Category Archives: Networks

Is your ISP really to blame for your slow connection ?

Blaming your ISP for your slow connection is the easy way out , but in most cases its something else , either someone in the house is using up all the bandwidth by downloading torrents or its windows downloading updates. We are going to break down what are some common issues and fixes for slow internet speeds.

Give that old router a good old hard reboot

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Try rebooting your router by switching it on and off , check that your routers cabling is intact since bent cables can wreak havoc on your internet speed.

Test your speed

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Use sites like Speedtest to check that you are getting what you pay for . For example if you are paying for 10mpbs / 2mbps and are getting lower than that its time to start looking into things .

Configure you WIFI

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When every one sets up a wifi router the forget that it is prone to interference by other devices especially on the 2.4ghz range . What we can do is either change our signal to 5ghz which is much less prone to interference but less devices can use it or try changing the channel which our signal is broadcast . The best way to test which channels are used the most is by using android apps like WifiAnalyzer which can show you the most populated channels .

Enable QOS(Quality Of Service)

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Some routers have QOS function which monitors network traffic and prioritizes it to services which require more bandwidth such us VOIP which uses the UDP protocol. UDP does not use a handshake protocol there for its prone to unreliability when not enough bandwidth is allocated which can cause jitters and pixelation .

Turn off unnecessary applications

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Most off the time internet speeds suffer when the user has lots of applications running that use up bandwidth on the network for example you don’t have to have Steam , Skype and Origin running all the time if you are not going to play a game or call someone . These applications will check constantly for updates and will download them automatically causing network speed degradation.

Consider using Opera

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Opera is a web browser with build in features to deal with slow internet connections by compressing web pages  so less data in downloaded and web pages can be displayed faster . Its easy to set up with just a click of a button.

Call your ISP

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If all else fails call your ISP and see if they can resolve the issue for you .  Sometimes it might be that the area you live in is not well covered by your ISP or there is a malfunction with one of the ISP service lines , calling to confirm this is not a bad idea.

 

 

How to Protect Yourself From Ransomware

The Big Issue: Ransomware

With the wanna cry ransomware outbreak this week and many people vulnerable to the attack  many people are very paranoid in using their computer fearing they might get infected as well. Not to worry though here are some steps you can take in order to protect yourself:

Step 1: Install Anti-Virus / Anti-Malware

Ransomware

Install a good anti-virus and anti malware  software on you computer . You don’t have to break the bank to have a good anti-virus and anti – malware software there are many out there that are free to use such as Sophos home and Malware bytes . Having one install can mostly likely stop the virus or block before it runs but that all depends on the virus off coarse . Both Sophos and Malware byte integrate with your browser and filter the web-pages blocking any websites that might contain viruses or malicious javascript  .

Step 2 :  Stop Clicking Suspicious links

Stop opening suspicious links  or attachment sent to you by email or instant messages . Think about for a bit do you really order something from UPS/DHL etc that they need you to check it out via email ? Hackers are sending these emails that try to convince users to open suspicious attachments that contain the virus . Don’t be stupid think twice before opening any email attachment especially if its from some random person you don’t even know .

Step 3 : Upgrade your system

Install the latest updates for your system and consider upgrading your system . Most of the users affected by the Wannacry ransomware are people using outdated operating systems such as windows XP and windows 7 which Microsoft has stopped rolling out updates a while ago . Since the attack Microsoft was forced to release patches for the Operating Systems to stop the virus from spreading . Its quite logical that many companies might still use older operating systems because of driver issues with older hardware which still work and there is no need to change them , if that is the case then proper network security should take place that will prevent a virus from spreading if the older system does manage to be infected.

Step 4 : Switch to Linux

I can not stress how much more secure Linux is and how stable it is . Sure there are viruses out there for Linux and Mac but they are much less in comparison to Windows Os and for good reason , since the user base is much smaller . Linux might not be for everyone but there is a Linux Distribution out there that can fit the needs of any individual be it playing games, composing music , running a server etc.

 

 

Network Communication protocols

These technologies to work need internet protocols to allow them to send data through out the internet . These technologies are :

  • Peer to Peer : this protocol makes the clients that want the data into “servers” . This splits up the data to different computers and you give and take data as you are connected . Unlike other protocols which degrade with more users peer to peer increases performance as more users join in, but suffers from “leechers” that only download the files but never upload back causing a degradation in performance.

  • TCP/IP : is a protocol that consists of a Client and a Server . This means that most of the time your download speed is only limited by your Isp and the amount of people connected to the server . It is the most stable of protocols but degrades in performance as more and more users connect to it .

  • UDP : User Datagram Protocol is a protocol which is much faster than TCP/IP and has less latency than other protocols it is used for things likes VOIP and online games that need a fast connection. Although UDP is fast is easily prone to interference and will continue sending packets even if a packet is lost .