Categories
Security Ubuntu

Automatic Installation Of Security Updates On Ubuntu

A new OpenSSL vulnerability called heartbleed has been found and patched. Information on the vulnerability is available on the CVE Website and there is even a dedicated site for the issue. While most of us keep our system regularly update our systems using apt or yum, it is best advised have an automatic update process […]

Categories
Security Ubuntu

Block failed OpenVPN logins with fail2ban

The following configuration successfully bans failed OpenVPN authentication attempts on Ubuntu 12.04 LTS. OpenVPN has been configured to authenticate against local password database via PAM. jail.conf /etc/fail2ban/filter.d/openvpn Succesfull bans appear as below in /var/log/fail2ban.log YMMV!!! Shanker BalanShanker Balan is a devops and infrastructure freelancer with over 14 years of industry experience in large scale Internet […]

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CloudStack Ubuntu XenServer

CloudStack Ubuntu 10.04 XenServer Template

Ubuntu 10.04 XenServer installation from ISO failing on CloudStack comes up often for discussion on IRC #cloudstack and the CloudStack mailing lists. There is also a JIRA ticket CLOUDSTACK-4504 raised for the issue “VM creation Is failing using the Ubuntu ISO with Xen 6.1 and 6.2”. The usual error is “Unable to create a deployment […]