How to Flush DNS Cache From Your Computer?
This article is the guide to clear and reset the DNS resolver cache, which stores the IP address attached to frequently used DNS names. It is also useful to speed up the DNS propagation for a newly added or modified domain, at least it will remove the local cache from your terminal/PC and allow you to receive the most recent cache.
Flushing DNS in Microsoft Windows
In Microsoft Windows, you can use the command ipconfig /flushdns to flush tPopularHow to perform a connectivity test from your location to the GB Network Solutions Server?
Go to network test page that powered by GB Network Solutions : https://nt.gbnetwork.my/
Click on Speed Test.
Click on Start to perform the speed test.
You'Few readersLOA: Letter of Authorization IP Announcement and/or Acceptance
GB Network Solutions can announce and/or accept your Public IPv4 and IPv6 AS numbers and subnets under the GB Network Solutions ASN. However, this will only proceed after receiving a signed Letter of Authorization (LOA).
Below, an example of what you can use as a template:Few readersDNS Cache Poisoning
A DNS cache becomes poisoned (sometimes also called polluted) when unauthorized domain names or IP addresses are inserted into it.
Occasionally a cache may become corrupted due to technical glitches or administrative accidents, but DNS cache poisoning is typically associated with computer viruses or other network attacks that insert invalid DNS entries into the cache.
This poisoning causes client requests to be redirected to the wrong destinations, usually maliciFew readersHow to use PING command ?
The ping command is useful for determining the status of the network and various foreign hosts, tracking and isolating hardware and software problems, and testing, measuring, and managing networks.
You can get the 4 line ping result by following the steps below:
Click Start Click Run or Windows+R
type cmd in the text field, then click OK
On the command prompt, type ping yourdomainname.com then press enter.Few readersWhat is a DNS Cache?
A DNS cache (sometimes called a DNS resolver cache) is a temporary database, maintained by a computer's operating system. A DNS cache contains records of all recent visits and attempted visits to Websites and other Internet domains.
The Internet relies on the Domain Name System (DNS) to maintain an index of all public Websites and their corresponding IP addresses. Every time a user visits a Website by its name, the user's Web browser inFew readersUnix Traceroute and Ping Program - MTR
MTR is the program used to perform traceroute and ping test. This application is supported for most of the Linux Distro and Macintosh device.
For Ubuntu user, you may execute the following command to install MTR.
sudo aptitude install mtr
For other Unix distro, you may download the source file here and install them
Once it is installed, you may perform the test like,
mtr domain.comFew readersHow to use Ping on a macOS ?
macOS also comes with a terminal service window, much like Unix or Microsoft Windows Command Prompt.
Here’s how to use the ping utility on macOS from the command line:
Press Command button and Space Button to launch Spotlight
Find Terminal and open it
After you have opened the Terminal, you may just perform a ping for the domain that you wish for.
ping yourdomainname.com.my
4. Press Control and Z button to stop the pingFew readersTrace Route
Trace route enables users to look on the hop of their connection from their ISP to the destination server.
Each operating system having its own command on trace route:
Click on the Start menu and select Run command
Type cmd (XP/2k/NT) or command (95/98/Me) and hit enter. A command window will come up.
3. Type the following command in the commandFew readersHow DNS Caches Work and How to display DNS ?
Before a browser issues its requests to the outside network, the computer operating system intercepts each one and looks up the domain name in the DNS cache database.
The database, stored in the computer's temporary memory, contains a list of all recently accessed Internet domain names and the addresses that DNS calculated for them the first time a request was made for them.
The contents of a local DNS cache can be viewed on Windows usingFew readersDNS and the World Wide Web (WWW)
All public Websites run on servers connected to the Internet with public IP addresses.
The Web servers at hello.com, for example, have addresses like 207.241.148.80.
Although people can type address information like http://207.241.148.80/ into their Web browser to visit sites, being able to use proper names like http://www.hello.com/ is much more practical.
The Internet utilizes DNS as a worldwide name resolution service for public WebsiteFew readersHow to announce my IP Address?
GB Network Solutions runs our own network under AS Number AS132372, we have the ability to announce our client's owned or leased IP address space.
Since announcing your IP address space does take additional time, maintenance, and resources, GB Network Solutions charges the following fees for announcing space. We require a letter of authorization and all space should have the appropriate IRR objects entered (ROA) and an RPKI.Few readersTypes of DNS Lookups
DNS is most commonly used by Web browsers, automatically converting Internet domain names to IP addresses.
Beside these forward lookups, the DNS is also used for:
finding the correct servers to deliver Internet email
reverse lookups that convert an IP address back to a domain name
The network requests supporting DNS lookups run over TCP and UDP, port 53 by default.Few readersPingPlotter
If you are having slow website access, it would be best to send us the trace route results via PingPlotter as it would help us in identifying the issue better.
Download from pingplotter.com website
Requirement: Microsoft Windows Operating System
Go to http://www.pingplotter.com/ → Free Download → Ping Plotter Freeware or directly download from https://www.pingplotter.com/download
(https://storage.crisp.chat/users/helpdesk/website/67938060e89a4400/pingplotFew readers
