Re: Machine keeps dying with OpenConnect

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Hi, 

By dying I mean the machine completely locks up and is unresponsive to pings or new SSH connections. 

There version I believe is the latest on Gitlab; I don’t know why he hasn’t been installing the version from the Debian repositories. 

I am unfortunately unable to check the system logs currently as I can’t access the system. 

Many Thanks,

Dean

> On 25 Mar 2020, at 19:24, Daniel Lenski <dlenski@xxxxxxxxx> wrote:
> 
> On Wed, Mar 25, 2020 at 6:35 AM Chester, Dean <D.Chester.1@xxxxxxxxxxxxx> wrote:
>> 
>> Hi,
>> 
>> I have a user who uses OpenConnect to connect to a VPN tunnel from within a network. The end point he is tunnelling to is a juniper network. The user is a sudoer.
>> 
>> The user has been installing OpenConnect on Debian 10 from source; this has now killed the box which we don’t have physical access to currently due to ongoing global issues.
>> 
> 
> What does “dying” mean? System completely hangs? What version of
> openconnect are you building and running, exactly? (`openconnect
> --version`)
> 
>> When he was running ./configure —prefix=<SOME_PATH> the machine died. Does this script do anything trying to enumerate a new interface?
> 
> No. OpenConnect does, of course, try to create new tunnel interfaces,
> unless you tell it to use an existing tunnel interface with `-i` (see
> https://www.infradead.org/openconnect/nonroot.html).
> 
> OpenConnect *does not* create new interfaces as part of the
> configuration/compliation process… and even if it tried, it would fail
> unless running as root.
> 
>> 
>> This is a new box we configured a few months ago for this specific reason. After he’s done with his tunnel we seem to be unable to access the machine again via SSH.
>> 
>> What might be killing the connection and causing us to press the reset button on the machine?
> 
> What do the system logs tell you?
> 
> Dan

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