First thanks to Nick Kew! I tried to inserted password using the string generated by htpasswd but the situation is still the same. I checked the error message but find nothing wrong when the server startup. But I noticed some thing strang when I stop the server. *** glibc detected *** /usr/sbin/httpd: corrupted double-linked list: 0x08285b80 *** ======= Backtrace: ========= /lib/libc.so.6[0xb7c8f750] /lib/libc.so.6[0xb7c90970] /lib/libc.so.6(__libc_free+0x84)[0xb7c90da4] /usr/lib/libapr-1.so.0(apr_allocator_destroy+0x2d)[0xb7db2f8d] /usr/lib/libapr-1.so.0(apr_pool_destroy+0x195)[0xb7db36a5] /usr/sbin/httpd[0x8085915] /usr/sbin/httpd[0x808593d] [0xffffe420] /usr/lib/libapr-1.so.0[0xb7db279b] /usr/lib/libapr-1.so.0(apr_proc_mutex_lock+0x12)[0xb7db1ac2] /usr/sbin/httpd[0x8085bab] /usr/sbin/httpd[0x808600d] /usr/sbin/httpd[0x80860ca] /usr/sbin/httpd(ap_mpm_run+0xc37)[0x8086d17] ..... [Wed Oct 25 11:09:58 2006] [notice] caught SIGTERM, shutting down does that mean the server crashed? As the mod_dbd is new, may be I should switch to use mod_auth_mysql. However I failed to compile the module because compile error though I followed the build instruction. I also tried to use xampp and noticed that the windows version contains mod_auth_mysql, however the linux version does not. As I want to set up the server on linux, xampp does not solve my problem. -- Best regards, Chen Yufei --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx