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- hosts: vms
become: true
roles:
- oefenweb.sysctl
vars:
sysctl_settings:
- name: net.ipv4.conf.default.accept_source_route
value: 0
- name: net.ipv4.tcp_syncookies
value: 1
- name: net.ipv4.tcp_synack_retries
value: 5
- name: net.ipv4.conf.all.send_redirects
value: 0
- name: net.ipv4.conf.default.send_redirects
value: 0
- name: net.ipv4.conf.all.accept_source_route
value: 0
- name: net.ipv4.conf.all.accept_redirects
value: 0
- name: net.ipv4.conf.all.secure_redirects
value: 0
- name: net.ipv4.conf.default.accept_source_route
value: 0
- name: net.ipv4.conf.default.accept_redirects
value: 0
- name: net.ipv4.conf.default.secure_redirects
value: 0
- name: net.ipv4.icmp_echo_ignore_broadcasts
value: 1
- name: net.ipv4.tcp_syncookies
value: 1
- name: net.ipv4.conf.all.rp_filter
value: 1
- name: net.ipv4.conf.default.rp_filter
value: 1
- name: net.ipv6.conf.default.router_solicitations
value: 0
- name: net.ipv6.conf.default.accept_ra_rtr_pref
value: 0
- name: net.ipv6.conf.default.accept_ra_pinfo
value: 0
- name: net.ipv6.conf.default.accept_ra_defrtr
value: 0
- name: net.ipv6.conf.default.autoconf
value: 0
- name: net.ipv6.conf.default.dad_transmits
value: 0
- name: net.ipv6.conf.default.max_addresses
value: 1
- name: net.ipv4.tcp_timestamps
value: 0
- name: net.ipv4.ip_local_port_range
value: "2000 65000"
- name: net.ipv4.tcp_rfc1337
value: 1
|
