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53 lines
2 KiB
Markdown
53 lines
2 KiB
Markdown
---
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title: Setting up IPv6
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template: docs
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taxonomy:
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category: docs
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routes:
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default: '/ipv6'
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---
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IPv6 may work out of the box in many cases. But in some cases or some specific provider, you may need to tweak things manually to enable IPv6.
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## With a VPS from OVH
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OVH gives one IPv4 address and one IPv6 address for VPS but by default, only IPv4 is OK.
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The OVH's documentation is here : <https://docs.ovh.com/gb/en/vps/configuring-ipv6/>
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### Configure the DNS server
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Here : <https://yunohost.org/#/dns_subdomains>
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### Configure the server
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On the OVH panel, you will copy 3 elements:
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- the IPv6 address
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- the IPv6 gateway address
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- the IPv6 prefix. On OVH's VPS SSD, prefixes are `/128` because you have only *one* IPv6 address.
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On your VPS, create a backup of the network configuration with : `cp /etc/network/interfaces ~/interfaces` in home directory.
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Then, you can edit the configuration file (`/etc/network/interfaces`) with the following.
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! In this example, it is assumed that your network interface is `eth0`. If it's different (check with `ip a`) you need to adapt the example below.
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```text
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iface eth0 inet6 static
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address <your IPv6 address>
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netmask <your IPv6 prefix>
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post-up /sbin/ip -6 route add <the IPv6 gateway> dev eth0
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post-up /sbin/ip -6 route add default via <the IPv6 gateway> dev eth0
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pre-down /sbin/ip -6 route del default via <the IPv6 gateway> dev eth0
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pre-down /sbin/ip -6 route del <the IPv6 gateway> dev eth0
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```
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Now, save the file and restart the network service with : `service networking restart`. (TODO : ideally we should find a way to validate the content of the configuration, otherwise it could fuck up the network stack and get disconnected from the VPS ?)
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Check your configuration with these commands :
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- `ip a` to display network interfaces and addresses
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- `hostname -I` to display the system IP addresses
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- try to ping an IPv6 server (for example you can use `ping6 ip6.yunohost.org`)
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- try to ping your server from your PC (assuming your PC has IPv6 enabled)
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If it's ok, it's ok !
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