CentOS - Jan 2017 - Reliable way of having both LAN and WIFI on headless box

On Fri, Jan 13, 2017 at 12:33 PM, Gary Stainburn <gary at ringways.co.uk>
wrote:
>
>
> Also, it was suggested that I use nmcli in a cronjob to re-activate it if
> it
> drops.  I can check to see if it's still active by 'grep'ing
the IP
> address,
> but I don't know the nmcli to re-activate an existing WIFI connection.
>
> Can anyone help here too, just in case I can't fix the real problem

I have a wireless connection named "AndroidAP-notepro"

So I can run

# nmcli con show --active | grep AndroidAP-notepro
AndroidAP-notepro  62d0fc1f-91b8-4c07-baf0-323cf1c108d1  802-11-wireless
 wlp3s0
#

You can check exit code and number of lines.
If number of lines is 0, it means the connection is not active and you can
try to activate it and get exit code of the command

# nmcli con up AndroidAP-notepro

Also, it could be useful to know what value you have for
"connection.autoconnect" for this connection.
If it is yes, in theory it should automatically reactivate when it returns
available.

In my case my AndroidAP-notepro connection is to be manually activated and
in fact I have

# nmcli con show AndroidAP-notepro | grep connection.autoconnect:
connection.autoconnect:                 no
#

In case you also have autoconnect set to no, If you don't have a gui you
should be able to set it up with

# nmcli con mod AndroidAP-notepro connection.autoconnect yes

HIH,
Gianluca

On Friday 13 January 2017 12:40:33 Gianluca Cecchi
wrote:
> On Fri, Jan 13, 2017 at 12:33 PM, Gary Stainburn <gary at
ringways.co.uk>
>
> wrote:
> > Also, it was suggested that I use nmcli in a cronjob to re-activate it
if
> > it
> > drops.  I can check to see if it's still active by
'grep'ing the IP
> > address,
> > but I don't know the nmcli to re-activate an existing WIFI
connection.
> >
> > Can anyone help here too, just in case I can't fix the real
problem
>
> I have a wireless connection named "AndroidAP-notepro"
>
> So I can run
>
> # nmcli con show --active | grep AndroidAP-notepro
> AndroidAP-notepro  62d0fc1f-91b8-4c07-baf0-323cf1c108d1  802-11-wireless
>  wlp3s0
> #
>
> You can check exit code and number of lines.
> If number of lines is 0, it means the connection is not active and you can
> try to activate it and get exit code of the command
>
> # nmcli con up AndroidAP-notepro
>
> Also, it could be useful to know what value you have for
> "connection.autoconnect" for this connection.
> If it is yes, in theory it should automatically reactivate when it returns
> available.
>
> In my case my AndroidAP-notepro connection is to be manually activated and
> in fact I have
>
> # nmcli con show AndroidAP-notepro | grep connection.autoconnect:
> connection.autoconnect:                 no
> #
>
> In case you also have autoconnect set to no, If you don't have a gui
you
> should be able to set it up with
>
> # nmcli con mod AndroidAP-notepro connection.autoconnect yes
>
> HIH,
> Gianluca
Hi Gianluca

Thanks for this.  I will put this into a cron job to bring the link back up if 
it drops. However, as you can see it shouldn't ne needed.  One more reason I
hate NetworkManager

[root at lcomp2 ~]# nmcli con show RW-WIFI |grep connection.autoconnect
connection.autoconnect:                 yes
connection.autoconnect-priority:        0
connection.autoconnect-slaves:          -1 (default)
[root at lcomp2 ~]# 


Gary

You could say the same thing about  computers in general:
I hate them, they automated many tasks in life and took many jobs out of the
market!.

Eliezer

----
Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: eliezer at ngtech.co.il


-----Original Message-----
From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Gary Stainburn
Sent: Monday, January 16, 2017 11:34 AM
To: centos at centos.org
Subject: Re: [CentOS] Reliable way of having both LAN and WIFI on headless
box

On Friday 13 January 2017 12:40:33 Gianluca Cecchi
wrote:
> On Fri, Jan 13, 2017 at 12:33 PM, Gary Stainburn <gary at
ringways.co.uk>
>
> wrote:
> > Also, it was suggested that I use nmcli in a cronjob to re-activate 
> > it if it drops.  I can check to see if it's still active by 
> > 'grep'ing the IP address, but I don't know the nmcli to
re-activate
> > an existing WIFI connection.
> >
> > Can anyone help here too, just in case I can't fix the real
problem
>
> I have a wireless connection named "AndroidAP-notepro"
>
> So I can run
>
> # nmcli con show --active | grep AndroidAP-notepro AndroidAP-notepro  
> 62d0fc1f-91b8-4c07-baf0-323cf1c108d1  802-11-wireless
>  wlp3s0
> #
>
> You can check exit code and number of lines.
> If number of lines is 0, it means the connection is not active and you 
> can try to activate it and get exit code of the command
>
> # nmcli con up AndroidAP-notepro
>
> Also, it could be useful to know what value you have for 
> "connection.autoconnect" for this connection.
> If it is yes, in theory it should automatically reactivate when it 
> returns available.
>
> In my case my AndroidAP-notepro connection is to be manually activated 
> and in fact I have
>
> # nmcli con show AndroidAP-notepro | grep connection.autoconnect:
> connection.autoconnect:                 no
> #
>
> In case you also have autoconnect set to no, If you don't have a gui 
> you should be able to set it up with
>
> # nmcli con mod AndroidAP-notepro connection.autoconnect yes
>
> HIH,
> Gianluca
Hi Gianluca

Thanks for this.  I will put this into a cron job to bring the link back up
if it drops. However, as you can see it shouldn't ne needed.  One more
reason I hate NetworkManager

[root at lcomp2 ~]# nmcli con show RW-WIFI |grep connection.autoconnect
connection.autoconnect:                 yes
connection.autoconnect-priority:        0
connection.autoconnect-slaves:          -1 (default)
[root at lcomp2 ~]# 


Gary

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