For most of our network internal services (firewall, NAT, VPN, Radius. etc..), we use Zeroshell. Zeroshell is a small open-source Linux distribution for servers and embedded systems which aims to provide network services. Its administration relies on a web-based graphical interface; no shell is needed to administer and configure it. Zeroshell is available as Live CD and CompactFlash images, and VMware virtual machines.

Many thanks to Fulvio Ricciardi the Zeroshell creator and maintainer.

    output file
0                       metal nuclear spin
2.675199D+8             gammaI of investigated particle
.5                      electron spin
1                       1=t1 2=t2 calculation to be performed
3 9 1                   field range in Log(Hz) (1) or Tesla (2)
10                      number of points
1                       sets of data
310.                    temperature

0 20e-9 0 1           taue(1),taus0(1)if tauv=/0[s],or delta(2)[cm**(-1)]
                     or Neel correlation time

0 1.e-6 0             taur rotational correlation time [s]
0 4.e-12 0            tauv correlation time of electron relaxation [s]
0 0.                  D axial component of ZFS [cm**(-1)]
0 0e-8                E rhombic component of ZFS [cm**(-1)]
0 0                   s4 constant of higher order term [cm**(-1)]
0 2.0023D+0           gx G-tensor components
0 2.0023D+0           gy
0 2.0023D+0           gz
0 .00                 Ax Hyperfine coupling constants [cm**(-1)]
0 .00                 Ay [cm**(-1)]
0 0.0                 Az [cm**(-1)]

0 45. 2 0.3508 0.2029 2nd: d distance of closest approach [Angstroem],
                             or radius of the crystal
                      3rd: 1=outer-sphere paramagn. equation
                           2=superparamagnet routine: complete calculat.
                           3=superparamagnet routine: hempiric equation
                      4th and 5th: P and Q of the hempiric equation

0 3.4e-5 40. 1.           2nd: Ddiff diffusion coefficient [cm**2/s]
                          3rd: magnetization at saturation
                          4th: anisotropic energy (in complet calc.)
                               or ni_0 (in the hempiric equation)

0 0.001               concentration [M]
1                     number of types of water
0 0 0                 taum [s]
0 0                   mol.frac. (number of interacting water protons)
0 0             rk water proton - paramagnetic center distance[Angstroem]
0 0.                 a/h constant of contact interaction [MHz]
0 0                   theta [degree]
0 0.                 phi [degree]
0                     number experimental points
1.e-5                 tolerence of fitting
.05                   step in fitting procedure
.1148E-02 .1032E+02
.1047E-01 .9974E+01
.1096E+00 .9828E+01
.1000E+01 .6622E+01
.1047E+02 .1162E+02
.1096E+03 .4854E+01
.1000E+00 .9107E+01
.1000E+01 .7107E+01
.1000E+02 .1160E+02
.1000E+03 .5223E+01