Re: upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-25 Thread Aki Tuomi
ssl_dh=: > On Fri, 22 Jun 2018, Joseph Tam wrote: > >> However, recent advances make this condition obsolete [*] and not >> really safer, so a much faster way to generate a DH key is >> >> openssl dhparam -dsaparam -out dh.pem 4096 >> >> DH generation is a one time operation, so if you're

Re: upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-25 Thread tai74
Thanks Joseph, Aki, but something missing from upgrade document, where does the dh param file go? I located ssl-parameters.dat so I will put it there. Quoting Joseph Tam : On Fri, 22 Jun 2018, Joseph Tam wrote: However, recent advances make this condition obsolete [*] and not really

Re: upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-22 Thread Joseph Tam
On Fri, 22 Jun 2018, Joseph Tam wrote: However, recent advances make this condition obsolete [*] and not really safer, so a much faster way to generate a DH key is openssl dhparam -dsaparam -out dh.pem 4096 DH generation is a one time operation, so if you're paranoid and you've got

Re: upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-22 Thread Joseph Tam
On Fri, 22 Jun 2018, Aki Tuomi wrote: Do I need to make a fresh dh.pem? The upgrade doc tells how to convert ssl-parameters.dat but how to make a new one? ... or you can make a fresh one using openssl gendh 4096 > dh.pem This also works openssl dhparam -out dh.pem 4096 Note that

Re: upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-22 Thread Aki Tuomi
> On 22 June 2018 at 10:18 ta...@vfemail.net wrote: > > > > hi sorry if question was asked already. Was reading > https://wiki2.dovecot.org/Upgrading/2.3 > > first I'm confused on diffie hellman parameters file. I never set up > ssl-parameters.dat before (should i have? do I have one that

upgrade 2.2 to 2.3, diffie-hellman, ssl_min_protocol

2018-06-22 Thread tai74
hi sorry if question was asked already. Was reading https://wiki2.dovecot.org/Upgrading/2.3 first I'm confused on diffie hellman parameters file. I never set up ssl-parameters.dat before (should i have? do I have one that was automatically made for me by dovecot?) Do I need to make a