281 lines
4.3 KiB
HTML
281 lines
4.3 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Verifying the NIS/NYS Installation
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</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="The Linux NIS(YP)/NYS/NIS+ HOWTO"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="Setting up a NIS Server
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"
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HREF="ypserv.html"><LINK
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REL="NEXT"
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TITLE="Creating and Updating NIS maps
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"
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HREF="maps.html"></HEAD
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><BODY
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CLASS="SECT1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>The Linux NIS(YP)/NYS/NIS+ HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="ypserv.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="maps.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="VERIFICATION"
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></A
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>10. Verifying the NIS/NYS Installation
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</H1
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><P
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>If everything is fine (as it should be), you should be able to verify
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your installation with a few simple commands. Assuming, for example,
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your passwd file is being supplied by NIS, the command</P
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><P
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> <TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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> % ypcat passwd</PRE
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></FONT
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></TD
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></TR
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></TABLE
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> </P
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><P
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>should give you the contents of your NIS passwd file. The command</P
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><P
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> <TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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> % ypmatch userid passwd</PRE
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></FONT
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></TD
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></TR
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></TABLE
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> </P
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><P
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>(where userid is the login name of an arbitrary user) should give you
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the user's entry in the NIS passwd file. The "ypcat" and "ypmatch"
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programs should be included with your distribution of traditional
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NIS or NYS.</P
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><P
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>If a user cannot log in, run the following program on the client:
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<TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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>#include <stdio.h>
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#include <pwd.h>
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#include <sys/types.h>
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int
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main(int argc, char *argv[])
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{
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struct passwd *pwd;
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if(argc != 2)
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{
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fprintf(stderr,"Usage: getwpnam username\n");
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exit(1);
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}
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pwd=getpwnam(argv[1]);
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if(pwd != NULL)
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{
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printf("name.....: [%s]\n",pwd->pw_name);
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printf("password.: [%s]\n",pwd->pw_passwd);
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printf("user id..: [%d]\n", pwd->pw_uid);
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printf("group id.: [%d]\n",pwd->pw_gid);
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printf("gecos....: [%s]\n",pwd->pw_gecos);
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printf("directory: [%s]\n",pwd->pw_dir);
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printf("shell....: [%s]\n",pwd->pw_shell);
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}
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else
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fprintf(stderr,"User \"%s\" not found!\n",argv[1]);
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exit(0);
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}</PRE
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></FONT
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></TD
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></TR
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></TABLE
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> </P
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><P
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>Running this program with the username as parameter will print all the
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information the getpwnam function gives back for this user. This should
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show you which entry is incorrect. The most common problem is, that the
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password field is overwritten with a "*".</P
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><P
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>GNU C Library 2.1 (glibc 2.1) comes with a tool called getent. Use this
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program instead the above on such a system. You could try:
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<TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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> getent passwd</PRE
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></FONT
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></TD
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></TR
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></TABLE
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>
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or
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<TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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> getent passwd login</PRE
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></FONT
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></TD
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></TR
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></TABLE
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> </P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="ypserv.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
|
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><TD
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WIDTH="33%"
|
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="maps.html"
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ACCESSKEY="N"
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>Next</A
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></TD
|
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></TR
|
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><TR
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><TD
|
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WIDTH="33%"
|
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ALIGN="left"
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VALIGN="top"
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>Setting up a NIS Server </TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
|
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><TD
|
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WIDTH="33%"
|
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ALIGN="right"
|
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VALIGN="top"
|
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>Creating and Updating NIS maps </TD
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></TR
|
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></TABLE
|
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></DIV
|
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></BODY
|
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></HTML
|
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> |