Hi David, First thank you for your quick answer ;) Do you know if there is a way to do such things (disable RSA-512 signin algo) without rcompiling the gnu-tls library? I found nothing for the moement. Best regards. Noel Le vendredi 22 septembre 2017 ? 14:39 +0200, David Raison a ?crit : > Hi Nikos, > > > On 22/09/17 02:38, Nikos Mavrogiannopoulos wrote: > > Without using debugging tools you most likely never find the > > culprit. From you previous logs, the client fails at signing with > > rsa-sha512. A long shot may be that there is a buffer overflow > > somewhere due to sha512. Have you tried eliminating this signing > > algorithm from server (or client)? > > Unfortunately I don't control the server (or I wouldn't be using > AnyConnect :P) but maybe No?l or I can try disabling RSA-SHA512 on > the > client side and see if that changes anything. > > Regards, > David >