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| author | Steve French <sfrench@us.ibm.com> | 2008-08-19 20:51:09 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2008-08-19 20:51:09 +0000 |
| commit | 3d2af3465e91335bd1dbf36b19e92079d901409f (patch) | |
| tree | 828c313011e8f70f030ef872012f63238fc14362 /fs/cifs/README | |
| parent | c16fefa56334e8d0197492607e473fdbb813073f (diff) | |
| download | linux-stable-3d2af3465e91335bd1dbf36b19e92079d901409f.tar.gz linux-stable-3d2af3465e91335bd1dbf36b19e92079d901409f.tar.bz2 linux-stable-3d2af3465e91335bd1dbf36b19e92079d901409f.zip | |
[CIFS] Kerberos support not considered experimental anymore
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/README')
| -rw-r--r-- | fs/cifs/README | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/fs/cifs/README b/fs/cifs/README index 2bd6fe556f88..68b5c1169d9d 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -642,8 +642,30 @@ The statistics for the number of total SMBs and oplock breaks are different in that they represent all for that share, not just those for which the server returned success. -Also note that "cat /proc/fs/cifs/DebugData" will display information about +Also note that "cat /proc/fs/cifs/DebugData" will display information about the active sessions and the shares that are mounted. -Enabling Kerberos (extended security) works when CONFIG_CIFS_EXPERIMENTAL is -on but requires a user space helper (from the Samba project). NTLM and NTLMv2 and -LANMAN support do not require this helper. + +Enabling Kerberos (extended security) works but requires version 1.2 or later +of the helper program cifs.upcall to be present and to be configured in the +/etc/request-key.conf file. The cifs.upcall helper program is from the Samba +project(http://www.samba.org). NTLM and NTLMv2 and LANMAN support do not +require this helper. Note that NTLMv2 security (which does not require the +cifs.upcall helper program), instead of using Kerberos, is sufficient for +some use cases. + +Enabling DFS support (used to access shares transparently in an MS-DFS +global name space) requires that CONFIG_CIFS_EXPERIMENTAL be enabled. In +addition, DFS support for target shares which are specified as UNC +names which begin with host names (rather than IP addresses) requires +a user space helper (such as cifs.upcall) to be present in order to +translate host names to ip address, and the user space helper must also +be configured in the file /etc/request-key.conf + +To use cifs Kerberos and DFS support, the Linux keyutils package should be +installed and something like the following lines should be added to the +/etc/request-key.conf file: + +create cifs.spnego * * /usr/local/sbin/cifs.upcall %k +create dns_resolver * * /usr/local/sbin/cifs.upcall %k + + |