Proftpd TLS connection requires passive mode ports to be open if you are using a firewall.In this case UFW.


In the proftpd.conf file, find the below line and remove # from the start.You can narrow the ephemeral port range if you like.

PassivePorts   startport endport

restart proftpd then add a firewall rule to that port range.

ufw allow startport:endport/tcp
ufw disable && ufw enable



VMware ESXi disabling IOMMU

Date : 16/06/2017

If you encountered freeze or halt while running ESXi installer on your system then probably your motherboard doesn't have Input–output memory management unit or it's disabled in the bios.So this is what you must do for it.When you boot from ESXi you must input a command at bootloader, which is "noiommu".This way you can boot your installer and install the system on the drive.

After the setup on first bootup, again you need to enter the "noiommu" command to your bootloader.After the system bootup you need to ssh into ESXi to change boot arguments indefinitely.First enable SSH to ESXi or on the shell 

vi /bootbank/boot.cfg

add the option "noiommu" to the "kernelopt" line and save it.

		 

If you watched Interstellar movie, then you probably love the soundtracks of the movie.So why don't you enjoy it with a full of goosebumps on the way.

Guys, let me get this straight, there are no brakes on the hype train!

Fueled by his restored faith in humanity and inspired by Superman’s selfless act, Bruce Wayne enlists the help of his newfound ally, Diana Prince, to face an even greater enemy. Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes—Batman, Wonder Woman, Aquaman, Cyborg and The Flash—it may already be too late to save the planet from an assault of catastrophic proportions.

In theaters November 2017

Installing and setting ZSH as default shell

apt-get update
apt-get install zsh

Set it as default shell

chsh -s /bin/zsh

Reboot your sytem.