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Tag: network-protocols
How do Internet (ISP/AS) routers send IP packets to each other
Problem : I know how computers in a LAN communicate with each other (all the Ethernet/MAC address/NAT etc stuff), but […]
Authority section in DNS packet contains only NS records?
QUESTION : I’m new to DNS and I’m trying to understand the DNS packet format. From what I understand, the […]
LOCAL SERVER and telnet
QUESTION : Finally, after many attempts and days, I managed to connect 2 computers using the telnet client and the […]
Why does Knoppix mess up my internet connection?
QUESTION : I have this problem that when I boot Knoppix on my Windows box, it screws up the internet […]
Unknown Inbound UTP Packets
QUESTION : I need some help figuring out something. I was looking at my network traffic using Wireshark and I […]
sent packet is different from received packet
QUESTION : I use raw socket to create TCP packets, with focus on the sequence number and TCP flags(SYN, ACK) […]
three way handshake in application protocols?
QUESTION : I was reading an article (https://www.inetdaemon.com/tutorials/internet/tcp/3-way_handshake.shtml) which says: FTP, Telnet, HTTP, HTTPS, SMTP, POP3, IMAP, SSH and any […]