To my knowledge, the HPN-SSH patches have not yet been rolled into the OpenSSH tree. For a local LAN, the "-o NoneSwitch=yes" option to turn off encryption will improve network performance by reducing CPU load, but you could also use the "-c none" option in standard OpenSSH. Note - The standard "-c none" option is NOT the same has HPN-SSH's NoneSwitch option. Only consider "-c none" on a "safe" network. I am not sure if the "none" cipher is even available in some Linux distributions. However, for high-speed, high-latency connection, HPN-SSH rocks. With the proper tuning of TCP options, our cross-continent gigabit connection runs at 15MByte/s, as compared to ~700kByte/s before HPN-SSH. On Nov 13, 2007 12:37 PM, Mathew Brown <mathewbrown@xxxxxxxxxxx> wrote: > Hi, > I just came across the High Performance SSH/SCP - (HPN-SSH) - > http://www.psc.edu/networking/projects/hpn-ssh/ - and was wondering if > the HPN patches had been ported to mailine OpenSSH. If not, what > suggestions are available for improving the speed of SFTP in local LAN > environments? Thanks for your help. > -- > Mathew Brown > mathewbrown@xxxxxxxxxxx > > -- > http://www.fastmail.fm - Does exactly what it says on the tin > >