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External #768

Updated by Pierre-Louis Bonicoli over 2 years ago

On Toushirou, the current link provided by Acontios will end in one week (2022-04-14). 

 According to the checks made by Acontios about the used bandwith, the Nerim link can be used instead of the current one. 

 A L2TP tunnel will be required in order to keep/use our current IP. 

 The requirements: 
 # 1. 🔲 Pilou: If any issue occurs during the migration, a physical access will be required: ask Chojin about it (Pilou will be available 2022-04-11 or 2022-04-13). 
 # 2. 🔲 Duck: contact Acontios to provide the L2TP setup 

 The required tasks in order to update the configuration: 
 # 3. 🔲 ensure we are able to connect through the Nerim link 
 # 4. 🔲 remove any reference to the hivane network interface 
 <pre># <pre> 
 # rgrep -l eth-wan-hivane /etc/ 
 /etc/network/interfaces.d/hivane-link 
 /etc/network/multihoming 
 /etc/default/grub 
 /etc/systemd/network/10_eth-wan-hivane.link 
 /etc/mp-admin/firewalling 
 /etc/sysctl.d/90-disable-accept_ra.conf</pre> /etc/sysctl.d/90-disable-accept_ra.conf 
 Notes that the following services aren't listening on nerim IP: 
     - @slapd@ (TCP ports 389 and 636) 
     - @apache2@ (TCP ports 80 and 443) 
     - @proftpd@ (TCP port 21) </pre> 
 # 5. 🔲 stop the multihoming setup 
 # 6. 🔲 run the L2TP service 
 # 7. 🔲 start the multihoming setup 

 ✅ @poulet@: I have checked that SSH is listening on the IP provided by Nerim (@213.215.11.165@)

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