Re: FreeTDS: MSSQL2005, SSL, Encryption, TDS v8 does not work

Il giorno ven, 07/08/2009 alle 14.41 +0200, Mittel, Alexander ha
scritto:
> *** UPDATE (see >>>>> update) ***
> 
> Hi,
> 
> thanks for help!
> With ALL Your hints/suggestions now I could establish a encrypted connection!
> First installing all needed libs for gnutls and gnutls itself, then
> ./configure --prefix=/usr/local/freetds --with-gnutls --with-tdsver=8.0 --enable-msdblib
> >>>>>update 1)
>         option "--with-unixodbc" and unixodbc/isql works
> 

unixodbc should be detected by configure if unixodbc is installed in
default directories... could you post configure output and config.log
without --with-unixodbc ??

> To clear "undefined reference to `gnutls_........`" while make/linking I had to
> [inconveniently] manually edit (for reasons of precaution all) Makefile's:
> NETWORK_LIBS = -lgnutls -lgnutlsxx -lcrypto
> LDFLAGS = -L/usr/lib -L/usr/local/lib
> 
> >>>>>update 2)
>         gnutls does not build/use "libgnutls-config" anymore, it must be replaced by "pkg-config gnutls"
>         (see NEWS within gnutls-source-directory).
>         So I changed freetds "configure" at line 23135 (approx) and then the right Makefile's are created.
>            ...
>            if test "$with_gnutls" = "yes"; then
>                 ...
>           CPPFLAGS="$CPPFLAGS `libgnutls-config --cflags`"
>           NETWORK_LIBS="$NETWORK_LIBS `libgnutls-config --libs`"
>                 ...
>            ...
> 

I wrote a patch to fix this issue. Now if pkg-config gnutls works it's
used instead of libgnutls-config

> 
> >>>>>update 3)
>         sometimes there are errors (freetds/tsql and unixodbc/isql), then the connection is still active
>         but every next sql-command will be result in one of these errors:
> 
>                 Msg 20004, Level 9, State -1, Server OpenClient, Line -1
>                 Read from the server failed
> 
>                 Msg 20006, Level 9, State -1, Server OpenClient, Line -1
>                 Write to the server failed
> 

Mmmm.... probably server close the connection. Which queries cause these
problems ??

> 
> Result:
> /usr/local/freetds/bin/tsql -C
> Compile-time settings (established with the "configure" script)
>                             Version: freetds v0.83.dev.20090725
>              freetds.conf directory: /usr/local/freetds/etc
>      MS db-lib source compatibility: yes
>         Sybase binary compatibility: no
>                       Thread safety: yes
>                       iconv library: yes
>                         TDS version: 8.0
>                               iODBC: no
>                            unixodbc: no / yes
> Connect to SQLServer and check encryption with:
> SELECT session_id, net_transport, encrypt_option, auth_scheme FROM sys.dm_exec_connections
> 
> Mfg Alexander
> 

Regards
  Frediano Ziglio