Re: ssl: unsafe legacy renegotiation

[Jan-Henrik Haukeland]

Google the error and solution. Either update SSL on the cable modem “server” if 
you can or modify Monit (the client) yourself. 


> On 9 Feb 2023, at 14:29, sashk via This is the general mailing list for monit 
> <monit-general@nongnu.org> wrote:
> 
> Hello,
> 
> I have a very old device, which I cannot replace, but would like to monitor. 
> It uses TLSv1 for SSL and I’d like to check that it is online by querying its 
> https port. I have following check:
> 
> check host cable_modem with address 192.168.1.1
>     if failed port 443 protocol https status = 200 with ssl options {version: 
> TLSV1, verify: disable} for 2 cycles then alert
> 
> But when monit checks, it reports following error:
> 
> failed protocol test [HTTP] at [192.168.1.1]:443 [TCP/IP TLS] -- SSL 
> connection error: error:0A000152:SSL routines::unsafe legacy renegotiation 
> disabled
> 
> Is there a way to allow unsafe legacy renegotiation only for this particular 
> check? It seems re-configuring OpenSSL it is possible to do systemwide, but I 
> would like to avoid doing so.
> 
> Thanks in advance