Magic methods, 647

Mail Exchange (MX) records, 893

Mail records, 893

Mail servers, 18

<main> element, 105

Man-in-the-middle attacks, 827

Many-to-many relationship, 722

• implementation, 724f

map(), 482, 483, 483f, 484c

Mapping records, 891–893

Margins, 156–159

• usage, 157f

Markup, 74

Master head-end, connection, 28

Materialize and Bootstrap classes, example, 177f

MaxKeepAliveRequests, 908

MEAN software stack, 70

Media

• concepts, 268–269

• container, 269f

• encoding, 268, 269f

• servers, 18

Media access control (MAC) addresses, 43

Media queries, 314–318

• action, 317f

• browser features, examination, 316t

• sample, 315f

• syntax, 314

memcache, usage (example), 802c–803c

memory impact, 488f

• property, usage, 490f

• use to extending other objects, 487–489

• using, 487, 489c

Menu control, 977

merge command (GIT), 233

Message

• symmetric encryption, 835f

• transmitting, 834f

Metacharacters, regular expressions, 463, 463t

Methods, 646–648

• defined, 367

  • example, 647c

• magic methods, 647

Metrics, 997

Microservice architecture, 887, 887f

Middleware, 686

Migration, HTTPS, 846–848

MIME (multipurpose Internet mail extensions), 918

Minification, 337, 358

Mobile first design, 312

Modifier, 337

Modules, 493–497

• route handlers, 691c

• scope, 403

• separating functionality, 690–691

MongoDB, 18

• accessing data in Node.js, 764–766

• connecting using Mongoose, 766–767c

• database, 69, 70

• data model, 762, 762t

  • relational databases and, 763f

• features, 761–762

• SQL query and MongoDB query, 766f

• tools, 719–720

• web service using Mongoose and MongoDB, 768c

• working with MongoDB shell, 764, 965f

Mongoose, 764, 767c

Monitor

• access, 858–859

• system, 858

Monitoring, Web, 925–927

• external, 927

• internal, 925–926

Monitor size, impact, 256f

Monolithic architecture, 886, 886f

Moodle, 972t

Mosaic, 7

Mostly Fluid pattern, 318

Mouse events, 448, 449t

Movement events, 457f, 458

MP4 container, 270, 272

MP3 file extension, 271

Multidimensional arrays, 636–638

• example, 637–638c

• visualization, 638f

Multifactor authentication, 825

Multiple domains

• management, web server, 914–916

Multiple master replication, 770, 771f

Multipurpose Internet Mail Extensions (MIME), 272

MyISAM, usage, 730

MySQL, 9, 18, 712

• command-line interface, 716, 716f

• database, 69

  • management, 715–720

• installation, 608–609

• multiple ways to access, 715f

• prepared statements, 745–747

• regular expressions, 468

• Server, 70

• workbench, 718–719

  • example, 719f

mysqli

• usage, 735c