[linux]Enumerating subdomain

A server has a dns service and its ip address is, so I use nslookup and change the server to, and find out what is its fqdn. It is revealed that its fqdn is ns1.cronos.htb, so I am guessing the domain name would be cronos.htb too. To find out its sub domains in … Continue reading [linux]Enumerating subdomain

[linux] named pipe

I am learning new things while attempting hackthebox machines, one of the thing I learned about linux is the named pipe. To identify whether the file is a named pipe you can list like this: But if you try to read the content of the /tmp/f the screen will seem like hang... Because this file … Continue reading [linux] named pipe

[Arch Linux]Cannot fit to guest in Vmware workstation

Although Fit Guest Now was enabled after open-vm-tools was installed in Arch Linux, however clicking on Fit Guest Now did not have effect. I tried these steps and worked for me. Enable Accelerate 3D graphics in VM's display settings Install xf86-video-vmware driver sudo pacman -S xf86-video-vmware Ensure vmtoolsd starts, if not do this sudo systemctl … Continue reading [Arch Linux]Cannot fit to guest in Vmware workstation

[CentOS] Tools not included in CentOS 7 minimal

There are a few things not included in the minimal installation of CentOS 7. So here's a record on the things which I need. I have installed Arch, CentOS and Debian Linux, I need to give appreciation to the teams who have compiled the packages and easily download from the repository, because the complexity of … Continue reading [CentOS] Tools not included in CentOS 7 minimal

[Linux]Arch Linux installation until xfce desktop

This is a personal note for me if I need to install Arch Linux on virtual box again. Arch Linux is unlike Linux Mint, it only comes with a shell after installation you will need to install the software you need by using pacman. Grand reference is to use the Arch Wiki. Live CD There … Continue reading [Linux]Arch Linux installation until xfce desktop

[Arch Linux]Could not boot to Arch and stuck in grub shell

I have made the grub configuration with grub-mkconfig -o /boot/grub/grub.cfg in the arch-chroot environment, after i generated the grub config I exited from the arch-chroot and unmount the /mnt then reboot, Arch could not be booted but instead my console was stucked in grub. this is because I have not downloaded the linux-firmware which includes … Continue reading [Arch Linux]Could not boot to Arch and stuck in grub shell