Even though HyperTerminal is not a part of Windows 10, the Windows 10 operating. Move the mouse pointer to the lower left corner of the screen, right-click, and. Do I need to reinstall Windows after replacing hard drive?
This site uses cookies to store data. By continuing to use the site, you consent to the processing of these files. This will display a list of all USB devices connected to your computer such as keyboards, mouse, printers, disk drives, network adapters, etc,.
The lsblkk stands for list block devices. It reports information about CPU, RAM, keyboard, mouse, graphics card, sound, storage, network interface, disk, partition, bios, and bridge, etc,. It shows detailed report of disk space usage on the Linux system.
It displays the amount of total disk space, available disk space, used disk space, disk used percentage and mounted filesystem on the Linux system. It allows us to view, create, resize, delete, move and copy the partitions. One of these may be an extended partition and it holds multiple logical partitions. Systool is a tool that uses APIs provided by libsysfs to gather information, view system device information by bus, class, and topology.
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This site uses Akismet to reduce spam. Learn how your comment data is processed. How to View Linux System Information To know only the system name, you can use the uname command without any switch that will print system information or the uname -s command will print the kernel name of your system. If you liked this article, then do subscribe to email alerts for Linux tutorials. If you have any questions or doubts? Related Posts. Can i use these commands to check server or other computers remotely??
How can we get kernel component related information in linux? What are the commands? You left out networking components ifconfig -a netstat -a Reply. Larry Okay, thanks for mentioning. Moltke You can use: 1. Kerhep I suppose you mean checking PC hardware info from a Linux machine, we have not come across any specific tools for that purpose, however, you can use network monitoring tools such as Nagios, Zabbix, Monitorix and many more. Those are considered comments. Any line in the dhclient.
Often the timeout setting is the setting that most Linux administrators need to change. That setting controls how long the client device waits for responses.
In the real world, there are places we know by their specific address and places we know by their generalized names. Read on and learn how it works and how to configure it for yourself. The hosts config file is a plain-text network configuration file that works like a static, mini domain name system DNS for that device.
Hosts config files also exist on Windows and macOS. The fundamental purpose of the hosts config file is to map domain names or hostnames to IP addresses. Because computers check the hosts file for translation from URLs to IP addresses before contacting a DNS server, configuring the hosts conf can redirect traffic directed at certain places to preferred IP addresses or block websites from devices.
Understanding how the hosts config file works requires an understanding of domain name service DNS. DNS is like an address book for the internet. It matches hostnames with IP addresses. When you type www. DNS isn't only used for websites, though. DNS can be used for any networking environment — most importantly private business networks.
DNS is often used to translate server names with IP addresses. For instance, you might have a network-attached storage NAS device in your home or business. Each computer in your home or business can use that URL to connect to it, but those computers need a way of knowing the IP address for that device. The first entry is always the IP address. The third entry is the alias. You may not need an alias depending on your configuration, but each entry must always have an IP address as well as the hostname.
Each entry can only contain alpha-numeric characters, periods, and hyphens. Any other characters are considered illegal characters. If you use the hash sign at the beginning of an entry in the hosts file, that marks that entry as a comment. Comments are ignored by the system, so you can use any characters after that hash sign for your comment. It's important to note that if you make any changes to the hosts file, you must either restart the networking services in Linux or reboot the computer before those changes take effect.
Because hosts files are a mini DNS for the computer, you can use them for all sorts of things. For instance, if you want to access a specific IP address on your network, but don't want the hostname available for everyone to use, you can add an entry in the hosts file so only that computer can access the hostname of a computer.
Hosts files are commonly used for other things like ad-blocking as well. If you know the hostname of a popular ad network, you can add an entry to the hosts config file in your computer to match that hostname with your local loopback IP address Since the computer looks at the hosts file before a DNS server, that ad network won't resolve, and thus, your computer won't receive ads from that ad network.
Imagine all the services you use in your normal, everyday life. You might struggle to name and explain each one. A computer can struggle with all the utilities, applications and processes it has too.
Fortunately, the nsswitch config file helps a device find its apps and send data to each one. And when you want to edit the core behavior of your Linux operating system, you can manually configure your nsswitch config file. It stands for Name Service Switch. If DNS and a networking switch had a baby, it would be the Nsswitch. The Name Switch Service configuration file provides that address translation and forwarding for application information. DNS is like an address book for IP addresses. Networking switches take network traffic and push it in the direction it wants to go.
IP packets have no concept of direction or flow. The network switch listens to that IP packet and gives it a gentle nudge in the direction it needs to go in. The nsswitch is sort of like that but for a bunch of different applications. It's the same service that tells the netmasks services to look at a configuration file before a NIS server, too. It's also the same file that tells the Linux passwd file to look at the configuration file before an LDAP server. Note that not each use mentioned above is a networking service.
For example, the Linux passwd application is used to both set and confirm passwords for user profiles. The Nsswitch conf file deals with non-network applications.
Essentially, the Nsswitch conf file is simple: it tells applications where to look for data. Like most Linux configuration files, the Nsswitch. It's structured by rows and columns. Here's an example of a Nsswitch. That's all there is to the Nsswitch. We left it simple in this example. So, let's explain how these entries work. The first entry is the application or service. This is where the Nsswitch.
It matches the application or service with the information it needs to use. All other entries after that application or service are the data stores for that application or service. Each datastore is an ordered list according to which should be used first. In this case, the passwd application needs to look at its configuration files first. Should those configuration files not have the information it needs, it then moves on to an LDAP service.
Once the application or service finds the data it needs, it stops looking. Otherwise, if the passwd application finds the information it needs in its configuration files, it doesn't also look at the LDAP service.
Of course, that imposes some limitations. What if you need user groups to consult both the local configuration files as well as an LDAP service? That tells the Groups service that even if it finds the information that it needs in its configuration files, consult the LDAP service anyway and then merge the information found in both the configuration files and LDAP service. In most circumstances, you may never touch the Nsswitch. The Linux OS does a good job of configuring this file automatically.
On a rare occasion, if you run into an issue, you may need to manually configure this file to add or change additional resources data stores for applications or services. Though DNS is commonly configured through the networking services in most Linux distributions, another method to add DNS to your Linux system is by manually configuring the resolv conf file. Resolv conf, also known as resolv.
It's a hardcoded file that systems administrators can use to designate nameservers for that specific computer system. The Linux OS is capable of resolving nameserver data in two ways. First, the OS can use nameserver information associated with its networking configuration.
That network configuration information can change depending on which Linux OS is being used e. Second, the Linux OS can use the resolv. If DHCP is enabled and in use, the resolv configuration file can be found and updated with the resolvconf utility. The resolv.
Each line of the configuration file includes the nameserver itself with the IP address for that name server. There are a variety of options available for the resolv. Options should be included at the bottom of the configuration file, preceded by the keyword Options.
Each option flag can then be listed in order and separated by a space. This value is set by the resolv. Nameservers are used in ascending order as listed in the resolv. So, Linux will look at the first entry, then the second entry, and so on. It will only move on to the next entry if the prior nameserver entry's IP address does not resolve.
Your resolv. Each entry in your resolv conf config file should look like this:. The search criteria is not always needed. It's used to tell the system where and how to search for DNS entries. By default, the search criteria can have up to six domain names listed.
These domains are used in ascending order as listed as well. In the example above, the example. The Domain criteria have been deprecated but may still be in use in some systems. The Search criteria now replaces the Domain criteria.
The Domain criteria is still valid to use but can only have one domain listed after it.
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