Ok, thanks Akshay. -- Dave Page Blog: http://pgsnake.blogspot.com Twitter: @pgsnake
EnterpriseDB UK:http://www.enterprisedb.com The Enterprise PostgreSQL Company > On 30 Nov 2015, at 12:57, Akshay Joshi <akshay.jo...@enterprisedb.com> wrote: > > Hi Dave > >> On Mon, Nov 30, 2015 at 10:41 AM, Akshay Joshi >> <akshay.jo...@enterprisedb.com> wrote: >> Hi Dave >> >>> On Fri, Nov 27, 2015 at 3:01 PM, Dave Page <dp...@pgadmin.org> wrote: >>> On Fri, Nov 27, 2015 at 9:23 AM, Sven <svoop_6cedifw...@delirium.ch> wrote: >>> >> The key exchange methods offered when opening an SSH tunnel are all >>> >> SHA1 and therefore too weak: >>> >> >>> >> [sshd] fatal: Unable to negotiate with xxx.xxx.xxx.xxx: no matching >>> >> key exchange method found. Their offer: >>> >> diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1, >>> >> diffie-hellman-group1-sha1 [preauth] >>> > >>> > Any news on this? If there's no easy way to add safer kexes, I suggest >>> > you disable the SSH feature altogether. SHA1 is dead and IMO nobody >>> > should trust a connection established with SHA1 kexes in order to talk >>> > to databases. >>> >>> Akshay, you know that code best of all. How do we enable safer kexes? >> >> Today I'll look into it on priority and update accordingly. > > I have found that "diffie-hellman-group-exchange-sha256" support has > been added to the libssh2 code on September 24, it's not released yet. Please > check https://github.com/libssh2/libssh2/pull/48 . Today I have tried to > update the libssh2, but facing some compilation issues which needs to be > fixed. I am working on it and then check do we need to change our logic or > libssh2 will automatically used "diffie-hellman-group-exchange-sha256". > >>> >>> -- >>> Dave Page >>> Blog: http://pgsnake.blogspot.com >>> Twitter: @pgsnake >>> >>> EnterpriseDB UK: http://www.enterprisedb.com >>> The Enterprise PostgreSQL Company >> >> >> >> -- >> Akshay Joshi >> Principal Software Engineer >> >> >> >> Phone: +91 20-3058-9517 >> Mobile: +91 976-788-8246 > > > > -- > Akshay Joshi > Principal Software Engineer > > > > Phone: +91 20-3058-9517 > Mobile: +91 976-788-8246
