Hi team, Sorry I forgot a little more information. We are able to connect to the sharepoint server through openssl command(*openssl s_client connect server:port*). The request made via the LWP module to the sharepoint-server is through *TLS-1.2* protocol.
*Perl version being used: perl-5.18.2* Thanks, N G Hemanth Kumar On Tue, Mar 5, 2024 at 10:29 AM N G Hemanth Kumar < hemanthkumar5...@gmail.com> wrote: > Hi team, > > Hope you are doing well. We have NTLM Sharepoint application configured in > our application. The library we are using to support the authentication > operation/feature is *LWP::Authen::Ntlm and Net::SSL*. The authentication > flow is similar to what is posted in the page’s > <https://metacpan.org/pod/LWP::Authen::Ntlm> synopsis. It was working > fine with apache2-2.4.51(without tls1.3) and *openssl-1.0.2p*. > > But recently we upgraded the apache2 library to support tls1.3(with > *openssl-1.1.1d*). After this upgrade, the app is not able to make a > socket connection to the sharepoint server. When debugged further - it > wasn't able to create an ssl-socket using *Crypt::SSLeay::Conn->new *in > *Net::SSL(v2.85)* module. > > Could you please let us know what might be the possible reasons for this > issue and what are the possible ways to resolve this issue? > > Apache2 mod-perl : *apache2-mod_perl-2.0.8-13.5.1.x86_64* > LWP based modules : > *perl-libwww-perl-6.05, perl-LWP-MediaTypes-6.02, > perl-LWP-Protocol-https-6.04, perl-IO-Socket-SSL-2.052-4.3.1, > perl-Crypt-SSLeay-0.64-3.57, perl-NTLM-1.09-1.1, perl-Net-HTTP-6.06-5.2, > perl-Net-SSLeay-1.64-3.2.* > > > Thanks, > N G Hemanth Kumar >