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26 lines
1.6 KiB
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26 lines
1.6 KiB
Markdown
# Ansible Roles
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## Required roles
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* **Common**
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* Installs several required packages and software updates, then reboots if necessary
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* Configures network interfaces, and enables packet forwarding on them
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* **VPN**
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* Installs [strongSwan](https://www.strongswan.org/), enables AppArmor, limits CPU and memory access, and drops user privileges
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* Builds a Certificate Authority (CA) with [easy-rsa-ipsec](https://github.com/ValdikSS/easy-rsa-ipsec) and creates one client certificate per user
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* Bundles the appropriate certificates into Apple mobileconfig profiles for each user
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* Configures IPtables to block traffic that might pose a risk to VPN users, such as [SMB/CIFS](https://medium.com/@ValdikSS/deanonymizing-windows-users-and-capturing-microsoft-and-vpn-accounts-f7e53fe73834)
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## Optional roles
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* **Security Enhancements**
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* Enables [unattended-upgrades](https://help.ubuntu.com/community/AutomaticSecurityUpdates) to ensure available patches are always applied
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* Modify features like core dumps, kernel parameters, and SUID binaries to limit possible attacks
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* Enhances SSH with modern ciphers and seccomp, and restricts access to old or unwanted features like X11 forwarding and SFTP
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* **DNS-based Adblocking**
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* Install the [dnsmasq](http://www.thekelleys.org.uk/dnsmasq/doc.html) local resolver with a blacklist for advertising domains
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* Constrains dnsmasq with AppArmor and cgroups CPU and memory limitations
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* **SSH Tunneling**
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* Adds a restricted `algo` group with no shell access and limited SSH forwarding options
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* Creates one limited, local account per user and an SSH public key for each
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