ports or need more details? Let us know in the comments. We’re here to help.

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