Server side:  nntp -i  (or make xinetd conf file).
              Restrict through wrappers or firewall!!!

Client side:  nttcp -T destination.addr

OPTIONS:  ("-x SIZE" option does not work!!!)
    -r:  client-Receive direction for data (defaults to send direction)
    -T:  print title
    -u:  UDP instead of TCP
    -l BUFSIZ:   buffer size (in B) [dflt 2048]
    -n NUMBUFS:  now many buffers (in B) [dflt 4096]
    (writes/reads (BUFSIZE * NUMBUFS) B)

onella->sif
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608   96.46    0.02      0.6957   2796.6688    2048     21.23   85347.6
1  8388608   97.24    0.10      0.6901    684.7843    5090     52.34   51938.8

idun->sif
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608  890.96    0.01      0.0753   5163.0146    2048      2.30  157562.7
1  8388608  901.21    0.52      0.0745    129.8044    5731      6.36   11085.1

w/  Exim stopped and exim -q processes killed
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608  864.77    0.02      0.0776   3355.9466    2048      2.37  102415.4
1  8388608  872.49    0.09      0.0769    780.3356    5334      6.11   62023.3

w/ 207.69.200.0/24 rejected
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608  851.74    0.01      0.0788   5593.3376    2048      2.40  170695.1
1  8388608  858.72    0.29      0.0781    230.6147    5628      6.55   19340.2

FROM tiamat w/ firewalling off and ip forwarding off, w/ 1024 buffers (1/2 normal)
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  4194304  413.47    0.07      0.0812    479.3490    1024      2.48   14628.6
1  4194304  420.50    0.02      0.0798   1597.8301    2888      6.87  137523.8