| README.privsep (137015) | README.privsep (146998) |
|---|---|
| 1Privilege separation, or privsep, is method in OpenSSH by which 2operations that require root privilege are performed by a separate 3privileged monitor process. Its purpose is to prevent privilege 4escalation by containing corruption to an unprivileged process. 5More information is available at: 6 http://www.citi.umich.edu/u/provos/ssh/privsep.html 7 8Privilege separation is now enabled by default; see the --- 24 unchanged lines hidden (view full) --- 33privsep user and chroot directory: 34 35 --with-privsep-path=xxx Path for privilege separation chroot 36 --with-privsep-user=user Specify non-privileged user for privilege separation 37 38Privsep requires operating system support for file descriptor passing. 39Compression will be disabled on systems without a working mmap MAP_ANON. 40 | 1Privilege separation, or privsep, is method in OpenSSH by which 2operations that require root privilege are performed by a separate 3privileged monitor process. Its purpose is to prevent privilege 4escalation by containing corruption to an unprivileged process. 5More information is available at: 6 http://www.citi.umich.edu/u/provos/ssh/privsep.html 7 8Privilege separation is now enabled by default; see the --- 24 unchanged lines hidden (view full) --- 33privsep user and chroot directory: 34 35 --with-privsep-path=xxx Path for privilege separation chroot 36 --with-privsep-user=user Specify non-privileged user for privilege separation 37 38Privsep requires operating system support for file descriptor passing. 39Compression will be disabled on systems without a working mmap MAP_ANON. 40 |
| 41PAM-enabled OpenSSH is known to function with privsep on Linux. 42It does not function on HP-UX with a trusted system 43configuration. | 41PAM-enabled OpenSSH is known to function with privsep on AIX, HP-UX 42(including Trusted Mode), Linux and Solaris. |
| 44 45On Cygwin, Tru64 Unix, OpenServer, and Unicos only the pre-authentication 46part of privsep is supported. Post-authentication privsep is disabled 47automatically (so you won't see the additional process mentioned below). 48 49Note that for a normal interactive login with a shell, enabling privsep 50will require 1 additional process per login session. 51 --- 4 unchanged lines hidden (view full) --- 56 root 6917 1005 0 15:19:16 ? 0:00 sshd: stevesk [priv] 57 stevesk 6919 6917 0 15:19:17 ? 0:03 sshd: stevesk@2 58 stevesk 6921 6919 0 15:19:17 pts/2 0:00 -bash 59 60process 1005 is the sshd process listening for new connections. 61process 6917 is the privileged monitor process, 6919 is the user owned 62sshd process and 6921 is the shell process. 63 | 43 44On Cygwin, Tru64 Unix, OpenServer, and Unicos only the pre-authentication 45part of privsep is supported. Post-authentication privsep is disabled 46automatically (so you won't see the additional process mentioned below). 47 48Note that for a normal interactive login with a shell, enabling privsep 49will require 1 additional process per login session. 50 --- 4 unchanged lines hidden (view full) --- 55 root 6917 1005 0 15:19:16 ? 0:00 sshd: stevesk [priv] 56 stevesk 6919 6917 0 15:19:17 ? 0:03 sshd: stevesk@2 57 stevesk 6921 6919 0 15:19:17 pts/2 0:00 -bash 58 59process 1005 is the sshd process listening for new connections. 60process 6917 is the privileged monitor process, 6919 is the user owned 61sshd process and 6921 is the shell process. 62 |
| 64$Id: README.privsep,v 1.14 2004/06/28 03:50:36 tim Exp $ | 63$Id: README.privsep,v 1.15 2004/10/06 10:09:32 dtucker Exp $ |