Jitsi Meet is a pretty valid alternative to Google Hangouts, but in this case, we’re talking about a completely open-source alternative. On the other hand, it’s free and even though it’s not, it offers some advantages that we could consider premium like HD Audio support. Everything 100% encrypted.

In these times in which the formal work has been threatened, some companies have found in Jitsi a quality tool. Especially because it does not require the creation of an account and because it can be installed on your server.

Some features of Jitsi Meet are as follows:

• Share your desktop, presentations, and more.
• Invite users to a conference via a simple, custom URL.
• Edit documents together using Etherpad.P
• Pick fun meeting URLs for every meeting.
• Trade messages and emojis while you video conference, with integrated chat.

Again, all this for free, open-source, and encrypted conversations. So, technologically it’s pretty competent.

Install Jitsi on Debian 10

We will be able to install Jitsi with the repository that the developers give us. This ensures that the integration with the system and the package manager is complete.

To perform the installation, we will have to connect to our server and update it.

sudo apt update
sudo apt upgrade

Then, it is necessary to change the hostname of the computer for your domain.

sudo hostnamectl set-hostname [domain]

Replace [domain] with yours.

Then modify the hosts file of the server and add the following line:

sudo nano /etc/hosts 
127.0.0.1 domain  

Before continuing, you have to make sure that ports 80, 443 and 4443 of the TCP protocol and port 10000 of the UDP protocol are open in the firewall.

Now it is time to install the gnupg package which contains instructions for adding GPG keys from external repositories.

sudo apt update
sudo apt install gnupg

Now you can download and add the GPG key from the Jitsi repository.

wget https://download.jitsi.org/jitsi-key.gpg.key
sudo apt-key add jitsi-key.gpg.key

Next, create a new file that will contain the information for us to add the Jitsi repository.

sudo nano /etc/apt/sources.list.d/jitsi-stable.list

And add:

deb https://download.jitsi.org stable/

Save the changes and close the editor.

So, refresh APT so that the repository information can be loaded.

sudo apt update

And finally, install Jitsi by running:

sudo apt install jitsi-meet
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  ca-certificates-java fontconfig-config fonts-dejavu-core java-common jicofo jitsi-meet-prosody jitsi-meet-web jitsi-meet-web-config jitsi-videobridge2 libasound2
  libasound2-data libavahi-client3 libavahi-common-data libavahi-common3 libcups2 libfontconfig1 libgd3 libjbig0 libjpeg62-turbo liblcms2-2 libnginx-mod-http-auth-pam
  libnginx-mod-http-dav-ext libnginx-mod-http-echo libnginx-mod-http-geoip libnginx-mod-http-image-filter libnginx-mod-http-subs-filter libnginx-mod-http-upstream-fair
  libnginx-mod-http-xslt-filter libnginx-mod-mail libnginx-mod-stream libnspr4 libnss3 libpcsclite1 libtiff5 libwebp6 libx11-6 libx11-data libxau6 libxcb1 libxdmcp6
  libxext6 libxi6 libxpm4 libxrender1 libxslt1.1 libxtst6 lua-bitop lua-expat lua-filesystem lua-sec lua-socket lua5.2 nginx nginx-common nginx-full
  openjdk-11-jre-headless prosody ssl-cert uuid-runtime x11-common
Suggested packages:
  default-jre libasound2-plugins alsa-utils cups-common libgd-tools liblcms2-utils pcscd fcgiwrap nginx-doc libnss-mdns fonts-dejavu-extra fonts-ipafont-gothic
  fonts-ipafont-mincho fonts-wqy-microhei | fonts-wqy-zenhei fonts-indic lua-dbi-mysql lua-dbi-postgresql lua-dbi-sqlite3 lua-zlib openssl-blacklist
Recommended packages:
  jitsi-meet-turnserver | apache2 lua5.2-event
The following NEW packages will be installed:
  ca-certificates-java fontconfig-config fonts-dejavu-core java-common jicofo jitsi-meet jitsi-meet-prosody jitsi-meet-web jitsi-meet-web-config jitsi-videobridge2
  libasound2 libasound2-data libavahi-client3 libavahi-common-data libavahi-common3 libcups2 libfontconfig1 libgd3 libjbig0 libjpeg62-turbo liblcms2-2
  libnginx-mod-http-auth-pam libnginx-mod-http-dav-ext libnginx-mod-http-echo libnginx-mod-http-geoip libnginx-mod-http-image-filter libnginx-mod-http-subs-filter
  libnginx-mod-http-upstream-fair libnginx-mod-http-xslt-filter libnginx-mod-mail libnginx-mod-stream libnspr4 libnss3 libpcsclite1 libtiff5 libwebp6 libx11-6
  libx11-data libxau6 libxcb1 libxdmcp6 libxext6 libxi6 libxpm4 libxrender1 libxslt1.1 libxtst6 lua-bitop lua-expat lua-filesystem lua-sec lua-socket lua5.2 nginx
  nginx-common nginx-full openjdk-11-jre-headless prosody ssl-cert uuid-runtime x11-common
0 upgraded, 61 newly installed, 0 to remove and 25 not upgraded.
Need to get 128 MB of archives.
After this operation, 326 MB of additional disk space will be used.
Do you want to continue? [Y/n]

During the installation, we will be asked to enter the hostname of our server, which can be your domain.

Then you will be asked if you want to generate a new certificate or use an existing one. In this case, I will generate new certificates.

Preparing Jitsi for the first use

By default, Jitsi is very secure but we need access from the web to be secure too and that is why we need to generate TLS certificates. To do this, install the Certbot package.

sudo apt install certbot

Then run a script that provides us with the Jitsi installation where we only need to enter our email address.

sudo /usr/share/jitsi-meet/scripts/install-letsencrypt-cert.sh

In the end, you will see a success message.

Now the next step is to prevent anonymous users from creating rooms. To do this edit the configuration file for your domain.

sudo nano /etc/prosody/conf.avail/your_domain.cfg.lua

Remember to replace your_domain with yours .

And look for the value

 authentication = "anonymous"

And replace it with:

authentication = "internal_plain"

At the end of the same file add the following section:

VirtualHost "guest.your_domain"
    authentication = "anonymous"
    c2s_require_encryption = false

Don’t forget to replace the your_domain value with yours. With this configuration, we will make it so that anonymous users can log in to rooms created by authenticated users.

Save the changes and close the editor.

Now we also need to edit another file to add the host of the guest users.

sudo nano /etc/jitsi/meet/your_domain-config.js

And change the line

// anonymousdomain: 'guest.example.com',

To

anonymousdomain: 'guest.your_domain',

Again, save the changes and close the editor.

Finally, edit the /etc/jitsi/jicofo/sip-communicator.properties file.

sudo nano /etc/jitsi/jicofo/sip-communicator.properties

And add the following line:

org.jitsi.jicofo.auth.URL=XMPP:your_domain

Replacing your_domain with yours.

Save the changes and close the editor.

Now create a new user who will be able to create new rooms:

sudo prosodyctl register [user] [your_domain] [password]

Replace the fields with the values you prefer.

To apply all changes, restart the services.

sudo systemctl restart prosody.service
sudo systemctl restart jicofo.service
sudo systemctl restart jitsi-videobridge2.service
sudo systemctl restart nginx

And you can visit https://your-domain and enjoy Jitsi.

Conclusion

Jitsi is another wonderful application because it allows us to deploy a secure and stable video call server. This makes it ideal in professional environments.

Website

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Well, after several weeks of work comes the third update of Debian branch 10. As it is expected it does not come loaded with many new features. However, it provides some updated packages, as well as many bug fixes and security patches.

On the other hand, from the same Debian web site we are warned that this is not a new version in itself, but only an update to it. So, do not have to reinstall the whole system.

For example, they have been updated to the last maintenance versions to PostgreSQL 11, Linux 4.19, MariaDB 10.3, Postfix and the desktop environments that Debian has.

Similarly, many bugs affecting many key packages such as intel-microcode, OpenJDK, qemu, Thunderbird, xen, Firefox and many more have been resolved.

Also, some packages have been removed from the distribution media. Some of them are firetray, koji, and radare2.

How to upgrade to Debian 10.3?

In case you have Debian 10 installed, just upgrade your entire system:

:~$ sudo apt upgrade

So, if you are going to do an installation from scratch, you can go to the Debian website. Then, you can download some of the available ISO images.

So as I told you before it is a version of Debian that improves the existing making it more stable and secure. Also, it is necessary to say that Debian 10 is at a very mature point of development. This makes it a very appealing option for your computer or server.

If you want to know more about Debian 10.3, please read the release notes.

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Install wkhtmltopdf on Ubuntu 19.04 / Debian 10

Visit the below link to Download the latest precompiled binary from the release page.

Download latest version of wkhtmltopdf

Step 1: Install wkhtmltopdf on Ubuntu 19.04

sudo apt update
 sudo apt -y install wget
wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.5/wkhtmltox_0.12.5-1.bionic_amd64.deb
 sudo dpkg -i wkhtmltox_0.12.5-1.bionic_amd64.deb
 sudo apt -f install

If you get error for the fonts try the following command

sudo apt-get update -y
sudo apt-get install -y xfonts-75dpi

You can see the following results upon successful Installation.

(Reading database … 172496 files and directories currently installed.)
 Preparing to unpack wkhtmltox_0.12.5-1.bionic_amd64.deb …
 Unpacking wkhtmltox (1:0.12.5-1.bionic) over (1:0.12.5-1.bionic) …
 Setting up wkhtmltox (1:0.12.5-1.bionic) …
 Processing triggers for man-db (2.8.3-2ubuntu0.1) …

Step 2: Install wkhtmltopdf on Debian 10 / Debian 9

To Install on Debian 9 type the following command

sudo apt update
sudo apt -y install wget
wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.5/wkhtmltox_0.12.5-1.stretch_amd64.deb
sudo dpkg -i wkhtmltox_0.12.5-1.stretch_amd64.deb
sudo apt -f install

Make sure to check the Installed version to verify your Installation.

$ wkhtmltopdf --version
wkhtmltopdf 0.12.5 (with patched qt)


$ wkhtmltoimage --version
wkhtmltoimage 0.12.5 (with patched qt)

Step 3: How to Use wkhtmltopdf on Ubuntu / Debian

Run the given command to convert a web page to PDF format.

$  wkhtmltopdf  <webpage> <destination-pdf-file>

Look at the example:

wkhtmltopdf https://osradar.com osradar.pdf

Execution Output:

As you can see the results, a pdf file is being created and you can now view the contents.

$ file osradar.pdf

You can convert to image using the same syntax as:

$  wkhtmltoimage  https://osradar.com osradar.png

Congratulations! You’ve learned how we can convert our web pages to pdf and Image format using wkhtmltopdf & wkhtmltoimage tool.
If you’ve any queries regarding this tutorial, feel free to ask!

The post How To Install wkhtmltopdf and wkhtmltoimage on Ubuntu 19.04 / Debian 10 appeared first on Linux Windows and android Tutorials.

Debian 10 with Buster’s codename will be the new stable version of Debian. It is not known exactly when it will be released, but it is a good bet to say that it could be released between June and July. So let’s see some of what Buster will bring us.

Debian 10 and the new artwork

Debian 10 has a lot of news, but it’s good to point out that it will have new artwork that will make the distribution refresh a little.

The theme in question is called “futurePrototype” and was chosen by the community as the default theme stands out for its soft blue color that integrates very well with past themes.

Debian 10: The Features

What’s new in Debian 10 is quite a lot, and more than anything else, package and desktop updates everywhere. In the case of desktop environments Buster will bring us the following:

• GNOME 3.32
• KDE Plasma 5.14
• Cinnamon 3.8
• LXDE
• LXQt 0.14
• MATE 1.20
• Xfce 4.12

But they are not the only ones, we will also have some window managers known as Openbox or Fluxbox.

On the other hand, Debian supports multiple architectures as they are:

• 32 bits PC (i386) and 64 bits PC (amd64)
• 64 bits ARM (arm64)
• ARM EABI (armel)
• ARMv7 (EABI hard-float ABI, armhf)
• MIPS (mips («big-endian») and mipsel («little-endian»))
• 64 bits MIPS (mips64el)
• 64 bits PowerPC (ppc64el)
• IBM System z (s390x)

So not in vain does Debian make itself known as the universal Linux distribution. Because it is very versatile and can be installed on many different architectures.

Some security features

In the security section Debian 10 Buster brings with it many news and updates of critical packages. The Linux Kernel will be the 4.19 patched by the Debian community to support a lot of recent hardware.

Also, Debian buster has AppArmor enabled by default. The default AppArmor package ships with AppArmor profiles for several programs. So it is an important step to improve system security and stability.

In the same way, Debian 10 will have in its repositories PHP 7.3, Apache 2.4.38 and Nginx 1.14, with this having a Web server will be easy and very stable. But if we add to this MariaDB 10.3 and PostgreSQL 11 then the combinations are complete.

Python has also been updated to version 3.7.2 that will make your applications take better advantage of Python 3 features. And OpenJDK 11 will also be present. Remember that this version of OpenJDK is LTS so its use with Debian 10 will allow you to develop Java applications efficiently.

As you can read Debian 10 will be an important release this year.

Conclusion

Debian is characterized by being a very stable distribution. Thanks to it, it is possible to have servers and production equipment quite reliable and with a large number of packages available. The release of Debian 10 that will bring much important news that will surely make Debian the most commented of this.

Don’t worry that here we will support Debian 10 as always. With many tutorials and news about it.

Please share this post with your friends.

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