OpenSSL

You might not want to use your distribution's secure by default OpenSSL library.

Consider doing something like this:

./config --prefix=/home/ubuntu/unsafe_openssl --openssldir=/home/ubuntu/unsafe_openssl shared zlib enable-weak-ssl-ciphers enable- 
ssl3 enable-ssl3-method
make depend
make
make -i install

Then in your pipeline startup script (NOT in the uploader script):

export PATH=/home/ubuntu/unsafe_openssl/bin:$PATH
export LD_LIBRARY_PATH=/home/ubuntu/unsafe_openssl/lib

If you don't do this, you may find that if a site has weak cryptography, wpull will spew "Operation not permitted" errors into the logs and fail to grab things.