In linux you can capture the network package used by tcpdump sudo install tcpdmp,if you use debian .you can install it with apt install tcpdump 2. capture the newtork package used next command ,the network_interface_name can find by ip command. sudo tcpdump -i netwrok_interface_name -w capture_name.pcap 3. download the capture_name.pcap and opened it with wireshark.
After National Day, two server that install windows server 2016 will shut down every two hours. first,i doubt that the tempurate is too high so the server shut down itself to protect it.so i open the air conditioner. but it is shut down like i don't open the air conditioner. so i check the system log through system event viewer. in the system event viewer.i find the realy reason. the server shutdown because windows 2016 server is evalution version and it is out of date. so it shut down every a period of time. so i need to change it to stand version. the follow step is how to resolve it. open the command line , need administrator privileges. Run the next command DISM /online /Get-CurrentEdition DISM /online /Set-Edition:ServerStandard /ProductKey:WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY /AcceptEula when the command run complete . after restart it .the version will change to stand. then you can active the windows 2016 server too otherwise the evaluation version can not active.
when i installed windows 7 in wmware workstation which running in the windows 11. i find i can't install vmtools.because the install vmare tools menu is gray. after i try,the next is the fix step. remove the flopy driver in the vmware workstation hardware config. after step 1, you will find the install vmtools menu is enabled. but when i installing the vmtools in the windows7. it will occour some error so install vmware tools fail. then , you must install a update for this bug. follow is the update link https://catalog.update.microsoft.com/search.aspx?q=kb4474419 after install the update .reboot the virtual windows 7. then install vmware tools. it is all right.
Sometimes we need use proxy in the windows cmd console. for example pip install some package in the python environment. next is how to set proxy temporary. 1. check if you can visit google in cmd console.if you see the picture ,that's mean you can't visit the google. 2. in the opened cmd console. use the next command to set temporary proxy. set HTTP_PROXY=http://192.168.0.110:3128 set HTTPS_PROXY=http://192.168.0.110:3128 3.then use the next command to check if the temporary proxy is enabled. curl -I www.google.com if you the as shown in the figure below,it is mean the temporary proxy is enabled.
Recently,i want to install ubuntu .So i find the latest version in the ubuntu website. The latest ubuntu version is 24.04. when i install the ubuntu desktop version. I want remote control it from my windows 11.In the latest ubuntu ,it's include remote control services. The next step is how to set up it used to be control by windows11. 1. open the settings,find the "system" and "Remote Desktop" on the right panel. 2.in the opened dialog.enable "Desktop Sharing" and "Remote Control" two options. then set "Username" and "Password" in the Login Details group. Attention password in this is not login ubuntu's password.you can click the eye to see it.and click the pen button to change it. 3.Do all the two steps.you can remote control it from your windows 11. Ubuntu 24.04 default input manage is ibus.after i install some chinese input method.i can not see it in the input sources yet.So i install the fcitx5 on the ubuntu. Next is how to install fcitx5 on the ubuntu 24.04. 1. sudo apt update 2. sudo apt install fcitx5 fcitx5-chinese-addons fcitx5-config-qt fcitx5-configtool fcitx5-chinese-addons includes Pinyin and Shuangpin support. 3. im-config -n fcitx5 Then log out and log back in. Open Fcitx 5 Configuration (fcitx5-configtool) from the application menu. Click "+" to add a new input method. Search for Pinyin (or your preferred Chinese method) and add it.
Sometimes we need the php environment on the windows. Because it is quickly and easily than on the linux. Next is the step on the windows. 1. install wampserver. 2.if you install by default ,when install complete,open the web browser,for example google chrome then visit the localhost http://127.0.0.1 3.on the webpage ,click "Add a virtual Host" under the Tools. 4.on the opened webpage ,text all information that required.In this page the important information is Listen port.In the wapserver ,It is distinguish different virtual host by listen port. 5. listen port in the dropbox from next image.It is very import.it is waste me many times. 6.remember allow listen port for access on the firewall. 7.That's all.have enjoy.
Squid is a very popular proxy server. It is usually running on the Linux. But sometimes we will install it on the Windows because this method is easy and quickly. After install it on the windows. I want to set the cache. Squid have two type cache. Memory cache and Disk cache. Next is demo how to set disk cache on the windows. 1. Right-click the squid icon in the windows tray . 2.Select the "Open Squid Configuration" Menu 3.In the opened "squid.conf" text file, find the "cache_dir" line.Uncomment the line .Then change the default value. for example , you want to save the cache file in the "c:\squid\cache" directory. after changed it like follow. cache_dir aufs C:\Squid\cache 3000 16 256 4. Save it and stop the Squid service through the menu right-click the icon in the tray. 5.Run " squid Terminal " as administator. which usually on the desktop. 6.In the command line. run the next command. squid -z 7.Start Squid services. That's all. Have a enjoy.
When i install Citxix visual desktop on my lan network. I usually used http but not https. But when citrix workspace client upgrade to lastest version. It is not suport http . So i must config it use https instead of http. In my config it . i use microsoft ad cert service. i want to use it to depoly cert file . This step can follow the website.It's desciption very clear. https://www.cnblogs.com/jackadam/p/18214294 In the artile , the important step is follow ,because i pay many time in it. 注意通用名称就是需要证书的web服务的域名
OpenWebUi update so quickly so have to write a post to record it. I deploy it with docker with default set. so this article is show the process in the openWebUI deploied by docker. ssh the server execute the command sudo docker run --rm --volume /var/run/docker.sock:/var/run/docker.sock containrrr/watchtower --run-once open-webui execute the command sudo docker image ls if you find the image list contain two open-webui .and one' tag is <none> then update success. if your server disk space is small like me .you can delete the docker image to save the disk space used the command sudo docker rmi <IMAGE ID>. please notice used the image id to prevent to delete the docker image that just updated image.
本篇文章主要是介绍基于IP的哈希的负载均衡与故障绑定的设定与检查。 一.负载均衡的设定 1.同一台ESXI，上面有两台虚拟机，当然虚拟机的IP地址不相同。这两台虚拟机连接到同一个端口组。该端口组所在的标准虚拟交换机有两个上行链路并且启用了基于IP的哈希的负载均衡与故障绑定的设定。如下图： 2.该端口组也设置了基于IP的哈希的负载均衡与故障绑定。如下图： 3.完成设置后，大概的简略图如下所示： 二.负载均衡的验证 特别声明： 1.必须使用以下的方法验证，才能验证出来。 就是要虚拟机和实体机不同的主机之间互相访问。 2.通过ESXI主机上的监控可以发现，流量分别走了不同的网卡。如下图： 这里要特别注意。 但网络上说，不同的主机同时访问同一台主机的时候，也会走不同的上行链路，我这边没有验证成功。又有说，从外部主机访问内部主机时，是外部主机主导的上行链路的选择，所以我从一台虚拟机去同时访问两台外部主机时，发现也没有分别走不同的上行链路。