Paul's Programming Notes     Archive     Feed     Github

New Machine Setup For Flask Development On Ubuntu

Here are the commands I use when I bring up a new Ubuntu server for flask development:

MySQL Performance LXC Container vs Host

I have a linux virtual container (LXC) and the server hosting the container running the same version of MySQL with the same database.

I tried running some select queries on both of the both the virtual container and host for benchmark purposes. My conclusion? MySQL read performance inside and outside the LXC container is the exactly the same.

WHMCS Cronjob Error

If you get the following error while you try to run the WHMCS cronjob from the command line:
Site error: the file <b>/var/www/accounts/admin/cron.php</b> requires the ionCube PHP Loader ioncube_loader_lin_5.3.so to be installed by the website operator. If you are the website operator please use the <a href="http://www.ioncube.com/lw/">ionCube Loader Wizard</a> to assist with installation.

You need to add your the ioncube zend extension to the CLI php.ini too: /etc/php5/cli/php.ini


Sendmail/STARTTLS verify=FAIL



Oct 19 14:04:34 Billing sm-mta[17583]: STARTTLS=client, relay=aspmx.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128

If you see those errors in your mail.log and your emails are failing to send, you need to add your ssl cert from apache to the sendmail config in /etc/mail/sendmail.cf:
# CA directory
O CACertPath=/etc/apache2/ssl
# CA file
O CACertFile=/etc/apache2/ssl/example.ca-bundle
# Server Cert
O ServerCertFile=/etc/apache2/ssl/example.cert
# Server private key
O ServerKeyFile=/etc/apache2/ssl/example.key