SOGo Groupware database update after yum upgrade is not normally necessary as it merely reduces the number of tables created for a new collection.
Categories
Categories
How to list all URL's in Redirect chain
This simple utility is extremely useful in detecting bad redirects and loops, specially in big websites. You can also include it in scripts. wget http://gmail.com 2>&1 | grep Location: The response, in this case, is: Location: https://www.google.com/gmail/ [following] Location: https://mail.google.com/mail/ [following] Location: https://accounts.google.com/ServiceLogin?service=mail&passive=true&rm=false&continue=https://mail.google.com/mail/&ss=1&scc=1<mpl=default<mplcache=2&emr=1&osid=1# [following]
Benefits of hosting your Nameservers Ease of changing hosting providers: Having your own nameservers make it easy when you are changing your hosting providers for two reasons: Zero downtime in switching Minimal change on Domain Register (change Nameserver and Hostname reords only) Other nameserver changes can be done easily with your own nameserver, even scripted […]
Adding additional IP addresses in OVH is rather unconventional and the guide they point to in their mail is non-existent. The process, fortunately, is simple: ssh to the server as root cd /etc/systemd/network/ vi *-default.network Add the new IP address after the original IPv4 Address DHCP=no Address=Main_IP/24 Address=Failover_IP/32 Save and close the file Reboot the […]
Categories
Chrome: How to view YouTube at 3x Speed
When viewing a YouTube video you may want to quickly skip through introductory section or boring/repetitive parts. The following solution will allow you to toggle between high speed and normal viewing. 3x speed-up is not offered by YouTube. With little practice you can understand even at that high speed, you need to be a bit […]
It is easy to create large number of LXD / LXC containers as it consumes minimal resources. Coupled with btrfs, it consumes minimal hard-disk space also due to de-duplication built-in within btrfs file system. Soon you would find yourself spending a significant amount of time updating (sudo apt update) and upgrading (sudo apt -y upgrade) […]
Grails provides support for validating fields. Here is a typical User class with field validation. It ensure that email address & url is of proper format, login is unique and password is not openly displayed. package com.taragana class User { String login String password String email String url static constraints = { login unique: true […]
Oracle JDK can be easily installed in Ubuntu using apt. Using apt simplifies the job of updating the JDK from time to time. To install Oracle JDK 8 sudo apt update sudo add-apt-repository ppa:webupd8team/java sudo apt update sudo apt install oracle-java8-installer
GradleDaemon sometimes redundantly runs in the background and Grails gives erroneous responses. The simplest solution is to kill all the errant GradleDaemon processes and run the app again. Below is a simple script which will run all the errant GradleDaemon processes. The same can be used for killing any processes like say Firefox. Just substitute […]
20 years ago to ensure that Amazon would retain high standards as it grew, Jeff Bezos outlined a simple, three-question test for hiring new employees in his 1998 letter to shareholders, a year after the online bookseller went public. “It would be impossible to produce results in an environment as dynamic as the Internet without […]