Category: Network Attack

SNMP (Simple Network Management Protocol) is a protocol that allows you to monitor the status of devices on a computer network. It can be network equipment, IP phones, corporate servers or anything else. SNMP uses the UDP transport layer protocol with port numbers 161/UDP and 162/UDP. So-called community strings are used to refer SNMP agents […]

Sniffing vs Eavesdropping Sniffing is a straightforward way to passively obtain a lot of information about the network. You can use it to identify hosts, services, device types, protocols, subnets, IP addresses, and much more. Sniffing particularly takes advantage of cleartext protocols such as TCP, UDP, IP, ARP, ICMP, IGMP, LDAP, SNMP, SMB, FTP, DNS, […]

https://tryhackme.com/room/networkservices2 NFS allows a system to share directories and files with others over a network. By using NFS, users and programs can access files on remote systems almost as if they were local files. It does this by mounting all, or a portion of a file system on a server. The portion of the file […]

File Transfer Protocol (FTP) is a protocol used to allow remote transfer of files over a network. It uses a client-server model to do this, and relays commands and data in a very efficient way.  The standard port is 21. A typical FTP session operates using two channels: The command channel is used for transmitting […]

If this service is running, it is a bright red flag that should be looked into immediately. Telnet does not require credentials. TryHackMe has a paid room that teaches Telnet. https://tryhackme.com/room/networkservices Telnet is an application protocol which allows the use of a telnet client to connect and execute commands on a remote machine that’s hosting […]

SMB is a client-server communication protocol used for sharing resources on a network.  Server Message Block (SMB) allows clients to read from and write to a server service, providing core authentication and communications for Windows file and print servers. It was (and is) so popular that *nix operating systems created their own compatible Samba service […]