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GAQM CPEH-001 Exam - Topic 2 Question 117 Discussion

Actual exam question for GAQM's CPEH-001 exam
Question #: 117
Topic #: 2
[All CPEH-001 Questions]

While examining audit logs, you discover that people are able to telnet into the SMTP server on port 25. You would like to block this, though you do not see any evidence of an attack or other wrong doing. However, you are concerned about affecting the normal functionality of the email server. From the following options choose how best you can achieve this objective?

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Suggested Answer: E

Blocking port 25 in the firewall or forcing all connections to use username and password would have the consequences that the server is unable to communicate with other SMTP servers. Turning of the SMTP service would disable the email function completely. All email servers use SMTP to communicate with other email servers and therefore changing email server will not help.


by Caitlin at Nov 19, 2025, 04:19 AM

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Valentin
1 day ago
I agree with C. Username and password adds security.
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Martha
6 days ago
Shutting off SMTP? That's drastic! B is not wise.
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Susana
11 days ago
A seems straightforward. Better safe than sorry.
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Audrie
17 days ago
But won't that disrupt email? Maybe C is safer.
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Beatriz
22 days ago
Switching to UNIX Sendmail might not be necessary if we can just secure port 25.
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Jade
27 days ago
Wait, people are still using telnet for SMTP? That's wild!
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Elmira
2 months ago
Forcing username and password sounds reasonable, but is it enough?
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Lakeesha
2 months ago
I disagree, shutting off the SMTP service would break email functionality!
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Gianna
2 months ago
Ah, the age-old debate: Windows vs. Unix. I say, let's just turn off the darn SMTP service and call it a day. No need to start a holy war here.
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Sabra
2 months ago
Switching to Sendmail? That's like trading your Honda Civic for a horse and buggy. Stick with what you know, folks.
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Galen
2 months ago
Forcing username and password authentication is overkill. Just turn off the SMTP service and call it a day.
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Vincenza
2 months ago
Blocking port 25 at the firewall might work, but it could cause issues with other services. Better to disable the SMTP service directly.
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Tammy
3 months ago
Option B is the way to go. Shutting off the SMTP service is the most straightforward solution.
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Rosio
3 months ago
I vaguely recall a practice question about switching email servers, but I don't think changing to UNIX Sendmail would solve the telnet issue either.
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Abel
3 months ago
Forcing connections to use a username and password sounds like a good idea, but I’m not sure if that would actually prevent telnet access.
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Kaitlyn
3 months ago
I think shutting off the SMTP service entirely would definitely stop telnet access, but then we wouldn't be able to send or receive emails at all.
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Annice
3 months ago
I remember we discussed how blocking port 25 might disrupt email delivery, but isn't it risky to leave it open?
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Lettie
3 months ago
I'm not sure about this one. Blocking port 25 seems like the obvious choice, but I don't want to cause any disruptions. Maybe I'll ask the instructor for some guidance on the best approach.
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Lamonica
4 months ago
I think A is the best choice. Block it at the firewall.
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Timothy
4 months ago
Forcing authentication could work, but that might be a hassle for users. I'm leaning towards blocking port 25 at the firewall, but I want to make sure I understand the implications first.
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Leonida
4 months ago
Blocking port 25 at the firewall seems like a solid move.
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Mari
4 months ago
Blocking port 25 is probably the simplest solution, but I'm worried about the impact on normal email functionality. I'll have to think this through carefully.
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Josephine
5 months ago
I'm a bit confused. Shutting off the SMTP service or switching to Sendmail seems a bit extreme. Maybe forcing authentication is a good compromise?
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Argelia
5 months ago
Hmm, this is a tricky one. I don't want to disrupt the email server, but blocking port 25 seems like the safest bet.
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Daniel
4 months ago
Blocking port 25 sounds reasonable. Better safe than sorry.
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