Disable secure boot in the VM menu, that'll fix it.



from: 
https://community.spiceworks.com/topic/1719453-hyper-v-gen-2-vm-unable-to-boot-from-iso-file-to-install-os

 


httpRuntime 加 maxRequestLength 沒作用, 請到 system.webServer 設定 maxAllowedContentLength

<system.webServer>

...

<security>

<requestFiltering>

    <!--1073741824 ==> 1GB-->

    <requestLimits maxAllowedContentLength="1073741824" />

</requestFiltering>

</security>

...

</system.webServer>

 

create database booking (可以用 Workbench, root 或 sa 登入)

cd "C:\Program Files\MySQL\MySQL Server 8.0\bin"

mysqldump -u root -p booking < d:\MySQLBackup\yours.bak

mysql -u sa -p booking < d:\MySQLBackup\yours.bak

建立使用者 (可以用 Workbench, root 或 sa 登入)

grant all privileges on booking.* to 'booking'@'%'; (可以用 Workbench, root 或 sa 登入)

試說明以下程式碼的功用, 以及可改進的部份.

        string EndDate = Request["EndDate"];



        DataTable qtyControls = U2.SQL.DTFromSQL("Select YA00, PD00 from QtyControl Where EndDate > '" + EndDate + "' and SoldQty >= InitQty");



        var values = qtyControls.AsEnumerable().Select(r => "('" + r.Field<string>("YA00") + "','" + r.Field<string>("PD00") + "')").ToList();



        var sqls = new List<string>();

        sqls.Add("Delete StopSaleYAP;");



        int start = 0;        

        while(start < values.Count)

        {

            var end = start + 999;

            if(end > values.Count - 1)

            {

                end = values.Count;

            }



            sqls.Add("insert into StopSaleYAP(YA00, PD00) Values" + string.Join(",", values.GetRange(start, end)) + ";");



            start = end + 1;

        }



        U2.SQL.ExecuteSQL(string.Join("\r\n", sqls));

        public static bool IsErrorOrder(Order.Input.CheckValidOrder dto)

        {

            if (dto.OrderNos == null || dto.OrderNos.Count == 0)

            {

                return false;

            }



            var orderCount = dto.OrderNos.Count();

            var orders = NpreoOrderMain.GetList(dto.OrderNos);

            if (orders.Count != orderCount || !dto.OrderNos.Any(x => orders.Select(o => o.Order_No).Contains(x)))

            {

                return true;

            }

            return false;

        }

        var fu = Request.Files[0];

        fu.SaveAs(Server.MapPath("UploadFiles/") + fu.FileName);

--

基本題:

1. 對 Linq 熟嗎.

2. 對 ASP.Net 的 Cache  熟悉嗎.

3. 用過什麼 ORM, 試說明優缺點.

4. 試說明 MVC 的架構.

資安相關問題:

1. 試說明 SQL Injection

2. 試說明 Cross Site Injection.

3. 上傳檔案要注意的事項.

4. 試說明 cookie 的安全設定 ? same site, secure, http only.


前端相關加分題:

1. jQuery 或 Vue 熟悉嗎 ?

2. 試說明 RWD

3. 試說明 bootstrap

進階問題:

1. 試說明 Reflection

2. 試說明 Dependency Injection

3.  試說明 singleton vs static

4. 試單有兩個欄位 Id, Status (付款待確認: 1.1;  已付款: 2,  訂單已出貨: 3; 訂單取消中: 5; )
狀態 1.1 和 狀態 2 的訂單可取消，取消後改為狀態 5

客人要取消訂單，訂單編號為 123, 試說明程式執行的過程。

1. 安裝 Failover-Clustering

Install-WindowsFeature Failover-Clustering –IncludeManagementTools

2. 建立 Cluster 用的帳號, 並加入管理員群組 (記得要換密碼

net user /add clustadm Sup33P@ssw0Rd!

net localgroup administrators clustadm /add

參考以下四篇文章, 有些地方可能要改一下, 有空來做一份中文版的.


https://www.mssqltips.com/sqlservertip/4951/deploy-a-windows-server-2016-failover-cluster-without-active-directory-part-1/
https://www.mssqltips.com/sqlservertip/4962/deploy-a-windows-server-2016-failover-cluster-without-active-directory--part-2/

https://www.mssqltips.com/sqlservertip/4991/implement-a-sql-server-2016-availability-group-without-active-directory-part-1/
https://www.mssqltips.com/sqlservertip/4996/implement-a-sql-server-2016-availability-group-without-active-directory-part-2/


這個也可以參考, 有很多指令碼, 可以省不少時間:

http://woshub.com/workgroup-failover-cluster-windows-server-2016/

1. 在這裡下載 https://certbot.eff.org/lets-encrypt/windows-other.html

2. 安裝下載的程式

3. 用 cmd (管理員模式, 執行以下指令)
certbot certonly --manual --agree-tos -d "*.bike.idv.tw" -d "bike.idv.tw" --email bikehsu@gmail.com --preferred-challenges dns --manual-public-ip-logging-ok --server https://acme-v02.api.letsencrypt.org/directory

4. 會需要在 DNS Server 上建立一個 TXT 記錄.

5. 下載的格式是 pem, 可以在這裡轉成 IIS 用的 pfx 格式. https://decoder.link/converter, 轉檔時, "不"要用 fullchain

6. 用這個指令可以顯示所有 certbot 申請的憑証 "certbot certificates"

7. "certbot renew" 可以 renew  certificate, 需要測試.

1. 參考這裡設定第一個網站:
https://blog.johnwu.cc/article/centos-asp-net-core-neginx.html
注意, 文章中有一個錯誤:
/etc/nginx/conf.d/my-website.conf 的第 27 行, 應該是 include /etc/nginx/conf.d/default_proxy_settings;

2.  因為要避開 5000 port, 所以修改第二個網站的 appsettings.json, 讓第二個網站開在 5002 port, 如下.

{

"Logging": {

    "LogLevel": {

     "Default": "Information",

     "Microsoft": "Warning",

     "Microsoft.Hosting.Lifetime": "Information"

    }

},

"Kestrel": {

        "EndPoints": {

                "Http": {

                        "Url": "http://localhost:5002"

                }

        }

},

"AllowedHosts": "*"

}

3. 新增 /etc/nginx/conf.d/my-website2.conf, 要注意
    A. portal2
    B. server localhost:5002
    C. server_name coretest2.bike.idv.tw
    當然 SSL 憑証的檔名也要記得改.

upstream portal2 {

    # localhost:5000 改成 ASP.NET Core 所監聽的 Port

    server localhost:5002;

}



server {

    # 只要是透過這些 Domain 連 HTTP 80 Port，都會轉送封包到 ASP.NET Core

    listen 80;

    # 可透過空白區分，綁定多個 Domain

    server_name coretest2.bike.idv.tw;

    location / {

        proxy_pass http://portal2/;

        include /etc/nginx/conf.d/default_proxy_settings;

    }

}



# 用 HTTPS 必須要有 SSL 憑證，如果沒有要綁定 SSL 可以把下面整段移除

server {

    # 只要是透過這些 Domain 連 HTTPS 443 Port，都會轉送封包到 ASP.NET Core

    listen 443 ssl;

    server_name coretest2.bike.idv.tw;

    ssl_certificate /etc/nginx/ssl/coretest2.bike.idv.tw.crt;

    ssl_certificate_key /etc/nginx/ssl/coretest2.bike.idv.tw.key;



    location / {

        proxy_pass http://portal2/;

        include /etc/nginx/conf.d/default_proxy_settings;

    }

}

改完後就可以用了.

以下是 https://blog.johnwu.cc/article/centos-asp-net-core-neginx.html 抄過來的一些檔案, 作為備份:

setup-aspnet-core.sh

#!/bin/bash



main() {

    sudo yum -y install epel-release

    sudo yum -y update



    install_nginx

    install_dotnet



    sudo firewall-cmd --add-service=http --permanent

    sudo firewall-cmd --add-service=https --permanent

    sudo firewall-cmd --reload

}



install_nginx() {

    echo "###################################"

    echo "########## Install Nginx ##########"

    echo "###################################"

    sudo yum -y install httpd-tools nginx

    sudo setsebool -P httpd_can_network_connect on

    sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config

    sudo setenforce 0

    sudo systemctl enable nginx

    sudo systemctl restart nginx

}



install_dotnet() {

    echo "###########################################"

    echo "########## Install .NET Core 2.2 ##########"

    echo "###########################################"

    sudo rpm -Uvh https://packages.microsoft.com/config/rhel/7/packages-microsoft-prod.rpm

    sudo yum -y install aspnetcore-runtime-2.2

}



main "$@"

用以下指令執行:

sudo sh setup-aspnet-core.sh

/etc/systemd/system/my-website.service, (/bin/dotnet 有可能是 /usr/bin/dotnet)

[Unit]

# Description=<此服務的摘要說明>

Description=MyWebsite



[Service]

# WorkingDirectory=<ASP.NET Core 專案目錄>

WorkingDirectory=/usr/share/my-website



# ExecStart=/bin/dotnet <ASP.NET Core 起始 dll>

ExecStart=/bin/dotnet MyWebsite.dll



# 啟動若失敗，就重啟到成功為止

Restart=always

# 重啟的間隔秒數

RestartSec=10



# 設定環境變數，注入給 ASP.NET Core 用

Environment=ASPNETCORE_ENVIRONMENT=Production

Environment=DOTNET_PRINT_TELEMETRY_MESSAGE=false



[Install]

WantedBy=multi-user.target

服務相關指令：

# 開啟，開機自動啟動服務

systemctl enable my-website.service



# 關閉，開機自動啟動服務

systemctl disable my-website.service



# 啟動服務

systemctl start my-website.service



# 重啟服務

systemctl restart my-website.service



# 停止服務

systemctl stop my-website.service



# 查看服務狀態

systemctl status my-website.service

/etc/nginx/conf.d/default_proxy_settings

proxy_http_version 1.1;

proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection $http_connection;

proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-Host $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header X-Forwarded-Proto $scheme;

proxy_cache_bypass $http_upgrade;

/etc/nginx/conf.d/my-website.conf

upstream portal {

    # localhost:5000 改成 ASP.NET Core 所監聽的 Port

    server localhost:5000;

}



server {

    # 只要是透過這些 Domain 連 HTTP 80 Port，都會轉送封包到 ASP.NET Core

    listen 80;

    # 可透過空白區分，綁定多個 Domain

    server_name demo.johnwu.cc example.johnwu.cc;

    location / {

        proxy_pass http://portal/;

        include /etc/nginx/conf.d/default_proxy_settings;

    }

}



# 用 HTTPS 必須要有 SSL 憑證，如果沒有要綁定 SSL 可以把下面整段移除

server {

    # 只要是透過這些 Domain 連 HTTPS 443 Port，都會轉送封包到 ASP.NET Core

    listen 443 ssl;

    server_name demo.johnwu.cc;

    ssl_certificate /etc/nginx/ssl/demo.johnwu.cc_bundle.crt;

    ssl_certificate_key /etc/nginx/ssl/demo.johnwu.cc.key;



    location / {

        proxy_pass http://portal/;

        include /etc/nginx/conf.d/default_proxy_settings;

    }

}

Nginx 重新啟動:

# 檢查 Nginx 的設定是否有誤

nginx -t



# 若沒有錯誤，即可套用

nginx -s reload

因為希望大家 commit 程式都要寫一下訊息紀錄
但有人就是手快就 commit 了 ，事後要改卻跳出訊息告知不可以修改
查一下發現不是SVN設定檔加個勾勾就可以處理的，是要去 hooks 設定寫一段指令碼才可以
要去server端  去 Repository > 選 Properties > Hooks > 編輯 Pre-reversion property change hook

輸入以下指令

rem Only allow log messages to be changed.

if "%4" == "svn:log" exit 0

echo Property '%4' cannot be changed >&2

exit 1

  
 
 
 
 

從A主機DB直接讀取B主機的DB，使用圖形介面一直無法設定成功，改用SQL語法一下就搞定了。

操作界面： 



T-SQL:

 USE [master]

GO

EXEC master.dbo.sp_addlinkedserver

     @server = N'連線名稱',

     @srvproduct=N'SQLNCLI',

     @provider=N'SQLOLEDB',

     @datasrc=N'192.168.8.198\SQL2008'

GO



USE [master]

GO

EXEC master.dbo.sp_addlinkedsrvlogin

    @rmtsrvname = N'連線名稱',

    @locallogin = NULL ,

    @useself = N'False',

    @rmtuser = N'資料庫登入帳號',

    @rmtpassword = N'資料庫連線密碼'

GO

 

IIS 7.0 之後 
用 HttpContext.Current.Request.UserHostAddress 抓的IP會是 
類似 fe80::b148:cddc:81cd:fd10%2 
這樣的IPv6 位址
如果要抓 IPv4 要特別改寫

參考
https://dotblogs.com.tw/hunterpo/2011/03/21/21991


HttpContext.Current.Request.UserHostAddress


暫時的替代方法
public static string GetClientIPv4() { string ipv4 = String.Empty; foreach (IPAddress ip in Dns.GetHostAddresses(GetClientIP())) { if (ip.AddressFamily.ToString() == "InterNetwork") { ipv4 = ip.ToString(); break; } } if (ipv4 != String.Empty) { return ipv4; } // 原作使用 Dns.GetHostName 方法取回的是 Server 端資訊，非 Client 端。 // 改寫為利用 Dns.GetHostEntry 方法，由獲取的 IPv6 位址反查 DNS 紀錄， // 再逐一判斷何者屬 IPv4 協定，即可轉為 IPv4 位址。 foreach (IPAddress ip in Dns.GetHostEntry(GetClientIP()).AddressList) //foreach (IPAddress ip in Dns.GetHostAddresses(Dns.GetHostName())) { if (ip.AddressFamily.ToString() == "InterNetwork") { ipv4 = ip.ToString(); break; } } return ipv4; } /// <summary> /// 取得客戶端主機位址 /// </summary> public static string GetClientIP() { if (null == HttpContext.Current.Request.ServerVariables["HTTP_VIA"]) { return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } else { return HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; } }