The else branch sends nothing | Rapid course Authorized offensive security and red team

Lesson map

Lesson 10. Map, example, EX056.

flowchart TD
  E["else assigns a string"] --> P["print writes the line"]
  P --> N["No socket, no DNS, no packet"]
  N --> K["Two lines use that else"]

The else is live code. Its only effect is a line of text.

Logical drawing

imports
  ipaddress only
calls that are absent
  socket, DNS, connect
else runs for
  192.0.2.130
  198.51.100.7

Learning outcomes

After this chapter, you should be able to:

Name the only import.
Say which two lines come from the else.
Refuse a claim that the script probed those addresses.

10.1 A verdict string is not a packet.

The file imports ipaddress and nothing else. ip_address and ip_network parse text into objects in memory. The else stores the words OUT OF SCOPE - do not test and the print writes them. There is no socket, no name lookup, and no connection. The comment at the top says no network traffic is sent. The branch structure agrees with that comment: every path ends at print.

Two of the four lines take the else. That means the branch is used. It is not a leftover. Using it still does not contact 192.0.2.130 or 198.51.100.7. A later reader who "finishes the lab" by reaching those addresses has left the file.

Lesson table; scroll horizontally to read all columns →

Path	Lines that take it	Leaves the machine?
`if` excluded	The payroll line	No
`elif` in network	The `.5` line	No
`else`	`.130` and `198.51.100.7`	No

10.2 Worked example

Lesson table; scroll horizontally to read all columns →

Offered claim	What the file contains	Decision
"The miss lines are local prints."	`print` of a string	Keep
"The else is dead, so those rows were typed by hand."	Two inputs take it	Refuse
"Out of scope means the script checked the host and found it down."	No such check	Refuse

Synthetic case. The classroom pack never leaves the interpreter.

Errors and limits

Do not add a network call so the refusal "really" checks a host.

Apply

EX056 — No packet. Which import does the scope script use, which lines take the else, and does that branch contact a host?
Show marking criteria
Rubric: 3 = ipaddress only; .130 and 198.51.100.7 take the else; the branch prints and does not contact a host;; 2 = the miss lines are prints and no packet is sent;; 1 = one fact;; 0 = none.