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Baseline Setup

Ansible role to setup OS baseline on RHEL based systems.

  1. Set Hostname
  2. Set Timezone
  3. configure date and time
  4. SELinux
  5. Password Policy
  6. Harden SSH
  7. Configure SNMP
  8. Logging

Role Variables

Basic Settings

hostname: jenkins-server
timezone: Asia/Dubai
ntp_server: 1.ae.pool.ntp.org
selinux_state: enforcing

Password Policy

PASS_MAX_DAYS: 60
PASS_MIN_DAYS: 1
PASS_MIN_LEN: 12
PASS_WARN_AGE: 7
minlen: 12
minclass: 4

Number of days to disable inactive account after password expiry

disable_inactive_account: 60

PAM Settings

account_lockout_max_try: 5
unlock_time: 900
password_remember: 5

SNMP Settings

enable_snmp: true
monitoring_host: 192.168.122.1
snmp_string: My$cR3t$tr!ng

SSH Settings

Port: 22
MaxAuthTries: 4
IgnoreRhosts: 'yes'
HostbasedAuthentication: 'no'
PermitRootLogin: 'yes'
PermitEmptyPasswords: 'no'
ClientAliveInterval: 300
ClientAliveCountMax: 0
LoginGraceTime: 1m
Banner: /etc/issue.net
AllowTcpForwarding: 'no'
maxstartups: 10:30:60
maxsessions: 4

MTA

enable_mta: true
smtp_relay_host: smtp.domain.com

Aliases

admin_mail_id: user@domain.com

License

MIT

Author Information

Muhammed Iqbal iquzart@hotmail.com