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  • NAT, the difference between bridging and host only

    NAT, the difference between bridging and host only

    1.nat, the difference between bridging and host-only ​ nat: you can connect to the Internet ​ virtual host-> host-> Internet (the virtual host has a parent-child relationship with the host host (the virtual host does not have autonomy. If there is a problem with the host, the virtual host cannot be carried out with the outside world.

    Shulou · 2022-06-03 03:24
  • What do Linux operators do during their 8-hour working hours?

    What do Linux operators do during their 8-hour working hours?

    As the job of operation and maintenance engineer becomes more and more delicious, more and more people choose it to start their own work career. So do you want to know more about the days of operation and maintenance engineers? How did they spend their day? Editor, I sorted out some self-reports of the operation and maintenance calves from the baidu post bar and Zhihu to see if they were right.

    Shulou · 2022-06-03 03:24
  • Some common uses of Linux entry-level novice commands

    Some common uses of Linux entry-level novice commands

    1. Automatically synchronize the system clock to the NTP server use timedatectl to synchronize the system clock: # timedatectl set-ntp true premise is to install NTP on the system, check whether to install the NTP-related package: # rpm-qa | gre

    Shulou · 2022-06-03 03:24
  • High usage of windows servers leads to network anomalies

    High usage of windows servers leads to network anomalies

    Background windows server access to an external ip + port is not available, but ping and tracert are normal after repeated troubleshooting, excluding security policy filtering, packet loss and other possible causes & solution 1, check the server itself, and find that the memory occupancy rate is very high; 2.

    Shulou · 2022-06-03 03:24
  • Reduce cost by 20%, launch the first GPU availability zone in China

    Reduce cost by 20%, launch the first GPU availability zone in China

    In 2015, UCloud first launched K80-GPU CVM among domestic cloud vendors. Since then, we have launched GPU CVMs such as P40 and V100, customized physical machines, and GPU-based UAI-Train, UAI-Inference, etc.

    Shulou · 2022-06-03 03:24
  • Server-side programming experience (6)-- some practical skills and details about network programming

    Server-side programming experience (6)-- some practical skills and details about network programming

    Over the years, I have come into contact with shaped × × projects and written a lot of code for network programming, from windows to linux. As network programming involves a lot of details and skills, I have always wanted to write an article to summarize my experience and experience in this area. I hope it will be of some help to the newcomers.

    Shulou · 2022-06-03 03:24
  • Deploy Lync Server 2010 Edge Server

    Deploy Lync Server 2010 Edge Server

    Edge computer name LyncedIP address configuration: internal IP:192.168.5.204 mask: 255.255.255.0 gateway: empty DNS: 192.168.5.200 external IP:192.168.6.2 mask: 25

    Shulou · 2022-06-03 03:24
  • Authentication methods in EXCHANGE client access Server (CAS)

    Authentication methods in EXCHANGE client access Server (CAS)

    After the exchange is deployed, the system will automatically establish an IIS service to respond to the corresponding request. The client access server (hereinafter referred to as CAS) is essentially an IIS server, in which a set of sites called "Default web site" is deployed to complete the

    Shulou · 2022-06-03 03:24
  • First acquaintance of Kubernetes (K8s): understanding and definition of various resource objects

    First acquaintance of Kubernetes (K8s): understanding and definition of various resource objects

    First, PodKubernetes assigns a unique IP address to each Pod, which is called Pod IP. Multiple containers in a Pod share the Pod IP address. Kubernetes requires the underlying network to support TCP/ between any two Pod in the cluster.

    Shulou · 2022-06-03 03:24
  • Basic network configuration and shortcut keys and system directory

    Basic network configuration and shortcut keys and system directory

    Linux system network configuration test network connectivity: ping 223.5.5.5 first mileage: modify Nic address information modify nmtui second mileage: restart Nic service centos7: systemctl restar

    Shulou · 2022-06-03 03:23
  • How to deploy blue and green for stateful workloads across different versions of K8S

    How to deploy blue and green for stateful workloads across different versions of K8S

    The ecology of the container is breaking out! Not only is the application layer changing rapidly, but the platform for managing applications, Kubernetes, is also changing rapidly. This presents a problem that must be solved for the Ops team. How can the IT team ensure that an application can run in different versions

    Shulou · 2022-06-03 03:23
  • Thoughts on the use of a CVM

    Thoughts on the use of a CVM

    Well, friends who are free and have no money can consider the free cloud server for their personal experience. It's OK to use it, emmm, pagoda panel is easy to use. To facilitate other products, such as free virtual hosts, free cloud servers, and so on, there are also those who want to build stations at a low cost. You can try and poke me www.

    Shulou · 2022-06-03 03:23
  • Hides the specified column in the address book in Outlook

    Hides the specified column in the address book in Outlook

    Recently received a lot of user feedback, how to hide a column specified in the outlook address book so as not to let the user see the e-mail address column in the address book, such as the following figure: how to achieve it? I consulted an engineer at Microsoft on this question and got an answer at excha

    Shulou · 2022-06-03 03:23
  • Black screen card machine caused by wireless network card driver

    Black screen card machine caused by wireless network card driver

    Today, I came across a problem that I don't like. I don't like it, but it still needs to be solved. In fact, this is a POS machine, in the rush hour, suddenly restarted for no reason, I check the configuration of the computer, solid-state hard disk, 4G memory, what is the problem? Actually, I don't know, because

    Shulou · 2022-06-03 03:23
  • Debian9 Network Settings

    Debian9 Network Settings

    What is enp3s0? the name of the Internet has changed now. For example, eth0,eth2... -> enp0s25,enp3s0. You can confirm the name with the ip command. $ip a (medium or small) 2: enp3s0: mtu 1500 qdisc p

    Shulou · 2022-06-03 03:23
  • Windows Server 2008 R2 uses WDS Services to demonstrate batch installation of operating system

    Windows Server 2008 R2 uses WDS Services to demonstrate batch installation of operating system

    Yesterday I saw a demonstration about WDS deployment in 51cto moments. Referring to the step by step above, I found many problems, among which I encountered a problem when how to capture encapsulated windows server 2003, that is, when making a startup image of winpe.

    Shulou · 2022-06-03 03:23
  • Using pxe dhcp tfcp http kickstart to realize batch deployment of linux system

    Using pxe dhcp tfcp http kickstart to realize batch deployment of linux system

    1. Why to achieve batch deployment using a configured host to batch install other host systems 2. Know what Pxe1 is. Pre-boot execution environment (Preboot eXecution Environment,PXE) is also known as pre-execution environment.

    Shulou · 2022-06-03 03:22
  • What is the impact of the combination of cloud computing and blockchain?

    What is the impact of the combination of cloud computing and blockchain?

    With the rapid development of Internet technology, now gradually entering the era of big data, cloud computing, virtual technology and artificial intelligence, the phenomenon that technology is king is becoming more and more obvious. Nowadays, with the increasing scale and complex structure of the website, the demand for Linux operation and maintenance engineers is becoming more and more urgent, especially for

    Shulou · 2022-06-03 03:22
  • Apache security optimization

    Apache security optimization

    First, what is the hotlink protection system that cannot download the corresponding resources while ensuring that the address is correct, which is affected by the hotlink protection system, so what exactly is the hotlink protection system? Hotlink protection is naturally to prevent hotlink, so let's talk about what is hotlink first. Hotlink means to show something on your own page.

    Shulou · 2022-06-03 03:22
  • Centos 6.6 update time zone and time

    Centos 6.6 update time zone and time

    First, check the current system time zone: [root@1inux ~] # date-RWed, 27 Nov 2019 16:17:13 + 0800 / / + 0800 shows the East eighth Zone adopted by our country if the system

    Shulou · 2022-06-03 03:22