DevOps

powerDNS with SQLite backend as a slave for BIND

(powerDNS)[https://www.powerdns.com] it’s a great alternative for large and complex BIND setup. Light footprint, and quick setup made that server as my obvious choice for slave server for primary BIND server. So let’s config begins:

How schedule start and stop EC2 instance on AWS

How schedule start and stop EC2 instance on AWS

Biggest advantage with AWS – EC2 service, is that you are paying for each minute of usage. So – why run instances 24/7 if you need them only for 12 hours par day ? You can just start and stop whenever you need them. Obviously we don’t want to forgot to shutdown our instance, or start when we need it. Here is a simple recipe how to automate whole task

SSH and SFTP tunnels via ProxyCommand

Recently on CyberCity nice article appeared about using middle server to connect to our destination servers. Most of servers have firewalls which  allow connect only from given pool of IP addresses. So tunnelling is very useful as long we are using it in smart way.