TCP vs UDP – 10 Differences between TCP and UDP
TCP vs UDP – Acronym TCP vs UDP – Connection TCP vs UDP – Protocols TCP vs UDP – Packet Order Packets are carried over Internet Protocol (IP), which pays no attention to packet order. TCP vs…
David Cao
David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.
Understanding TCP Sequence Number with Examples
TCP Sequence Number is a 4-byte field in the TCP header that indicates the first byte of the outgoing segment. It helps to keep track of how much data has been transferred and received. The TCP Sequence Number field is…
Understanding TCP Socket With Examples
TCP socket is a fundamental concept in the operation of TCP/IP application world. We will deep dive into the details of how the TCP socket works. Network Socket For example, if we have a website running on IP address 100.1.1.1,…
Tcpdump: Filter UDP Packets
tcpdump is a powerful command-line network packet analyzer used for network troubleshooting and analysis. To capture UDP packets using tcpdump, you can use specific filtering options to narrow down the traffic you want to capture. UDP Protocol UDP is a…
Tcpdump: Filter Packets By Port
Tcpdump is a CLI tool to capture raw network packets. It is very useful for various forms of network troubleshooting. We will learn how to filter packets by port in tcpdump command. TCP and UDP Ports Our system uses ports…
Understanding Portmap with NFSv3 and Port 111
Portmap is a service that converts RPC program numbers into protocol port numbers. It must be running in order to make RPC calls. Portmap makes the dynamic binding of remote programs possible. NFSv3 is based on portmap. We will dive…
Understanding Rpcbind and RPC and Port 111
The rpcbind is a utility that converts RPC program numbers into universal addresses. It must be running on the host to be able to make RPC calls. We will dive into RPCbind today to see how it works. Understanding RPC…
Understanding NFS Port 2049 With Examples
Network File Sharing (NFS) is a protocol that allows us to share directories and files with other Linux clients over a network. The ports for NFS are confusing for many people. We will deep dive into this today. NFSv3 Port…
How Nodetool Removenode And Decommission Work
We can take a node out of the cluster with nodetool decommission to a live node, or nodetool removenode (to any other machine) to remove a dead one. This will assign the ranges the old node was responsible for to…
10 Bash for Loop In One Line Examples
Bash For loop is used to execute a series of commands until a particular condition becomes false. Bash for loop in one line is very handy for Linux admins. Bash for loop in one line is a control structure that…