> I don't know of any security problem in IRIX 4.X portmapper, perhaps in 5.2? The IRIX 4.X portmapper is vulnerable, even with the /usr/etc/portmap.options stuff turned on. Haven't check IRIX 5.X yet, but will soon. So here are the options so far: Workaround -- all OSes: stop machines exporting to themselves. Fixes: SunOS 4.1.X: Wietse's portmapper Ultrix: Wietse's portmapper Solaris: Wietse's rpcbind IRIX 4.X: ??? IRIX 5.X: ??? AIX: ??? Please email me with any additions to this list, or any porting info for getting Wietse's programs to compile under different OSes. I will post a summary. ...Eric