Tools to check website – dns – email hosting status

DNS health check: https://toolbox.googleapps.com http://dnscheck.pingdom.com/ https://mxtoolbox.com/domain/ https://dnschecker.org/ https://www.whatsmydns.net/ https://www.nexcess.net/resources/tools/global-dns-checker/ http://www.dnsstuff.com/ https://dnsquery.org/ https://manytools.org/ http://simpledns.com/lookup-dg Website check: https://tools.pingdom.com/ https://gtmetrix.com/ http://www.webpagetest.org/ Check IP whitelist: https://mxtoolbox.com/arin.aspx https://talosintelligence.com/ Azure speed test: http://azurespeedtest.azurewebsites.net/ https://azure.microsoft.com/en-us/regions/https://azure.microsoft.com/en-us/regions/ AWS speedtest: https://cloudharmony.com/speedtest-for-aws Linode speed test: https://www.linode.com/speedtest https://www.lifewire.com/internet-speed-test-sites-2626177 Free & Public DNS Servers (Valid January 2018) https://servers.opennic.org/ Provider Primary DNS Server Secondary DNS Server Level31 209.244.0.3 209.244.0.4 […]

Git Memo – Repository Backup

http://git-memo.readthedocs.io/en/latest/introduction.html http://git-memo.readthedocs.io/en/latest/repository_backup.html file-system copy A git repository can be safely copied to an other directory, or put in an archive file. This is a very basic way of keeping a backup of your repo. cp -r myrepo backup_copy tar -czf backup_copy.tgz myrepo But such a frozen copy can not be updated. git bundle Git bundle […]

How to properly mirror a git repository

http://blog.plataformatec.com.br/2013/05/how-to-properly-mirror-a-git-repository/ When people talk about mirroring a git repository, usually we have a simple answer in mind: Just git clone the repo and you’re set!! However, what we want with mirroring is to replicate the state of an origin repository (or upstream repository). By state, we mean all the branches (including master) and all the tags […]

TestDisk is powerful free data recovery software

https://www.cgsecurity.org/wiki/TestDisk TestDisk is OpenSource software and is licensed under the terms of the GNU General Public License (GPL v2+). TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software: certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy. TestDisk can […]

Apache Virtual Hosting With Different Users

https://cloudkul.com/blog/apache-virtual-hosting-with-different-users/ The Apache web server is most popular web server in the world. With Apache2, introduced Multi-Processing Modules, or MPM which changed the basic functionality of  web server by modifying how Apache listens to the network, accepts, and handles requests. apache2-mpm-itk is an MPM module for the apache web server which allows you to run each of […]

Powering on a virtual machine from the command line when the host cannot be managed using vSphere Client

https://kb.vmware.com/s/article/1038043 To power on a virtual machine from the command line: List the inventory ID of the virtual machine with the command: vim-cmd vmsvc/getallvms |grep <vm name> Note: The first column of the output shows the vmid. Check the power state of the virtual machine with the command: vim-cmd vmsvc/power.getstate <vmid> Power-on the virtual machine with […]