升级openssl

# wget http://www.openssl.org/source/openssl-1.0.1h.tar.gz
# tar xvf openssl-1.0.1h.tar.gz
# cd openssl-1.0.1h/
# ./config shared zlib
...

　　make[1]: Nothing to be done for `links‘.
　　make[1]: Leaving directory `/root/openssl-1.0.1h/tools‘
　　generating dummy tests (if needed)...
　　make[1]: Entering directory `/root/openssl-1.0.1h/test‘
　　make[1]: Nothing to be done for `generate‘.
　　make[1]: Leaving directory `/root/openssl-1.0.1h/test‘

　　Configured for linux-x86_64.

　# make

报错了，没有发现zlib.h
需要安装
# apt-get install zlib1g-dev
重新编译：
# make

编译成功
# make install

# rm -rf /usr/bin/openssl 
# rm -rf /usr/include/openssl/
# ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl
# ln -s /usr/local/ssl/include/openssl/ /usr/include/openssl 
# echo "/usr/local/ssl/lib/" >> /etc/ld.so.conf

openssl到此升级成功