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.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
.0 => /lib/.0 (0xf6f8a000)
.0 => /usr/lib/.0 (0xf6f86000)
.0 => /usr/lib/.0 (0xf6f72000)
.7 => /usr/lib/.7 (0xf6f41000)
.7 => /usr/lib/.7 (0xf6f35000)
=> /lib/tls/i686/ (0xf6e67000)
.0 => /usr/lib/.0 (0xf6e48000)
.0 => /usr/lib/.0 (0xf6e25000)
.1 => /lib/tls/.1 (0xf6e11000)
libm.so.6 => /lib/tls/libm.so.6 (0xf6dee000)
.1 => /lib/.1 (0xf6dc0000)
.0 => /lib/tls/.0 (0xf6dae000)
libdl.so.2 => /lib/libdl.so.2 (0xf6daa000)
libc.so.6 => /lib/tls/libc.so.6 (0xf6c82000)
.2 => /lib/.2 (0xf6c6e000)
.2 => not found
.4 => /lib/.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)
.3 => /usr/lib/.3 (0xf6ac4000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0xf6ac1000)
.3 => /usr/lib/.3 (0xf6aa0000)
libz.so.1 => /usr/lib/libz.so.1 (0xf6a90000)
#whereis .2
/usr/local/lib/.2
/usr/local/lib/.2.0.21
ls -l /usr/local/lib/.2
发现 /usr/local/lib/.2==>/usr/local/lib/.2.0.21
所以 ln -s /usr/local/lib/.2.0.21 /lib/.2
然后再检查一下:#ldd /usr/sbin/httpd
.0 => /lib/.0 (0xf6f8a000)
.0 => /usr/lib/.0 (0xf6f86000)
.0 => /usr/lib/.0 (0xf6f72000)
.7 => /usr/lib/.7 (0xf6f41000)
.7 => /usr/lib/.7 (0xf6f35000)
=> /lib/tls/i686/ (0xf6e67000)
.0 => /usr/lib/.0 (0xf6e48000)
.0 => /usr/lib/.0 (0xf6e25000)
.1 => /lib/tls/.1 (0xf6e11000)
libm.so.6 => /lib/tls/libm.so.6 (0xf6dee000)
.1 => /lib/.1 (0xf6dc0000)
.0 => /lib/tls/.0 (0xf6dae000)
libdl.so.2 => /lib/libdl.so.2 (0xf6daa000)
libc.so.6 => /lib/tls/libc.so.6 (0xf6c82000)
.2 => /lib/.2 (0xf6c6e000)
.2 => /lib/.2 (0xf6c5a000)
.4 => /lib/.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)
.3 => /usr/lib/.3 (0xf6ac4000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0xf6ac1000)
.3 => /usr/lib/.3 (0xf6aa0000)
libz.so.1 => /usr/lib/libz.so.1 (0xf6a90000)
重新启动 httpd , OK 了.
