Linux OS: Incorrect Entry in hosts.allow and hosts.deny Prevents SSH Access (Doc ID 2726450.1)

Last updated on NOVEMBER 12, 2020

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Linux x86-64

Cannot login via ssh(1) after creating /etc/hosts.allow and /etc/hosts.deny files.

The steps followed to harden the system were taken from the "CIS Benchmarks for Oracle Linux 7 version 2.1.0"

Section "3.4.2 Ensure /etc/hosts.allow is configured (Scored)".

AND

Section "3.4.3 Ensure /etc/hosts.deny is configured (Scored)".

Multiple hardening tasks were completed including the addition of /etc/hosts.allow and /etc/hosts.deny.

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Symptoms

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