sudo ln -s /usr/share/ca-certificates/mozilla/* /opt/Citrix/ICAClient/keystore/cacerts

Here's how to disable the protocol on a Red Hat-based system:

1. Open a terminal window.
2. Change to the root user.
3. Issue the command sysctl -w net.ipv6.conf.all.disable_ipv6=1
4. Issue the command sysctl -w net.ipv6.conf.default.disable_ipv6=1

To re-enable IPv6, issue the following commands:

sysctl -w net.ipv6.conf.all.disable_ipv6=0
sysctl -w net.ipv6.conf.default.disable_ipv6=0

Here's how to disable the protocol on a Debian-based machine.

1. Open a terminal window.
2. Issue the command sudo nano /etc/sysctl.conf
3. Add the following at the bottom of the file:
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
4. Save and close the file.
5. Reboot the machine.

To re-enable IPv6, remove the above lines from /etc/sysctl.conf and reboot the machine.

Swappiness is a Linux kernel property that defines how often the system will use the swap space. Swappiness can have a value between 0 and 100. A low value will make the kernel to try to avoid swapping whenever possible, while a higher value will make the kernel to use the swap space more aggressively.

The default swappiness value is 60. You can check the current swappiness value by typing the following command:

cat /proc/sys/vm/swappiness

60

While the swappiness value of 60 is OK for most Linux systems, for production servers, you may need to set a lower value.

For example, to set the swappiness value to 10, you would run the following sysctl command:

sudo sysctl vm.swappiness=10

To make this parameter persistent across reboots append the following line to the /etc/sysctl.conf file:

vm.swappiness=10

The optimal swappiness value depends on your system workload and how the memory is being used. You should adjust this parameter in small increments to find an optimal value.

Kedze fonty mam lokalne v ~/Install/Linux/Fonts, staci uz len:

sudo ln -s ~/Install/Linux/Fonts /usr/share/fonts/WindowsFonts
sudo fc-cache

druha moznost je nakopirovat fonty priamo do /usr...

mkdir /usr/share/fonts/WindowsFonts
cp /Windowsdrive/Windows/Fonts/* /usr/share/fonts/WindowsFonts
chmod 755 /usr/share/fonts/WindowsFonts/*

fc-cache