01-22-2019
The Order of the Wizard's Hat - Lifetime Achievement Award 2019 - Congrats to Scrutinizer
Please join me in congratulating
Scrutinizer for his long overdue lifetime achievement award badge from UNIX.COM in computer wizardry:
"The Order of the Wizard's Hat - Lifetime Achievement Award"
This "Order of the Wizard's Hat" is presented to Scrutinizer for Computer Wizardry in the UNIX Operating Environment, especially in the UNIX shell and shell scripting, and for 10 years dedication to helping all Members at UNIX.COM witnessed by his 12,950 excellent posts and 3,541 user thanks. Thank You from All of Us.
These 6 Users Gave Thanks to Neo For This Post:
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Could someone tell me where and how can I change the default value for root password lifetime. Now it is 30 days and I want to increase it on 90.
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Happy New Year!
There are currently four UNIX.COM achievement awards up for grabs, as the say. Here they are, in no particular order:
The Order of the Raven
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Dear All,
I am pleased to post that I am announcing a new award, "Poster of the Year 2019" and calling for your nominations (privately to me).
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Dear All,
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LEARN ABOUT MOJAVE
getpeereid
GETPEEREID(3) BSD Library Functions Manual GETPEEREID(3)
NAME
getpeereid -- get the effective credentials of a UNIX-domain peer
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
int
getpeereid(int s, uid_t *euid, gid_t *egid);
DESCRIPTION
The getpeereid() function returns the effective user and group IDs of the peer connected to a UNIX-domain socket. The argument s must be a
UNIX-domain socket (unix(4)) of type SOCK_STREAM on which either connect(2) or listen(2) have been called. The effective used ID is placed
in euid, and the effective group ID in egid.
The credentials returned to the listen(2) caller are those of its peer at the time it called connect(2); the credentials returned to the
connect(2) caller are those of its peer at the time it called listen(2). This mechanism is reliable; there is no way for either side to
influence the credentials returned to its peer except by calling the appropriate system call (i.e., either connect(2) or listen(2)) under
different effective credentials.
One common use of this routine is for a UNIX-domain server to verify the credentials of its client. Likewise, the client can verify the cre-
dentials of the server.
IMPLEMENTATION NOTES
On FreeBSD, getpeereid() is implemented in terms of the LOCAL_PEERCRED unix(4) socket option.
RETURN VALUES
The getpeereid() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi-
cate the error.
ERRORS
The getpeereid() function fails if:
[EBADF] The argument s is not a valid descriptor.
[ENOTSOCK] The argument s is a file, not a socket.
[ENOTCONN] The argument s does not refer to a socket on which connect(2) or listen(2) have been called.
[EINVAL] The argument s does not refer to a socket of type SOCK_STREAM, or the kernel returned invalid data.
SEE ALSO
connect(2), getpeername(2), getsockname(2), getsockopt(2), listen(2), unix(4)
HISTORY
The getpeereid() function appeared in FreeBSD 4.6.
BSD
July 15, 2001 BSD