CEHv10 Ports to know Flashcards
20/21
FTP (20-actual file transfers can take place) (21-command or control port)
22
SSH/TLS
23
Telnet
25
SMTP
42
WINS (TCP) - Port Description: Host Name Server. Obsolete nameserver (originally DARPA’s trivial name server, replaced by DNS) and is currently used by Microsoft hosts for WINS server for NetBIOS name resolves. May also be still found on some older Unix systems. Disable on all non-MS-WINS hosts.
49
TACACS
53
DNS
80/8080
HTTP
88
Kerberos
110
POP3
111
Portmapper (Linux)
119
NNTP - The Network News Transfer Protocol (NNTP) is an application protocol used for transporting Usenet news articles (netnews) between news servers and for reading and posting articles by end user client applications.
123
NTP
135
RPC-DCOM - Remote Procedure Call (RPC) dynamic port allocation is used by server applications and remote administration applications such as Dynamic Host Configuration Protocol (DHCP) Manager, Windows Internet Name Service (WINS) Manager, and so on. RPC dynamic port allocation will instruct the RPC program to use a particular random port in the range configured for TCP and UDP, based on the implementation of the operating system used
137-139
NetBIOS/SMB - NetBIOS is a protocol used for File and Print Sharing under all current versions of Windows. While this in itself is not a problem, the way that the protocol is implemented can be.
NetBios services:
NETBIOS Name Service (TCP/UDP: 137)
NETBIOS Datagram Service (TCP/UDP: 138)
NETBIOS Session Service (TCP/UDP: 139)
143
IMAP - Internet Message Access Protocol (IMAP) - used for retrieving, organizing, and synchronizing e-mail messages
161/162
SNMP - The SNMP agent receives requests on UDP port 161.
The manager receives notifications (Traps and InformRequests) on port 162.
When used with Transport Layer Security or Datagram Transport Layer Security, requests are received on port 10161 and notifications are sent to port 10162.
The are 2 types of community strings:
public mainly read only functions
private Read/Write in general
389
LDAP
636
LDAP Secure
443
HTTPS (SSL/TLS)
445
CIFS - Common Internet File System (CIFS) is a specific implementation of SMB that enables file sharing. Many people mistake CIFS as a different protocol than SMB, when in fact they use the same basic architecture.
1812
RADIUS
3389
RDP
6667
IRC
