Description of problem: [root@host root]# php -v PHP Warning: Unknown(): Unable to load dynamic library '/usr/lib/php4/imap.so' - /usr/lib/php4/imap.so: undefined symbol: krb5_kt_close in Unknown on line 0 PHP 4.3.10 (cgi) (built: Apr 5 2005 20:28:42) Copyright (c) 1997-2004 The PHP Group Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies Version-Release number of selected component (if applicable): Red Hat Enterprise Linux ES release 3 (Taroon Update 5) php-4.3.10 imap-2002d-12 pam_krb5-1.70-1 krb5-workstation-1.2.7-47 krb5-libs-1.2.7-47 krb5-devel-1.2.7-47 Additional Information : strace log stat64("/etc/php.d/imap.ini", {st_mode=S_IFREG|0644, st_size=49, ...}) = 0 open("/etc/php.d/imap.ini", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=49, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb73b3000 read(3, "; Enable imap extension module\ne"..., 8192) = 49 read(3, "", 4096) = 0 read(3, "", 8192) = 0 close(3) = 0 munmap(0xb73b3000, 4096) = 0 open("/usr/lib/php4/imap.so", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\36"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=841756, ...}) = 0 old_mmap(NULL, 842360, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xb02000 old_mmap(0xbcc000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xca000) = 0xbcc000 close(3) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=48638, ...}) = 0 old_mmap(NULL, 48638, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb73a8000 close(3) = 0 open("/lib/libpam.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\27"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=30488, ...}) = 0 old_mmap(NULL, 29368, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xdb1000 old_mmap(0xdb8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x7000) = 0xdb8000 close(3) = 0 open("/lib/liblaus.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \r\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0555, st_size=8548, ...}) = 0 old_mmap(NULL, 11812, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x221000 old_mmap(0x223000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x223000 close(3) = 0 munmap(0xb73a8000, 48638) = 0 munmap(0xb02000, 842360) = 0 munmap(0xdb1000, 29368) = 0 munmap(0x221000, 11812) = 0 write(2, "PHP Warning: Unknown(): Unable "..., 158) = 158
php-4.3.10 is not supported in RHEL3 - RHEL3 includes php-4.3.2. Please contact the Red Hat Global Support Services page on our website for technical support options: https://www.redhat.com/support. If you have a telephone based support contract, you may contact Red Hat at 1-888-GO-REDHAT for technical support for the problem you are experiencing.