First install smbmount that should be on smbfs package, for Debian use something like:
sudo apt-get install smbfs
To try and access, create a new mounting point and connect:
sudo mount -t smbfs -o username=<user>,workgroup=<domain> //winserver/share1 /share /share1
To make it permanent add this line to your /etc/fstab as root:
//winserver/share1 /share/share1 smbfs credentials=/home/user/credentials,uid=user,gid=user,dmask=700,fmask=700 0 0
In order to avoid having passwords on your fstab create a file /home/user/credentials like this:
username=<user>
password=<password>
workgroup=<domain>