libsasl2.so.2无法找到并且apache无法启动

客户的服务器在过年时，被火烧掉了，客户找数据恢复公司恢复出来了数据，但是应用还是无法访问，最后到了apache这里,apache2 无法启动, 说libsasl2.so.2 找不到，apache 无法启动.

解决方法:

# whereis httpd

找出你的httpd 的安装绝对路径. 如 /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

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

所以 ln -s /usr/local/lib/libsasl2.so.2.0.21 /lib/libsasl2.so.2

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