The test_cookie is set by and is used to determine if the user's browser supports cookies.Ī cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. Reddit sets this cookie to save the information about a log-on Reddit user, for the purpose of advertisement recommendations and updating the content. These cookies track visitors across websites and collect information to provide customized ads. This cookie can only be read from the domain they are set on and will not track any data while browsing through other sites.Īdvertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The _gads cookie, set by Google, is stored under DoubleClick domain and tracks the number of times users see an advert, measures the success of the campaign and calculates its revenue. ![]() Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. This cookie is installed by Google Analytics. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Since these are quite advanced things and go beyond the scope of the article itself, we won’t address them.Īnalytical cookies are used to understand how visitors interact with the website. You must inform the firewall in order for that to work (if enabled), and if they are installed also SELinux or AppArmor. if you wanted to change the port on which SSH listens you should change the Port option, however that wouldn’t be enough. You now know how to install and modify the basic configuration of OpenSSH server, but there are quite a few things we didn’t mention: e.g. Be sure to reload sshd for the changes to take effectĪlso, changing the port or the address will require a restart of the SSH server. If you’re willing here’s the complete list. This is by no mean a complete list, but shows you the most used (and important) options. PasswordAuthentication yes # This will enforce key-based if set to no and ask passwords if set to yes ![]() PubkeyAuthentication yes # If set to yes enables the use of public key authentication MaxSessions 10 # Defines the maximum number of simultaneous connections MaxAuthTries 6 # Defines the number of tries allowed during login PermitRootLogin no # Allow root to use ssh, it should always be set to no ListenAddress 0.0.0.0 # Listen on the address specified, can use both IPv4 and IPv6 Port 22 # Tells sshd to listen on the portĪddressFamily any # Listen on IPv4 or IPv6 only or both There are many many configuration options, we’ll cover the most important ones. You will find a few files inside this folder, the configuration of the server resides however in the sshd_config file. First you should familiarize with the configuration folder: /etc/ssh. It can indeed work like this, but you should also take a few minutes to configure your new SSH server. By default Ubuntu uses ufw (the uncomplicated firewall) as its default firewall. The last step is to open a port in the firewall. Next step is to start and enable the service. This process will also generate the host key. ![]() ![]() This will install also the client (that is always useful). # apt install -y openssh-server openssh-client There are a few servers that you can choose from, but we’ll focus on OpenSSH, one of the oldest and probably the most popular one. If that is not the case let’s install it. Before starting, remember that whatever you read here is only a tutorial, in real-life scenarios you should watch what you do and think carefully about the consequences.īy default, an SSH server should be already installed on your system.
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