On Tue 26 Nov 2019 at 03:51:24 (+0000), Long Wind wrote: > haven't i made it clear enough?
No, not really. You're not specific about what software you're using to run your networking interface. > i rewrite below: > > i often change wifi setting this way: > i open /etc/network/interfaces and change ssid and passwordthen save and > reboot to make /etc/network/interfaces to take effect > any command that i can use so that i needn't reboot? As you mention /etc/network/interfaces, perhaps you're using ifupdown to manage it. In which case, the sequence of commands to change settings is: # ifdown eth0 # edit /etc/network/interfaces # ifup eth0 (Substitute the name of your interface for eth0.) The mistake many people make is to edit /etc/network/interfaces *before* they down the network, which causes the ifdown command to fail. ifdown needs the old configuration in /etc/network/interfaces to down the network just as much as ifup needs the new configuration to restart it. > i've tried your command: > > > service network-manager restart service network-manager restartFailed to > restart network-manager.service: Unit network-manager.service failed to load: > No such file or directory > > On Tuesday, November 26, 2019, 11:12:21 AM GMT+8, Jonas Smedegaard > <jo...@jones.dk> wrote: > > Quoting Long Wind (2019-11-26 04:00:13) > > i often change wifi setting: ssid and passwordi edit > > /etc/network/interfaces and reboot to make it take effectany command > > that i can use so that i needn't reboot?Thanks! > > You don't tell what is the reason you need to reboot. > > If your wifi device driver crashes then possibly there is no other way > (with that device) than rebooting. But if it is Network Manager getting > confused then maybe try restart it: > > sudo service network-manager restart > > Or maybe install a newer linux kernel. > > But it really is shooting in the dark - please provide more info about > what fails. > > > - Jonas > > -- > * Jonas Smedegaard - idealist & Internet-arkitekt > * Tlf.: +45 40843136 Website: http://dr.jones.dk/ > > [x] quote me freely [ ] ask before reusing [ ] keep private Cheers, David.