54 lines
1.3 KiB
YAML
54 lines
1.3 KiB
YAML
---
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- name: Reboot after panic
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sysctl:
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name: "{{ item.name }}"
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value: "{{ item.value }}"
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sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
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state: present
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reload: yes
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with_items:
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- { name: kernel.panic_on_oops, value: 1 }
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- { name: kernel.panic, value: 60 }
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when: evolinux_kernel_reboot_after_panic
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- name: Don't reboot after panic
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sysctl:
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name: "{{ item }}"
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sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
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state: absent
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reload: yes
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with_items:
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- kernel.panic_on_oops
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- kernel.panic
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when: not evolinux_kernel_reboot_after_panic
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- name: Disable net.ipv4.tcp_timestamps
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sysctl:
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name: net.ipv4.tcp_timestamps
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value: 0
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sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
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state: present
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reload: yes
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when: evolinux_kernel_disable_tcp_timestamps
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- name: Reduce the swapiness
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sysctl:
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name: vm.swappiness
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value: 20
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sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
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state: present
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reload: yes
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when: evolinux_kernel_reduce_swapiness
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- name: Patch for TCP stack vulnerability CVE-2016-5696
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sysctl:
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name: net.ipv4.tcp_challenge_ack_limit
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value: 1073741823
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sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
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state: present
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reload: yes
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when: evolinux_kernel_cve20165696
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- meta: flush_handlers
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