Azure Advanced Raiders-Azure network does not pass, psping&paping tell you the answer

Many times, in order to solve some problems, to check all kinds of documents, very troublesome you build it! Do "Hand party" and easy to be despised, this time need to use "Azure advanced strategy" ! We hereby launch a series of articles on the Azure Common Operations Guide, each of which deals with a problem in azure usage, a concise and straightforward focus, and pure dry content to help you quickly take care of azure usage challenges and obstacles, and in just two minutes you'll be able to continue to fly happily in the clouds.

In the world of technicians and network engineers, there are some well-known troubleshooting methods, such as:

-You first Ping a computer, see if it is open,

-I can ping through the router, but the ping does not pass the extranet, where is the problem?

-ping is not necessarily the network does not pass, you first shut down the firewall to try,

-I Ping a bit, packet loss rate of 75%! There must be something wrong.

......

In general, we are accustomed to using the Ping command in order to test whether a packet can reach a particular host via the IP protocol. The Ping command sends a IMCP echo request packet to the target host and waits for the Echo response packet to be received, estimating the packet loss rate and network latency through the response time and the number of successful responses.

However, because of the limitations of the work principle, in Azure, ICMP packets cannot pass through firewalls and load balancers, so it is not possible to use Ping directly to test the connectivity of VMS and services in Azure (the traffic in the VPN and ExpressRoute channels does not go through the load balancer, So as long as the firewall on the link allows ICMP packet delivery, the ping is still available at this time.

Psping or paping is a good choice for testing connectivity in Azure, such as testing RDP, whether the SSH port is available, or the stability of HTTP, HTTPS services, or even testing connections from Azure to external services.

Psping is one of the tools in the Microsoft PSTools Toolkit that can be used to test the connectivity of TCP ports as well as TCP/UDP network latency and bandwidth, in addition to ICMP Ping testing.

Currently psping can only be run in Windows, and if you need to test TCP port connectivity and network latency in Linux, you can choose to use paping. Paping is a cross-platform, open-source tool that is simpler to function than psping, and supports only testing TCP ports, not UDP port testing.

Simply put, we can understand psping and paping as a Ping tool for Azure cloud environments. Given the breadth of the use of PING commands in your on-premises environment, as everyone is on the cloud and getting started with Azure, it's certainly necessary to have the tools ready for backup as well!

Where to download? How do I use it? What command line arguments are supported? What is the purpose of each parameter? Click the button below to learn more ~

Of course you can also download and install psping or paping directly via these two links.

Do you think it's helpful to use the two tools, psping and paping? At the same time, what do you want to see in terms of content? Small series According to the usual degree of Operation Guide, first listed a few items, you can vote to say what you think Oh ~

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Azure Advanced Raiders-Azure network does not pass, psping&paping tell you the answer