Err unsafe port

Author: k | 2025-04-24

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Is there an existing issue for this? I have searched the existing issuesThis issue exists in the latest npm version I am using the latest npmCurrent Behavior npm ERR! A complete log of this run can be found in: npm ERR! /data/data/com.termux/files/home/.npm/_logs/2021-12-29T06_47_49_945Z-debug-0.log">ERR! /data/data/com.termux/files/home/.npm/_logs/2021-12-29T06_46_34_666Z-debug-0.log ~ $ npm i --unsafe-perm node-red npm ERR! Exit handler never called! npm ERR! This is an error with npm itself. Please report this error at: npm ERR! npm ERR! A complete log of this run can be found in: npm ERR! /data/data/com.termux/files/home/.npm/_logs/2021-12-29T06_47_49_945Z-debug-0.logExpected Behaviorthe package should be installed on termuxSteps To ReproduceIn this environment...With this config...Run '...'See error...Download the Termux app and install it on your android 10 phone and try to installapt updateapt upgradeapt install coreutils nano nodejsnpm i -g --unsafe-perm node-redEnvironmentuname -a Linux localhost 4.9.190-perf-gd805e34 #1 SMP PREEMPT Tue Nov 9 01:08:11 CST 2021 armv8l Android $npm:Node:OS:platform:npm config:;npm config ls ; node bin location = /data/data/com.termux/files/usr/bin/node ; cwd = /data/data/com.termux/files/home ; HOME = /data/data/com.termux/files/home ;Run `npm config ls -l` to show all defaults. ~ $$ npm version { npm: '8.3.0', node: '17.3.0', v8: '9.6.180.15-node.12', uv: '1.42.0', zlib: '1.2.11', brotli: '1.0.9', ares: '1.18.1', modules: '102', nghttp2: '1.45.1', napi: '8', llhttp: '6.0.4', openssl: '1.1.1l', cldr: '40.0', icu: '70.1', tz: '2021a3', unicode: '14.0' }

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تثبيت Oracle Database 23ai Free الاتصال بـ Oracle Database Freeلغة الاستعلامات المركبة (SQL)صيغة سلسلة الاتصال: [username]@[hostname]:[port]/[DB service name] [AS SYSDBA]للاتصال بأول قاعدة بيانات قابلة للتركيب، استخدم: sqlplus sys@localhost:1521/FREEPDB1 as sysdba للاتصال بقاعدة بيانات الحاوية (CDB): استخدم: sqlplus sys@localhost:1521/FREE as sysdba JavaOracleDataSource ods = new OracleDataSource();ods.setURL("jdbc:oracle:thin:@localhost:1521/FREEPDB1"); // jdbc:oracle:thin@[hostname]:[port]/[DB service name]ods.setUser("[Username]");ods.setPassword("[Password]");Connection conn = ods.getConnection(); PreparedStatement stmt = conn.prepareStatement("SELECT 'Hello World!' FROM dual");ResultSet rslt = stmt.executeQuery();while (rslt.next()) { System.out.println(rslt.getString(1));} Pythonimport oracledbconn = oracledb.connect(user="[Username]", password="[Password]", dsn="localhost:1521/FREEPDB1")with conn.cursor() as cur: cur.execute("SELECT 'Hello World!' FROM dual") res = cur.fetchall() print(res) Node.jsconst oracledb = require('oracledb'); async function run() { let connection = await oracledb.getConnection({ user : "[Username]", password : "[Password]", connectString : "localhost:1521/FREEPDB1" // [hostname]:[port]/[DB service name] }); let result = await connection.execute( "SELECT 'Hello World!' FROM dual"); console.log(result.rows[0]);} run(); C#/.NET // Connection string format: User Id=[username];Password=[password];Data Source=[hostname]:[port]/[DB service name]; OracleConnection con = new OracleConnection("User Id=[Username];Password=[Password];Data Source=localhost:1521/FREEPDB1;"); con.Open(); OracleCommand cmd = con.CreateCommand(); cmd.CommandText = "SELECT 'Hello World!' FROM dual"; OracleDataReader reader = cmd.ExecuteReader(); reader.Read(); Console.WriteLine(reader.GetString(0)); PHP// [username], [password], [hostname]:[port]/[DB service name]$c = oci_pconnect("[Username]", "[Password]", "localhost:1521/FREEPDB1");$s = oci_parse($c, "SELECT 'Hello World!' FROM dual");oci_execute($s);oci_fetch_all($s, $res);echo "\n"var_dump($res);echo "\n"; Rubyrequire 'oci8' con = OCI8.new("[Username]", "[Password]", "localhost:1521/FREEPDB1")statement = "SELECT 'Hello World!' FROM dual"cursor = con.parse(statement)cursor.execcursor.fetch do |row|print rowend انطلقpackage main import ( "fmt" "log" "database/sql" _ "github.com/godror/godror") func main() { // connectString format: [hostname]:[port]/[DB service name] dsn := `user="[Username]" password="[Password]" connectString="localhost:1521/FREEPDB1"` db, err := sql.Open("godror", dsn) if err != nil { panic(err) } defer db.Close() rows, err := db.Query("SELECT 'Hello World!' FROM dual") if err != nil { panic(err) } defer rows.Close() var strVal string for rows.Next() { err := rows.Scan(&strVal) if err != nil { log.Fatal(err) } fmt.Println(strVal) } err = rows.Err() if err != nil { log.Fatal(err) } }

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Of the usual "Host: symbolic-name:1234". */ int squares_around_host = 0; /* Headers sent when using POST. */ char *post_content_type, *post_content_length; long post_data_size = 0;#ifdef HAVE_SSL /* initialize ssl_ctx on first run */ if (!ssl_ctx) { uerr_t err = init_ssl (&ssl_ctx); if (err != 0) { switch (err) { case SSLERRCTXCREATE: /* this is fatal */ logprintf (LOG_NOTQUIET, _("Failed to set up an SSL context\n")); ssl_printerrors (); return err; case SSLERRCERTFILE: /* try without certfile */ logprintf (LOG_NOTQUIET, _("Failed to load certificates from %s\n"), opt.sslcertfile); ssl_printerrors (); logprintf (LOG_NOTQUIET, _("Trying without the specified certificate\n")); break; case SSLERRCERTKEY: logprintf (LOG_NOTQUIET, _("Failed to get certificate key from %s\n"), opt.sslcertkey); ssl_printerrors (); logprintf (LOG_NOTQUIET, _("Trying without the specified certificate\n")); break; default: break; } } }#endif /* HAVE_SSL */ if (!(*dt & HEAD_ONLY)) /* If we're doing a GET on the URL, as opposed to just a HEAD, we need to know the local filename so we can save to it. */ assert (*hs->local_file != NULL); authenticate_h = 0; auth_tried_already = 0; inhibit_keep_alive = !opt.http_keep_alive || proxy != NULL; again: /* We need to come back here when the initial attempt to retrieve without authorization header fails. (Expected to happen at least for the Digest authorization scheme.) */ keep_alive = 0; http_keep_alive_1 = http_keep_alive_2 = 0; post_content_type = NULL; post_content_length = NULL; /* Initialize certain elements of struct http_stat. */ hs->len = 0L; hs->contlen = -1; hs->res = -1; hs->newloc = NULL; hs->remote_time = NULL; hs->error = NULL; /* If we're using a proxy, we will be connecting to the proxy server. */ conn = proxy ? proxy : u; /* First: establish the connection. */ if (inhibit_keep_alive ||#ifndef HAVE_SSL !persistent_available_p (conn->host, conn->port)#else !persistent_available_p (conn->host, conn->port, u->scheme == SCHEME_HTTPS)#endif /* HAVE_SSL */ ) { struct address_list *al = lookup_host (conn->host, 0); if (!al) return HOSTERR;. ERR UNSAFE PORT problem in Firefox [Solved]network.security.ports.banned.override

Fix ERR UNSAFE PORT Error On Google Chrome

Experience the next generation of database innovation with Oracle Database 23ai. Designed to simplify development for AI, microservices, graph, document, spatial, and relational applications, this converged database platform offers everything you need in one powerful solution. Even better, you can jump right in at no cost—Oracle Database 23ai Free is available for anyone who wants to get started building modern, data-driven applications. Whether you choose our commercial product in the cloud or on-premises (see availability list) or opt for the free edition, you’ll have all the tools you need to create the future of data management. Oracle Database 23ai Free Platforms Connecting to Oracle Database FreeSQLConnect string format: [username]@[hostname]:[port]/[DB service name] [AS SYSDBA]To connect to the first Pluggable Database (PDB) use: sqlplus sys@localhost:1521/FREEPDB1 as sysdba To connect to the Container Database (CDB) use: sqlplus sys@localhost:1521/FREE as sysdba JavaOracleDataSource ods = new OracleDataSource();ods.setURL("jdbc:oracle:thin:@localhost:1521/FREEPDB1"); // jdbc:oracle:thin@[hostname]:[port]/[DB service name]ods.setUser("[Username]");ods.setPassword("[Password]");Connection conn = ods.getConnection(); PreparedStatement stmt = conn.prepareStatement("SELECT 'Hello World!' FROM dual");ResultSet rslt = stmt.executeQuery();while (rslt.next()) { System.out.println(rslt.getString(1));} Pythonimport oracledbconn = oracledb.connect(user="[Username]", password="[Password]", dsn="localhost:1521/FREEPDB1")with conn.cursor() as cur: cur.execute("SELECT 'Hello World!' FROM dual") res = cur.fetchall() print(res) Node.jsconst oracledb = require('oracledb'); async function run() { let connection = await oracledb.getConnection({ user : "[Username]", password : "[Password]", connectString : "localhost:1521/FREEPDB1" // [hostname]:[port]/[DB service name] }); let result = await connection.execute( "SELECT 'Hello World!' FROM dual"); console.log(result.rows[0]);} run(); C#/.NET // Connection string format: User Id=[username];Password=[password];Data Source=[hostname]:[port]/[DB service name]; OracleConnection con = new OracleConnection("User Id=[Username];Password=[Password];Data Source=localhost:1521/FREEPDB1;"); con.Open(); OracleCommand cmd = con.CreateCommand(); cmd.CommandText = "SELECT 'Hello World!' FROM dual"; OracleDataReader reader = cmd.ExecuteReader(); reader.Read(); Console.WriteLine(reader.GetString(0)); PHP// [username], [password], [hostname]:[port]/[DB service name]$c = oci_pconnect("[Username]", "[Password]", "localhost:1521/FREEPDB1");$s = oci_parse($c, "SELECT 'Hello World!' FROM dual");oci_execute($s);oci_fetch_all($s, $res);echo "\n"var_dump($res);echo "\n"; Rubyrequire 'oci8' con = OCI8.new("[Username]", "[Password]", "localhost:1521/FREEPDB1")statement = "SELECT 'Hello World!' FROM dual"cursor = con.parse(statement)cursor.execcursor.fetch do |row|print rowend Gopackage main import ( "fmt" "log" "database/sql" _ "github.com/godror/godror") func main() { // connectString format: [hostname]:[port]/[DB service name] dsn := `user="[Username]" password="[Password]" connectString="localhost:1521/FREEPDB1"` db, err := sql.Open("godror", dsn) if err != nil { panic(err) } defer db.Close() rows, err := db.Query("SELECT 'Hello World!' FROM dual") if err != nil { panic(err) } defer rows.Close() var strVal string for rows.Next() { err := rows.Scan(&strVal) if err != nil { log.Fatal(err) } fmt.Println(strVal) } err = rows.Err() if err != nil { log.Fatal(err) } }

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Switch(config)# interface ethernet 2/1 Configures the interface type and location. Step 3 switch(config-if)# shutdown Example: switch(config-if)# shutdown Shuts down or disconnects the affected ports. After disconnecting the affected ports, locate every switch in the redundant paths using your network topology diagram. Step 4 switch(config-if)# show spanning-tree vlan vlan-id Example: switch(config-if)# show spanning-tree vlan 9VLAN0009 Spanning tree enabled protocol rstp Root ID Priority 32777'' Address 0018.bad7.db15'' Cost 4... Verifies that the switch lists the same STP root bridge as the other nonaffected switches. Step 5 (Optional) switch(config-if)# show spanning-tree interface interface-type slot/port detail Example: switch(config-if)# show spanning-tree interface ethernet 3/1 detail Port 385 (Ethernet3/1) of VLAN0001 is root forwarding Port path cost 4, Port priority 128, Port Identifier 128.385 Designated root has priority 32769, address 0018.bad7.db15 Designated bridge has priority 32769, address 0018.bad7.db15 Designated port id is 128.385, designated path cost 0 Timers: message age 16, forward delay 0, hold 0 Number of transitions to forwarding state: 1 The port type is network by default Link type is point-to-point by default BPDU: sent 1265, received 1269 (Optional) Verifies that the root port and alternate ports are regularly receiving BPDUs. Step 6 (Optional) switch(config-if)# show interface counters errors Example: switch(config-if)# show interface counters errors --------------------------------------------------------------Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscards--------------------------------------------------------------mgmt0 -- -- -- -- -- --Eth1/1 0 0 0 0 0 0Eth1/2 0 0 0 0 0 0Eth1/3 0 0 0 0 0 0Eth1/4 0 0 0 0 0 0Eth1/5 0 0 0 0 0 0Eth1/6 0 0 0 0 0 0Eth1/7 0 0 0 0 0 0Eth1/8 0 0 0 0 0 0 (Optional) Checks the hardware packet statistic (error drop) counters. Example This example shows that the designated port is regularly sending BPDUs: switch# show spanning-tree interface ethernet 3/1 detail Port 385 (Ethernet3/1) of VLAN0001 is root forwarding Port path cost 4, Port priority 128, Port Identifier 128.385 Designated root has priority 32769, address 0018.bad7.db15 Designated bridge has priority 32769, address 0018.bad7.db15 Designated port id is 128.385, designated path cost 0 Timers: message age 16, forward delay 0, hold 0 Number of transitions to forwarding state: 1 The port type is network by default Link type is point-to-point by default BPDU: sent 1265, received 1269 This example shows how to check the hardware packet statistic counters for a possible BPDU error drop: switch# show interface counters errors --------------------------------------------------------------Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscards--------------------------------------------------------------mgmt0 -- -- -- -- -- --Eth1/1 0 0 0 0 0 0Eth1/2 0 0 0 0 0 0Eth1/3 0 0 0 0 0 0Eth1/4 0 0 0 0 0 0Eth1/5 0 0 0 0 0 0Eth1/6 0 0 0 0 0 0Eth1/7 0 0 0 0 0 0Eth1/8 0 0 0 0 0 0 Troubleshooting Excessive Packet Flooding Unstable STP topology changes can trigger excessive packet flooding in your STP network. With Rapid STP or Multiple STP (MST), a change of the port's state to forwarding, as well as the role change from designated to root, can trigger a topology change. Rapid STP immediately flushes

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Ntp-timeInstallationWith npm:With yarn:Methods and usageClientTo instantiate an NTP Client you just have to require the client class from the module and then instantiate it inside your code. To get the time you must use the syncTime method.client.js console.log(time)) // time is the whole NTP packet .catch(console.log);">const NTP = require('ntp-time').Client;const client = new NTP('a.st1.ntp.br', 123, { timeout: 5000 });async function sync() { try { await client.syncTime(); } catch (err) { console.log(err); }}sync();// Or using .thenclient .syncTime() .then(time => console.log(time)) // time is the whole NTP packet .catch(console.log);ServerTo put a server up, you must require the server class from the ntp-time module, pass a request callback to it and use the listen method, with a port and an callback as an argument. Inside the request callback you can manipulate the message the way you want.server.js { console.log('Server message:', message); message.transmitTimestamp = Math.floor(Date.now() / 1000); response(message);});// Check if node has the necessary permissions// to listen on ports less than 1024// err => { if (err) throw err; console.log('Server listening');});">const NTPServer = require('ntp-time').Server;const server = new NTPServer();// Define your custom handler for requestsserver.handle((message, response) => { console.log('Server message:', message); message.transmitTimestamp = Math.floor(Date.now() / 1000); response(message);});// Check if node has the necessary permissions// to listen on ports less than 1024// err => { if (err) throw err; console.log('Server listening');});For more didatic code, go to the examples page.

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Variables func DecodePeerAddress(x string) string func RegisterFlags(c *Config) type Config func NewConfig() *Config type DHT func New(config *Config) (node *DHT, err error) func (d *DHT) AddNode(addr string) func (d *DHT) PeersRequest(ih string, announce bool) func (d *DHT) PeersRequestPort(ih string, announce bool, port int) func (d *DHT) Port() int func (d *DHT) RemoveInfoHash(ih string) func (d *DHT) Run() error func (d *DHT) Start() (err error) func (d *DHT) Stop() type DebugLogger type InfoHash func DecodeInfoHash(x string) (b InfoHash, err error) func (i InfoHash) String() string type Logger DHT This section is empty. DecodePeerAddress transforms the binary-encoded host:port address into ahuman-readable format. So, "abcdef" becomes 97.98.99.100:25958. func RegisterFlags(c *Config) Registers Config fields as command line flags. If c is nil, DefaultConfigis used. Config for the DHT Node. Use NewConfig to create a configuration with default values. Creates a *Config populated with default values. type DHT struct { PeersRequestResults chan map[InfoHash][]string Logger Logger DebugLogger DebugLogger } DHT should be created by New(). It provides DHT features to a torrentclient, such as finding new peers for torrent downloads without requiring atracker.ExampleDHT is a simple example that searches for a particular infohash andexits when it finds any peers. A stand-alone version can be found in theexamples/ directory.if testing.Short() { fmt.Println("Peer found for the requested infohash or the test was skipped") return}d, err := New(nil)if err != nil { fmt.Println(err) return}if err = d.Start(); err != nil { fmt.Println(err) return}infoHash, err := DecodeInfoHash("d1c5676ae7ac98e8b19f63565905105e3c4c37a2")if err != nil { fmt.Printf("DecodeInfoHash faiure: %v", err) return}tick := time.Tick(time.Second)var infoHashPeers map[InfoHash][]stringtimer. ERR UNSAFE PORT problem in Firefox [Solved]network.security.ports.banned.override ERR UNSAFE PORT problem in Chrome Fix-explicitly-allowed-ports=6666

Исправить ошибку ERR UNSAFE PORT в браузере Chrome

_ ___ _____| |__ _ _ __| |_ __ \ \ /\ / / _ \ '_ \| | | |/ _` | '_ \ \ V V / __/ |_) | |_| | (_| | |_) | \_/\_/ \___|_.__/ \__,_|\__,_| .__/ |_|WebUDPNOTE: This is highly experimental and the API will be changeWebUDP is a thin wraper on top of WebRTC. WebUDP tries to mimic the WebSocket API as much as possible at least on the client side.Signaling server/client are built on top of noraml http/fetch to make it super portable and light weight.InstallationUsageWebUDP comes with both server and client class which simplified the complexity of using WebRTC.WebUDPServerextends WebUDPServer and implement one or more of onLeave, onJoin, onError or onMessage.Also send(id, data), sendAll(data) and close(id) method are provided by WebUDPServer. { this.send(id, 'hello from UDP server again') }, 1000) }}new WebUDP(8001)">const WebUDPServer = require('webudp/server')//class WebUDP extends WebUDPServer { constructor(port) { super({ port: port }) } onLeave(id) { console.log('leave: ', id) } onJoin(id) { console.log('join: ', id) this.send(id, 'hello from UDP server') } onError(id, err) { console.log('error: ', id, err) } onMessage(id, data) { console.log('data: ', id, data) setTimeout(() => { this.send(id, 'hello from UDP server again') }, 1000) }}new WebUDP(8001)WebUDPClientClient side there are four(4) methods to implements. send(data) and close() are also provided by WebUDPClient { this.close() }, 5000) } onError(err) { console.log('error: ', err) } onMessage(data) { console.log('data', data) setTimeout(() => { this.send('hello from UDP client again') }, 1000) }}const webUDP = new WebUDP(' WebUDP extends WebUDPClient { constructor(addr)

Fix Err Unsafe Port: Troubleshooting Guide and Common Fixes

(object oriented): prepare("SELECT datname FROM pg_database");$statement->execute();while ($row = $statement->fetch()) { echo "" . htmlspecialchars($row["datname"]) . "\n";}?> Or the pg_connect() functions (procedural): " . htmlspecialchars($row[0]) . "\n";}?> Go To connect to postgres from Golang, you can download this library. go get github.com/jackc/pgx/v5 Then you can connect like this: package mainimport ( "database/sql" "fmt" _ "github.com/jackc/pgx/v5/stdlib")func main() { dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable", , , , , ) db, err := sql.Open("pgx", dsn) if err != nil { panic(err) } defer db.Close() ...} Be sure to replace the placeholders with your actual connection details. GORM If you are using GORM, you can connect like this: package mainimport ( "gorm.io/driver/postgres" "gorm.io/gorm")func main() { dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable", , , , , ) db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{}) if err != nil { panic(err) } defer db.Close() ...} Python To connect to a PostgreSQL server with Python, please first install the psycopg2 library: pip install psycopg2 Django In your settings.py, add an entry to your DATABASES setting: DATABASES = { "default": { "ENGINE": "django.db.backends.postgresql_psycopg2", "NAME": "[YOUR_DATABASE_NAME]", "USER": "[YOUR_USER_NAME]", "PASSWORD": "", "HOST": "localhost", "PORT": "", }} Flask When using the Flask-SQLAlchemy extension you can add to your application code: from flask import Flaskfrom flask_sqlalchemy import SQLAlchemyapp = Flask(__name__)app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://localhost/[YOUR_DATABASE_NAME]'db = SQLAlchemy(app) SQLAlchemy from sqlalchemy import create_engineengine = create_engine('postgresql://localhost/[YOUR_DATABASE_NAME]') Ruby To install the pg gem, make sure you have set up your $PATH correctly (see Command-Line Tools), then execute the following command: sudo ARCHFLAGS="-arch x86_64" gem install pg Rails In config/database.yml, use the following settings: development: adapter: postgresql database: [YOUR_DATABASE_NAME] host: localhost Sinatra In config.ru or your application code: set :database, "postgres://localhost/[YOUR_DATABASE_NAME]" ActiveRecord Install the activerecord gem and require 'active_record', and establish a database connection: ActiveRecord::Base.establish_connection("postgres://localhost/[YOUR_DATABASE_NAME]") DataMapper Install and require the datamapper and do_postgres gems, and create a database connection: DataMapper.setup(:default, "postgres://localhost/[YOUR_DATABASE_NAME]") Sequel Install and require the sequel gem, and create a database connection: DB = Sequel.connect("postgres://localhost/[YOUR_DATABASE_NAME]") Java Download and install the PostgreSQL JDBC driver Connect to the JDBC URL jdbc:postgresql://localhost For more information see the official PostgreSQL JDBC documentation. C libpq is the native C client library for connecting to PostgreSQL. It's really easy to use: #include int main() { PGconn *conn = PQconnectdb("postgresql://localhost"); if (PQstatus(conn) == CONNECTION_OK) { PGresult *result = PQexec(conn, "SELECT datname FROM pg_database"); for (int i = 0; i Now compile the file with clang and run it: clang main.c -I$(pg_config --includedir) -L$(pg_config --libdir) -lpq./a.out Swift You can just use the C API in Swift! First include libpq in your bridging header: #import Then make sure to link with libpq. On iOS, you'll need to build libpq yourself. On macOS you can use the system provided libpq (does not support SSL) or use. ERR UNSAFE PORT problem in Firefox [Solved]network.security.ports.banned.override

Error de ERR UNSAFE PORT en Chrome y Firefox Fix

Option in the Settings menu is enabled:Choose the +File button and a new pop-up box will appear. Enter the name .htaccess and select Create New File:Select the .htaccess file and choose Edit:Enter the following rule:RewriteEngine OnRewriteBase /RewriteRule ^index\.html$ - [L]RewriteCond %{REQUEST_FILENAME} !-fRewriteCond %{REQUEST_FILENAME} !-dRewriteCond %{REQUEST_FILENAME} !-lRewriteRule . /index.html [L]Select Save Changes then close the editor:Find this video guide on how to access and edit the .htaccess file.Open a new tab in your web browser and enter your website URL. Now you should see your React.js app running.Congratulations! You have deployed your React.js App to cPanel shared hosting.Deploying a Next.js appNOTE: Compatible Node.js and Next.js versions are shown on the Next.js website:Next.js 14: Node.js 18.17Next.js 13: Node.js 16.14.0Next.js 12: Node.js 12.22.0To prepare a Next.js app for deployment, you need to create a custom Next.js server (server.js), modify the package.json file, and build the app.1. Create a custom Next.js server (server.js)Create a server.js file in the root directory, you can check the Next.js guide for what’s needed. Add this code to the file:const { createServer } = require('http')const { parse } = require('url')const next = require('next')const dev = process.env.NODE_ENV !== 'production'const hostname = 'localhost'const port = 3000// when using middleware `hostname` and `port` must be provided belowconst app = next({ dev, hostname, port })const handle = app.getRequestHandler()app.prepare().then(() => { createServer(async (req, res) => { try { // Be sure to pass true as the second argument to url.parse. // This tells it to parse the query portion of the URL. const parsedUrl = parse(req.url, true) const { pathname, query } = parsedUrl if (pathname === '/a') { await app.render(req, res, '/a', query) } else if (pathname === '/b') { await app.render(req, res, '/b', query) } else { await handle(req, res, parsedUrl) } } catch (err) { console.error('Error occurred handling', req.url, err) res.statusCode = 500 res.end('internal server error') } }) .once('error', (err) => { console.error(err) process.exit(1) }) .listen(port, () => { console.log(`> Ready on })})2. Modify the package.json fileModify the package.json file to set the environment to production on the start script and run the server.js file you created in the project root directory. Here you’ve replaced the default Next start server script with our own custom server.{ "scripts": { "start": "NODE_ENV=production node server.js", } }Make sure you install the required dependencies by running npm install in your terminal.3. Build a Next.js applicationTo build a Next.js application:Open your terminal and navigate to your project directory.Run the build command:npm run buildEnsure that there are no errors during the build process. If there are, they need to be fixed before going on.4. Prepare Files for DeploymentOpen the file manager and locate your Next.js project files.Enable visibility for any hidden files. Exclude the following folders/files:node_modules;.git;README.md;.gitignore.Select all remaining files and folders.Create a ZIP archive of the selected files:It's important to exclude the node_modules directory because it’s often large and not needed for deployment. The necessary modules will be installed on the server at a later stage.5. Upload the archive file to your cPanel on shared hosting.Learn how