Diidmada la qaybiyey ee adeegga ( DDoS ) werarku wuxuu ku dhici karaa qof kasta, wakhti kasta. Haddii aad leedahay degel internet^{(you have a website)} oo ku shaqeeya server-ka shabakadda, waxaa muhiim ah in la fahmo waxa uu yahay weerarka DDoS , sida loo aqoonsado, iyo waxa la sameeyo si loo joojiyo loogana hortago.

Waa maxay Weerarka DDoS?

Diidmada la qaybiyay ee weerarka adeegga ayaa ah marka hackers uu isticmaalo botnet si uu u soo diro server-kaaga shabakad tiro xad dhaaf ah oo codsiyada HTTP ah muddo gaaban.

Botnet-ku waa shabakad aad u weyn oo kombuyuutar ah oo ku baahsan intarneedka oo dhan kuwaas oo uu ku dhacay fayras kaas oo u beddelaya gudbinta software-ka hackerka. Inta badan kombiyuutarada ku jira botnet waa kombiyuutarada caadiga ah ee uu ku dhacay fayraska, isticmaaluhu xitaa ma ogaanayo.

Inta lagu jiro hawlgalka caadiga ah, server-ka shabakadu wuxuu boggaaga mareegaha u siiya booqdayaasha sida soo socota:

• Qofku wuxuu ku qoraa URL-^(URL) kaaga biraawsarkooda.
• Barowsaruhu wuxuu soo saaraa codsi HTTP ah ^(HTTP)URL -ka mareegta .
• Adeegayaasha DNS^{(DNS servers)} ee ISP-gaagu waxay u beddelaan URL -ka cinwaanka IP-ga saxda ah ee serfarka shabakadda.
• Codsiga HTTP waxaa lagu hagayaa intarneedka oo dhan ilaa server-ka shabakadda.
• Adeegaha shabakadu wuxuu isticmaalaa bogga laga codsaday URL si uu u helo faylka HTML ee saxda ah.^(HTML)
• Adeegaha shabakadu waxa uu kaga jawaabayaa dhammaan waxa ku jira faylka HTML .
• browserka isticmaaluhu wuxuu helayaa faylka HTML wuxuuna tusayaa bogga isticmaalaha.

Inta badan server-yada shabakada waxaa lagu qiyaasaa CPU iyo qalabka shabakada si ay u xakameeyaan celceliska taraafikada la filayo maalintii. Mareegaha qaar, taasi waxay noqon kartaa ilaa boqol kun, ama xitaa hal milyan oo soo booqda hal maalin gudaheed.

Si kastaba ha noqotee, hacker rajaynaya inuu ku weeraro degelkaaga weerarka DDoS wuxuu isticmaali doonaa botnet malaayiin kombiyuutar ah oo adduunka oo dhan ah, si uu ugu soo diro kumanaan codsi HTTP ah ilbiriqsi kasta server-kaaga.

Mar haddii server-kaagu aanu ku cabbirayn mugga taraafigga, seerfarka shabakadu waxa ay kaga jawaabi doontaa soo-booqdayaasha degelkaaga caadiga ah fariinta khaladka ah, Adeegga lama heli karo. ^{(Service Unavailable.)}Tan waxa kale oo loo yaqaan HTTP 503.

Xaalado naadir ah oo goobtaadu ku shaqeyso server-yar oo aad u yar oo leh ilo yar oo la heli karo, server-ka laftiisa ayaa dhab ahaantii barafoobaya ama burburi doona.

Sida Loo Aqoonsado Weerar DDoS?

Sideed ku ogaan kartaa haddii degelkaaga uu hadda u dhacay weerarka DDoS dartiis^(DDoS) ? Waxaa jira calaamado dhowr ah oo ah wax-bixin dhintay.

Caadiyan, khaladka HTTP 503^{(HTTP Error 503)} ee kor lagu sharaxay waa tilmaan cad. Si kastaba ha noqotee, calaamad kale oo ah weerarka DDoS waa koror aad u xoog badan oo bandwidth ah.

Waxaad tan ku arki kartaa adiga oo gasha akoonkaaga martigeliyahaaga webka oo furo Cpanel . Hoos ugu dhaadhac qaybta Logs oo dooro Bandwidth .

Shaxda xadhkaha goos gooska caadiga ah ee 24-kii saacadood ee u dambeeyay waa in ay muujisaa xariiq joogto ah, marka laga reebo dhawr xabo oo yaryar.

Si kastoy ahaataba, korodhka xadhkaha goosadka ah ee dhawaanahan ku sii jiraya in ka badan saacad ama ka badan ayaa calaamad cad u ah in aad wajahayso weerar DDoS ah oo ka dhan ah serfarka mareegtaada.

Haddii aad aaminsantahay in aad aqoonsatay weerarka DDoS , waa muhiim in aad si degdeg ah wax u qabato. Weeraradaasi waxay lumiyaan xaddi badan oo shabakadeed oo haddii aad lacag ku bixisay bixiye martigelinaya, taasi waxay la macno tahay server-kooda xogtu waxay la kulmi doonaan koror la mid ah xawaaraha bandwidth. Tani waxay saameyn xun ku yeelan kartaa macaamiishooda kale sidoo kale.

Sida Loo Joojiyo Weerarka DDoS

Ma jiraan wax aad adigu samayn karto haddii aad la kulanto weerarka DDoS . Laakin adoo wacaya bixiyahaaga martigelinta shabakada^{(your web hosting provider)} , waxay isla markiiba xannibi karaan dhammaan codsiyada HTTP soo galaya ee ku wajahan seerfarkaaga shabakad.

Tani waxay isla markiiba yaraynaysaa baahida loo qabo seerfarkaaga shabakadda, si aanu serfarka laftiisu u burburin. Waxa kale oo ay ka hortagtaa weerarku inuu si xun u saameeyo bixiyaha martigelinaya macaamiisha kale.

Tallaabada xigta waa in la sugo ilaa weerarka DDoS uu dhammaanayo.

Weerarkan oo kale wuxuu dhab ahaantii u baahan yahay ilo muhiim ah oo loogu talagalay hackers-ka. Caadiyan, weerarka waxaa bixiya qof rabay inuu xiro mareegahaaga. Lacagahaas waxaa loogu talagalay weerar soconaya waqti gaar ah, saacad ilaa dhowr saacadood.

Warka wanaagsani waa in la soo afjari doono weerarka. Akhbaarta xun ayaa ah in adigoo xiraya dhammaan taraafikada server-kaaga shabakada ilaa uu weerarku ka dhammaanayo, qofka doonayay inuu xiro mareegahaaga ayaa si dhab ah u guuleystay.

Sida Looga Guulaysto Weerarka DDoS

Nasiib darro, weerarrada DDoS waa hab fudud oo aan qaali ahayn oo lagu xidho mareegaha wakhti gaaban.

Weeraradu weligood ma aha kuwo joogto ah, laakiin waxa loogu talagalay in ay farriin diraan. Waxay la macno tahay in wax aad ku daabacday degelkaaga ay ka cadhaysiisay qof ku filan in ay diyaar u yihiin inay lacag ku bixiyaan tuugada si ay u weeraraan goobtaada.

Haddii aad maamusho hawlgal online ah oo muhiim ah sida ganacsi weyn, oo aad u baahan tahay in goobtaadu u adkaysato weerarada DDoS , waa suurtogal laakiin maaha mid raqiis ah.

Adeegyada ilaalinta DDoS^(DDoS) waxay ku shaqeeyaan iyagoo samaynaya nooc ka mid ah botnet counter-ka kaas oo ka weyn botnet-ka ku socda weerarka DDoS . Tani waxay abuurtaa jawaab qaybsan codsiyada HTTP ee soo socda , xitaa haddii ay jiraan boqolaal kun ama malaayiin codsiyadaas ah.

Waxa jira khidmad adeeg oo bishiiba la socota adeegyadaas. Laakin haddii aad isu aragto dhibbane joogto ah oo weerarrada DDoS ah, adeegyadan ilaalinta ^(DDoS)DDoS waxa laga yaabaa inay aad ugu qalmaan kharashka.

Weerarada DDoS^(DDoS) waxay ugu fiicnaan karaan dhib yar taasoo kuu keenta saacado yar oo website ah. Marka ugu xun, waxay kugu kici kartaa lacag aad u badan oo ah ganacsiga khadka ee lumay, iyada oo aan la xusin hoos u dhaca macaamiisha ku kalsoon boggaaga.

Fahamka sida loo aqoonsado weerarka DDoS iyo sida loo joojiyo waxay yarayn kartaa wakhtigaaga hoos u dhaca, oo waxay dhimaysaa wakhtiga ay ku qaadanayso adiga iyo bixiyahaaga martigelinaya inaad ka soo kabsato.

How To Identify a DDoS Attack On Your Server & Stop It

A distribυted dеnial of service (DDoS) attack can happen to anyone, at any time. If you have a website that’s running on a dedicated web server, it’s important to understand what a DDoS attack is, how to identify it, and what to do to stop and prevent it.

What Is a DDoS Attack?

A distributed denial of service attack is when a hacker uses a botnet to send your web server an overwhelming number of HTTP requests in a very short period of time.

A botnet is a very large network of computers across the internet that are infected with a virus that transforms them into a relay for the hacker’s software. Most computers on a botnet are regular computers that have become infected by a virus, and the user doesn’t even realize it.

During normal operation, a web server provides your web page to visitors as follows:

• A person types your URL into their web browser.
• The web browser issues an HTTP request to the website URL.
• Your ISP’s DNS servers converts the URL into the correct IP address of the web server.
• The HTTP request gets directed across the internet to the web server.
• The web server uses the page requested in the URL to find the correct HTML file.
• The web server responds with all of the content contained in that HTML file.
• The user’s browser receives the HTML file and displays the page to the user.

Most web servers are sized with CPU and network hardware to handle the average expected traffic per day. For some websites, that could be up to a hundred thousand, or even a million visitors in one day.

However, a hacker hoping to attack your website with a DDoS attack will utilize a botnet of millions of computers from around the world, to send thousands of HTTP requests per second to your web server.

Since your web server wasn’t sized for that volume of traffic, the web server will respond to your regular website visitors with the error message, Service Unavailable. This is also known as HTTP error 503.

In rare cases where your site is running on a very small web server with few available resources, the server itself will actually freeze or crash.

How To Identify a DDoS Attack?

How do you know if your website just went down because of a DDoS attack? There are a few symptoms that are a dead giveaway.

Usually, the HTTP Error 503 described above is a clear indication. However, another sign of a DDoS attack is a very strong spike in bandwidth.

You can view this by logging into your account with your web host and opening Cpanel. Scroll down to the Logs section and select Bandwidth.

A normal bandwidth chart for the last 24 hours should show a relatively constant line, with the exception of a few small spikes.

However, a recent disproportionate spike in bandwidth that remains high over an hour or more is a clear indication that you’re facing a DDoS attack against your web server.

If you believe you’ve identified a DDoS attack in progress, it’s important to act fast. These attacks consume a lot of network bandwidth and if you’ve paid for a hosting provider, that means their data server will experience the same spike in bandwidth. This can have an adverse impact on their other customers as well.

How To Stop a DDoS Attack

There is nothing you can do yourself if you’re facing a DDoS attack. But by calling your web hosting provider, they can immediately block all incoming HTTP requests headed toward your web server.

This instantly relieves the demand on your web server, so that the server itself won’t crash. It also prevents the attack from adversely affecting the hosting provider’s other customers.

The next step is to wait until the DDoS attack is over.

Such an attack actually requires significant resources for hackers. Usually, the attack is paid for by someone who wanted to shut your website down. These payments are for an attack that last a specific period of time, from an hour to several hours.

The good news is that there will be an end to the attack. The bad news is that by blocking all traffic to your web server until the attack is over, the person who wanted to shut down your website essentially won.

How To Beat a DDoS Attack

Unfortunately, DDoS attacks are a simple and inexpensive way to shut down a website for a short period of time.

The attacks are never permanent, but they’re intended to send a message. It means that something you’ve published on your website upset someone enough that they were willing to pay hackers to attack your site.

If you run a critical online operation such as a large business, and need your site to be resistant to DDoS attacks, it’s possible but it isn’t cheap.

DDoS protection services work by establishing a sort of counter botnet that’s larger than the botnet running the DDoS attack. This creates a distributed response to the incoming HTTP requests, even if there are hundreds of thousands or millions of those requests.

There are monthly service fees that come with those services. But if you find yourself a frequent victim of DDoS attacks, these DDoS protection services may very well be worth the cost.

DDoS attacks can be at best a minor nuisance that causes you a few hours of website downtime. At worst, it could cost you a significant amount of lost online business, not to mention a drop in customers who trust your website.

Understanding how to identify a DDoS attack and how to stop it could reduce your downtime, and reduce the time it takes for you and your hosting provider to recover from it.

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