DNS service installation error bind-chroot-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186

I found the following error when installing the DNS service for Linux 5 today!
[Root @ localhost server] # rpm-IVH bind-chroot-9.3.3-7.el5.i386.rpm
Warning: bind-chroot-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Error: Failed dependencies:
Bind = 30: 9.3.3-7. EL5 is needed by bind-chroot-9.3.3-7.el5.i386

This is mainly because the corresponding package is missing.

If the system software package is not fully installed, the required software package is as follows:
1: util-linux-2.13-0.44.el5.i386.rpm
[Root @ localhost server] # rpm-IVH util-linux-2.13-0.44.el5.i386.rpm
Warning: util-linux-2.13-0.44.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
Package util-linux-2.13-0.44.el5 is already installed

 

2: cachefilesd-0.7-6.el5.i386.rpm

[Root @ localhost server] # rpm-IVH cachefilesd-0.7-6.el5.i386.rpm
Warning: cachefilesd-0.7-6.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
1: cachefilesd ####################################### #### [100%]

 

3: bind-9.3.3-7.el5.i386.rpm

[Root @ localhost server] # rpm-IVH bind-9.3.3-7.el5.i386.rpm
Warning: bind-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
1: bind ####################################### #### [100%]

 

4: caching-nameserver-9.3.3-7.el5.i386.rpm

[Root @ localhost server] # rpm-IVH caching-nameserver-9.3.3-7.el5.i386.rpm
Warning: caching-nameserver-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
1: caching-nameserver ##################################### ###### [100%]

 

5: bind-chroot-9.3.3-7.el5.i386.rpm

[Root @ localhost server] # rpm-IVH bind-chroot-9.3.3-7.el5.i386.rpm
Warning: bind-chroot-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
Package bind-chroot-9.3.3-7.el5 is already installed

 

(2) Start services and services

1: start the service

[Root @ localhost server] # service named start
Starting named: [OK]

2: Check whether the service is started
[Root @ localhost server] # chkconfig -- list named
Named 0: off 1: off 2: off 3: off 4: off 5: off 6: Off

3: start the service
[Root @ localhost server] # chkconfig named on