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Hacking > Common Service Information > Flashcards

Common Service Information Flashcards

Terminology and explanations relating to common services

1
Q

What is another word for an SMTP client? (software)

A

MUA (Mail User Agent)

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2
Q

What is another word for an SMTP server? (software)

A

MTA (Mail Transfer Agent)

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3
Q

Whats another word for an SMTP relay server?

A

MSA (Mail Submission Agent)

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4
Q

Whats another word for the recipient mail server?

A

Mail delivery agent (MDA)

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5
Q

Describe the path of an email being sent

A

Client (MUA) ➞ Submission Agent (MSA) ➞ Open Relay (MTA) ➞ Mail Delivery Agent (MDA) ➞ Mailbox (POP3/IMAP)

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6
Q

How can you interact with an SMTP server?

A

telnet

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7
Q

How can you enumerate users on a system with SMTP?

A

VRFY command

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8
Q

How does a mail server check that a mail from bob@example.com has originated from example.com’s mail server?

A

It checks the SPF record for example.com and compares the originating IP from the email with the ips listed in the SPF record for example.com

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9
Q

Whats an IMAP configuration setting that enables debug loggin?

A

auth_debug

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10
Q

Whats an IMAP configuration setting that logs all submitted passwords?

A

auth_debug_passwords

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11
Q

Whats an IMAP configuration setting that logs unsuccessful authentication attempts and their reasons?

A

auth_verbose

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12
Q

Whats an IMAP configuration setting that logs and truncates passwords used to authenticate?

A

auth_verbose_passwords

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13
Q

Whats an IMAP configuration setting that specifies the username to be used when logging in with the ANONYMOUS SASL mechanism?

A

auth_anonymous_username

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14
Q

Do SNMP v1 and v2 have builtin encryption?

A

No

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15
Q

Why is SNMP v3 more secure?

A

Because you authenticate with a password encrypted via PSK

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16
Q

What are SNMP comunity strings?

A

Like a userid or password used to authenticate so SNMP v1 and v2. transmitted unencrypted.

17
Q

What are the default values for SNMP community strings?

A

‘public’ and ‘private’

18
Q

Which SNMP configuration setting provides access to the full OID tree without authentication

A

rwuser noauth

19
Q

Which SNMP configuration setting provides access to the full OID tree regardless of which ipv4 address the requests were sent from.

A

rwcommunity [community string] [IPv4 address]

20
Q

Which SNMP configuration setting provides access to the full OID tree regardless of which ipv6 address the requests were sent from.

A

rwcommunity6 [community string] [IPv6 address]

21
Q

How are SNMP OIDs denoted?

A

[decimal].[decimal]

22
Q

What are MIBs in an SNMP agent?

A

A mib is a heirarchical database with SNMP objects each with its own unique OID which shows its location in the database

23
Q

What is a LAMP website?

A

A website with components:
Linux
Apache
Mysql
Php

24
Q

What is a LEMP website?

A

A website with components:
Linux
Nginx
Mysql
Php

25
Q

Which MYSQL server config defines which user the db will run as?

25
Q

Which MYSQL server config sets the db password for the user?

26
Q

Which MYSQL server config sets the IP address on which to listen for TCP/IP connections on the administrative network interface

A

admin_address

27
Q

Which MYSQL server config indicates the current debugging settings?

28
Q

Which MYSQL server config sets whether single-row INSERT statements produce an information string if warnings occur.

A

sql_warnings

29
Q

Which MYSQL server config is used to limit the effect of data import and export operations.

A

secure_file_priv

30
Q

What are the system dbs in MSSQL?

A

master
model
msdb
tempdb
resource

31
Q

Whats the role of the master db in MSSQL?

A

Tracks all system information for an SQL server instance

32
Q

Whats the role of the model db in MSSQL?

A

Template database that acts as a structure for every new database created. Any setting changed in the model database will be reflected in any new database created after changes to the model database

33
Q

Whats the role of the msdb db in MSSQL?

A

The SQL Server Agent uses this database to schedule jobs & alerts

34
Q

Whats the role of the tempdb db in MSSQL?

A

Stores temporary objects

35
Q

Whats the role of the resource db in MSSQL?

A

Read-only database containing system objects included with SQL server

36
Q

What user will the MSSQL server instance run under when network accessible?

A

NT SERVICE\MSSQLSERVER

37
Q

Which OID contains the printer password in hex for DirectJet printers?

A

.1.3.6.1.4.1.11.2.3.9.1.1.13.0

38
Q

What’s the default password of the Oracle DBSNMP service?

Hacking (15 decks)

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