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Operating Systems Linux Red Hat Dns configuration error in Redhat Post 302347202 by sahu.tapan on Tuesday 25th of August 2009 06:15:29 AM
Old 08-25-2009
Dns configuration error in Redhat

Dear All I want to configure DNS in redhat linux. i am following these steps but when i restart the services it is showing status failed. Please any body can help me on urgent basis.

#service named restart

Stopping named: [FAILED]
Starting named: [FAILED]


---------Edited in named.conf file---------------------

options {
listen-on port 53 { nms.example.com; 10.13.74.162; 127.0.0.1; };
directory "/var/named";
query-source port 53;
allow-query { nms.example.com; 10.13.0.0/24; };
forwarders { 10.11.8.14; };
forward only;
};

zone "example.com" IN {
type master; file "example.com.zone";
allow-update { none; };
forwarders { 10.11.8.14; };
};


zone"74.13.10.in-addr.arpa" IN {
type master; file "10.13.74.zone";
allow-update { none; };
forwarders { };
};


---After that----

#cd /var/named/chroot/var/named
#vi example.com.zone

Quote:
$TTL 86400 @ IN SOA nms.example.com. root.nms.example.com. (
2001101100 ; serial (d. adams)
28800 ; refresh
14400 ; retry
3600000 ; expiry
0 ) ; minimum
IN NS nms.example.com.
IN A 10.13.74.162 example.com.
IN A 10.13.74.162 nms.example.com.
IN A 10.13.74.162
www IN A 10.13.74.162
www1 IN CNAME nms.example.com.
www2 IN CNAME nms.example.com.
www3 IN CNAME nms.example.com.
@ IN MX 10 nms.example.com.
nms IN MX 10 nms.example.com.

-------------configuration of 10.13.74.162.zone file--------------------


#vi 10.13.74.162.zone

[quote]
$TTL 86400 @ IN SOA nms.example.com. root.nms.example.com. ( 4 10800 3600 604800 86400 )
IN NS nms.example.com.
162.74.13.10.in-addr.arpa.
IN PTR nms.example.com.


After configuring i restart the service. as i have see the log messages looking like this.

#cd /var/log/ #vi messages

Quote:
Aug 25 21:08:47 nms named[4959]: loading configuration from '/etc/named.conf'
Aug 25 21:08:47 nms named[4959]: /etc/named.conf:15: undefined ACL 'nms.example.com' \
Aug 25 21:08:47 nms named[4959]: not listening on any interfaces
Aug 25 21:08:47 nms named[4959]: /etc/named.conf:19: undefined ACL 'nms.example.com'
Aug 25 21:08:47 nms named[4959]: loading configuration: not found
Aug 25 21:08:47 nms named[4959]: exiting (due to fatal error)

PLease help me..... Thanks in Advance tapan

Last edited by sahu.tapan; 08-25-2009 at 07:25 AM..
 

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MBSNRTOWCS(3)						     Linux Programmer's Manual						     MBSNRTOWCS(3)

NAME
mbsnrtowcs - convert a multibyte string to a wide-character string SYNOPSIS
#include <wchar.h> size_t mbsnrtowcs(wchar_t *dest, const char **src, size_t nms, size_t len, mbstate_t *ps); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mbsnrtowcs(): Since glibc 2.10: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE DESCRIPTION
The mbsnrtowcs() function is like the mbsrtowcs(3) function, except that the number of bytes to be converted, starting at *src, is limited to nms. If dest is not a NULL pointer, the mbsnrtowcs() function converts at most nms bytes from the multibyte string *src to a wide-character string starting at dest. At most len wide characters are written to dest. The shift state *ps is updated. The conversion is effectively performed by repeatedly calling mbrtowc(dest, *src, n, ps) where n is some positive number, as long as this call succeeds, and then incre- menting dest by one and *src by the number of bytes consumed. The conversion can stop for three reasons: 1. An invalid multibyte sequence has been encountered. In this case *src is left pointing to the invalid multibyte sequence, (size_t) -1 is returned, and errno is set to EILSEQ. 2. The nms limit forces a stop, or len non-L'' wide characters have been stored at dest. In this case *src is left pointing to the next multibyte sequence to be converted, and the number of wide characters written to dest is returned. 3. The multibyte string has been completely converted, including the terminating null wide character ('') (which has the side effect of bringing back *ps to the initial state). In this case *src is set to NULL, and the number of wide characters written to dest, excluding the terminating null wide character, is returned. If dest is NULL, len is ignored, and the conversion proceeds as above, except that the converted wide characters are not written out to memory, and that no destination length limit exists. In both of the above cases, if ps is a NULL pointer, a static anonymous state only known to the mbsnrtowcs function is used instead. The programmer must ensure that there is room for at least len wide characters at dest. RETURN VALUE
The mbsnrtowcs() function returns the number of wide characters that make up the converted part of the wide-character string, not including the terminating null wide character. If an invalid multibyte sequence was encountered, (size_t) -1 is returned, and errno set to EILSEQ. CONFORMING TO
POSIX.1-2008. NOTES
The behavior of mbsnrtowcs() depends on the LC_CTYPE category of the current locale. Passing NULL as ps is not multithread safe. SEE ALSO
iconv(3), mbsrtowcs(3) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2011-10-01 MBSNRTOWCS(3)
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