Hi, it was my mistake. I uncommnet debug in wbinfo_group.pl. Also it wasn't clear enough structure of requests for this perl script. I ask: mylan\\test test (domain\\user group) and i have very pretty reply with OK in the end. Thanks to everyone Nikolay hno@xxxxxxxxxxxxxxx@inet 08.02.2005 10:13 To nikolay.nenchev@xxxxxxxxxxxxxxxxxxxxxxx cc hno@xxxxxxxxxxxxxxx Subject Re: [squid-users] nt domain ntlm group authentication problem? On Tue, 8 Feb 2005 nikolay.nenchev@xxxxxxxxxxxxxxxxxxxxxxx wrote: > So i don't know from where is this problem. And as I wrote ntlm nt group > authentication is working but still receiving this mistake with > wbinfo_group.pl: > >> mylan\test >> Use of uninitialized value in concatenation (.) or string at >> /usr/local/squid/libexec/wbinfo_group.pl line 35, <STDIN> line 1. Right. You didn't give which group it should match against. mylan\test InternetUsers or whatever the group you want to match against is named. Regards Henrik