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Netplan in UBUNTU SERVER 18.04. How to restart network fully?


/etc/network/interfaces and ifup/ifdown still present. Why?How to configure IPVS loopback address with netplan in Ubuntu 18.04?How can I disable LLMNR in Netplan?Ubuntu server 18.04 LTS as WIFI access pointDoes apt upgrade trigger netplan apply in 18.04?






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Ubuntu 18.04 LTS use netplan and systemd-networkd as default network config tool.



In earlier release, we can use service networking restart, or just ifdown & ifup to fully restart the network or an interface.



In 18.04, netplan tells just change the yaml file and use netplan apply .



When I change a bonding interface, just like hash policy, mtu, the netplan apply command doesn't make the new configuration effective.



Oh by the way, netplan shows render is networkd.



I search the whole internet to find a way to restart the network, but failed.



What I can do is reboot the server. This will make the new mtu and hash policy effective.



But just changing a network parameter, why i must reboot the whole server! Even a unstable windows server is not like this!



So, anyone can tell me what should I do?



List of methods I've already tried and failed:




  • systemctl restart systemd-networkd : restarted but mtu and policy not change









share|improve this question

































    1


















    Ubuntu 18.04 LTS use netplan and systemd-networkd as default network config tool.



    In earlier release, we can use service networking restart, or just ifdown & ifup to fully restart the network or an interface.



    In 18.04, netplan tells just change the yaml file and use netplan apply .



    When I change a bonding interface, just like hash policy, mtu, the netplan apply command doesn't make the new configuration effective.



    Oh by the way, netplan shows render is networkd.



    I search the whole internet to find a way to restart the network, but failed.



    What I can do is reboot the server. This will make the new mtu and hash policy effective.



    But just changing a network parameter, why i must reboot the whole server! Even a unstable windows server is not like this!



    So, anyone can tell me what should I do?



    List of methods I've already tried and failed:




    • systemctl restart systemd-networkd : restarted but mtu and policy not change









    share|improve this question





























      1













      1









      1








      Ubuntu 18.04 LTS use netplan and systemd-networkd as default network config tool.



      In earlier release, we can use service networking restart, or just ifdown & ifup to fully restart the network or an interface.



      In 18.04, netplan tells just change the yaml file and use netplan apply .



      When I change a bonding interface, just like hash policy, mtu, the netplan apply command doesn't make the new configuration effective.



      Oh by the way, netplan shows render is networkd.



      I search the whole internet to find a way to restart the network, but failed.



      What I can do is reboot the server. This will make the new mtu and hash policy effective.



      But just changing a network parameter, why i must reboot the whole server! Even a unstable windows server is not like this!



      So, anyone can tell me what should I do?



      List of methods I've already tried and failed:




      • systemctl restart systemd-networkd : restarted but mtu and policy not change









      share|improve this question
















      Ubuntu 18.04 LTS use netplan and systemd-networkd as default network config tool.



      In earlier release, we can use service networking restart, or just ifdown & ifup to fully restart the network or an interface.



      In 18.04, netplan tells just change the yaml file and use netplan apply .



      When I change a bonding interface, just like hash policy, mtu, the netplan apply command doesn't make the new configuration effective.



      Oh by the way, netplan shows render is networkd.



      I search the whole internet to find a way to restart the network, but failed.



      What I can do is reboot the server. This will make the new mtu and hash policy effective.



      But just changing a network parameter, why i must reboot the whole server! Even a unstable windows server is not like this!



      So, anyone can tell me what should I do?



      List of methods I've already tried and failed:




      • systemctl restart systemd-networkd : restarted but mtu and policy not change






      networking netplan






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Oct 2 at 17:45







      TerryR01

















      asked Oct 2 at 17:36









      TerryR01TerryR01

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