...HREF="node1.html#fig-flowchart">1.
In Figure 1, ~NAME is the home directory of the user whose user-name is NAME; ~USER is the home directory of the user with user-id uid.
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...uid
NFS uses effective uids.
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.../var/spool/mail.
Other directories used for this purpose are /var/mail on SVR4, /usr/mail on other System V-based operating-systems, and /usr/spool/mail on BSD-based systems.
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...machine.
Delivery via NFS-mounted filesystems may require usage of rpc.lockd and rpc.statd to provide distributed file-locking, both of which are widely regarded as unstable and unreliable. Furthermore, this will degrade performance, as local processes as well as remote nfsd processes are kept busy.
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...hard-mounted,
No SA in their right minds would soft-mount read/write partitions -- the chances for data loss are too great.
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...directories,
AIX 1.2's bellmail for the IBM PS/2 s[9], /bin/mail on SunOS for the Sun 386i machines, and zmailer[27].
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...to.
This assumes that they can login to a different host. Some systems, such as HP-UX, do not allow login if they cannot chdir to the user's home directory.
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...searchable,
System V has the mail spool directory only group writable but that makes it more difficult to install other UAs or MTAs.
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...there.
Note that, in order to allow mail delivery to NFS-mounted mail spool directories, most vendors have modified the /bin/mail program to set its uid to that of the recipient when delivering mail. If a local delivery agent (LDA) on a system does not provide this behavior, the MTA must arrange to invoke it with the uid of the recipient -- this can be done by a wrapper C program.
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...host,
Or as the superuser elsewhere, if the filesystem is NFS-exported with anon=0.
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...home
The name of the symbolic link is configurable.
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...HREF="node4.html#tab-alt-spool">3.
In the conditions for Table 3, ~USER is the home directory of the user with user-id uid.
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...service.
The SAs group felt so convinced that hlfsd was working well, that we were the first to use it on our home machines.
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Erez Zadok
12/6/1997