Ubuntu Screen Recorder […]
csf error path to iptables is either not set or incorrect
Whem install csf firewall on Ubuntu 20.04, i get following error
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root@ok:~# csf *Error* The path to iptables is either not set or incorrect for IPTABLES [/usr/sbin/ip6tables] in /etc/csf/csf.conf at /usr/local/csf/lib/ConfigServer/URLGet.pm line 26. Compilation failed in require at /usr/sbin/csf line 21. BEGIN failed--compilation aborted at /usr/sbin/csf line 21. root@ok:~# |
This is because path for iptables is changed in Ubuntu 20.04. To fix the error edit csf.conf
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vi /etc/csf/csf.conf |
Find
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IPTABLES = "/sbin/iptables" IPTABLES_SAVE = "/sbin/iptables-save" IPTABLES_RESTORE = "/sbin/iptables-restore" IP6TABLES = "/sbin/ip6tables" IP6TABLES_SAVE = "/sbin/ip6tables-save" IP6TABLES_RESTORE = "/sbin/ip6tables-restore" |
Replace with
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IPTABLES = "/usr/sbin/iptables" IPTABLES_SAVE = "/usr/sbin/iptables-save" IPTABLES_RESTORE = "/usr/sbin/iptables-restore" IP6TABLES = "/usr/sbin/ip6tables" IP6TABLES_SAVE = "/usr/sbin/ip6tables-save" IP6TABLES_RESTORE = "/usr/sbin/ip6tables-restore" |
Now restart csf with csf -r, it will work.
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csf -r systemctl restart lfd |
See csf […]
Install TeamSpeak Client on Ubuntu
To install TeamSpeak client on Ubuntu, download latest version from https://www.teamspeak.com/en/downloads/ Download page list both 32 and 64 bit versions. Most computers these days use 64 bit OS. So download 64 bit version unless you are using older computer with 32 bit OS. On Ubuntu, you can find if you are using 32 or 64 […]
bash: man: command not found
When running man command on a debian server, i get error
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root@lab:~# man sftp -bash: man: command not found root@lab:~# |
This is because man-db package not installed on the server. To fix, install man-db package with
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apt install man-db |
See Errors […]
Enable FTP for EasyEngine Website
To Enable FTP for EasyEngine web sites, we need to install pure-ftpd. On Ubuntu/Debian, run
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apt install -y pure-ftpd |
Enable virtial FTP users
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ln -s /etc/pure-ftpd/conf/PureDB /etc/pure-ftpd/auth/PureDB touch /etc/pure-ftpd/pureftpd.pdb |
In EasyEngine, we sites files are owned by www-data user, this user have a UID of 33. By default pure-ftpd won’t allow this. To enable users with UD 33 to login, run
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echo 1 > /etc/pure-ftpd/conf/MinUID |
Now […]
Install AnyDesk on Ubuntu
To install AnyDesk on Ubuntu, run following commands as user root (sudo su).
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wget -qO - https://keys.anydesk.com/repos/DEB-GPG-KEY | apt-key add - |
Add repository
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echo "deb http://deb.anydesk.com/ all main" > /etc/apt/sources.list.d/anydesk-stable.list |
Update apt cache
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apt update |
Install anydesk with
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apt install anydesk |
If you don’t want auto start anydesk on boot, disable it with
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systemctl disable anydesk |
If you need to enable AnyDesk start on boot, run
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systemctl enable anydesk |
To see if anydesk is enabled […]
Enable Remote Desktop in Ubuntu from the command line
Method 1: Using x11vnc Connect to remote computer with SSH
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ssh user@REMOTE_PC_IP |
Install x11vnc
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sudo apt install x11vnc |
start x11vnc as the user that is logged in to GUI.
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x11vnc -display :0 |
Now you should be able to connect to the desktop using any vnc client software using
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REMOTE_PC_IP:0 |
Method 2: Using vino Connect to remote computer with SSH
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ssh -Y user@REMOTE_PC_IP |
Run […]
Install PowerDNS on Ubuntu 20.04
PowerDNS is an OpenSource DNS server. Update apt repo
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apt-get update && apt-get upgrade -y |
On Ubuntu, systemd-resolved listen to port 53. This is a local DNS resolver, we need to stop this service before we can install PowerDNS.
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systemctl disable systemd-resolved systemctl stop systemd-resolved rm -f /etc/resolv.conf echo "nameserver 1.1.1.1" > /etc/resolv.conf echo "nameserver 8.8.8.8" >> /etc/resolv.conf |
To install PowerDNS with MySQL backend, run
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apt install pdns-server pdns-backend-mysql |
Since we are using MySQL backend to store DNS zones, we need […]
Prevent Notification steal focus on Ubuntu 18.04
On Ubuntu, some times notifications steal focus from current application. This annoying when you are working on terminal. This is due to start focus feature of gnome when your mouse is over the notification area.
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boby@sok-01:~$ gsettings get org.gnome.desktop.wm.preferences focus-new-windows 'smart' boby@sok-01:~$ |
We need to change the value of focus-new-windows from smart to strict. This can be done with command
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gsettings set org.gnome.desktop.wm.preferences focus-new-windows 'strict' |
[…]
Change Apache User in Ubuntu
On Ubuntu/Debian server, apache run as user www-data. When you install Apache web server on your local computer for developement purpose, it may be easier to run Apache as your user. If you run Apache as www-data user, you will need to chmod folders 777 for yoru web application to write to a folder like […]