Libsasl2.so.2 cannot be found and Apache cannot start

Customer's server in the new year, was burned off, customers find data recovery company recovered the data, but the application is still inaccessible, and finally to Apache here, Apache2 can not start, said Libsasl2.so.2 can't find, Apache can not start.

Workaround:

# Whereis HTTPD

Find out the absolute path to your httpd installation. such as/USR/SBIN/HTTPD

#ldd/usr/sbin/httpd

libpcre.so.0 =>/lib/libpcre.so.0 (0xf6f8a000)

libpcreposix.so.0 =>/usr/lib/libpcreposix.so.0 (0xf6f86000)

libaprutil-0.so.0 =>/usr/lib/libaprutil-0.so.0 (0xf6f72000)

libldap-2.2.so.7 =>/usr/lib/libldap-2.2.so.7 (0xf6f41000)

liblber-2.2.so.7 =>/usr/lib/liblber-2.2.so.7 (0xf6f35000)

libdb-4.2.so =>/lib/tls/i686/libdb-4.2.so (0xf6e67000)

libexpat.so.0 =>/usr/lib/libexpat.so.0 (0xf6e48000)

libapr-0.so.0 =>/usr/lib/libapr-0.so.0 (0xf6e25000)

Librt.so.1 =>/lib/tls/librt.so.1 (0xf6e11000)

Libm.so.6 =>/lib/tls/libm.so.6 (0xf6dee000)

Libcrypt.so.1 =>/lib/libcrypt.so.1 (0xf6dc0000)

libpthread.so.0 =>/lib/tls/libpthread.so.0 (0xf6dae000)

Libdl.so.2 =>/lib/libdl.so.2 (0xf6daa000)

Libc.so.6 =>/lib/tls/libc.so.6 (0xf6c82000)

Libresolv.so.2 =>/lib/libresolv.so.2 (0xf6c6e000)

Libsasl2.so.2 => not found

Libssl.so.4 =>/lib/libssl.so.4 (0xf6c26000)

Libcrypto.so.4 =>/lib/libcrypto.so.4 (0xf6b3e000)

/lib/ld-linux.so.2 (0xf6fab000)

Libgssapi_krb5.so.2 =>/usr/lib/libgssapi_krb5.so.2 (0xf6b29000)

Libkrb5.so.3 =>/usr/lib/libkrb5.so.3 (0xf6ac4000)

Libcom_err.so.2 =>/lib/libcom_err.so.2 (0xf6ac1000)

Libk5crypto.so.3 =>/usr/lib/libk5crypto.so.3 (0xf6aa0000)

Libz.so.1 =>/usr/lib/libz.so.1 (0xf6a90000)

#whereis libsasl2.so.2

/usr/local/lib/libsasl2.so.2

/usr/local/lib/libsasl2.so.2.0.21

Ls-l/usr/local/lib/libsasl2.so.2

Found/usr/local/lib/libsasl2.so.2==>/usr/local/lib/libsasl2.so.2.0.21

So Ln-s/usr/local/lib/libsasl2.so.2.0.21/lib/libsasl2.so.2

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