Figura: Internet Hosts
Figura: Domini Internet
Figura: Reti Internet
Internet | Networks | WWW | USENET | Sicurezza
Crescita di Internet:
Data Hosts | Data Hosts Networks Domini
----- --------- + ----- --------- -------- ---------
12/69 4 | 07/89 130,000 650 3,900
06/70 9 | 10/89 159,000 837
10/70 11 | 10/90 313,000 2,063 9,300
12/70 13 | 01/91 376,000 2,338
04/71 23 | 07/91 535,000 3,086 16,000
10/72 31 | 10/91 617,000 3,556 18,000
01/73 35 | 01/92 727,000 4,526
06/74 62 | 04/92 890,000 5,291 20,000
03/77 111 | 07/92 992,000 6,569 16,300
12/79 188 | 10/92 1,136,000 7,505 18,100
08/81 213 | 01/93 1,313,000 8,258 21,000
05/82 235 | 04/93 1,486,000 9,722 22,000
08/83 562 | 07/93 1,776,000 13,767 26,000
10/84 1,024 | 10/93 2,056,000 16,533 28,000
10/85 1,961 | 01/94 2,217,000 20,539 30,000
02/86 2,308 | 07/94 3,212,000 25,210 46,000
11/86 5,089 | 10/94 3,864,000 37,022 56,000
12/87 28,174 | 01/95 4,852,000 39,410 71,000
07/88 33,000 | 07/95 6,642,000 61,538 120,000
10/88 56,000 | 01/96 9,472,000 93,671 240,000
01/89 80,000 | 07/96 12,881,000 134,365 488,000
| 01/97 16,146,000 828,000
| 07/97 19,540,000 1,301,000
*** see Note below ***
Hosts = un computer con un indirizzo ip registrato (A record)
Networks = indirizzi registratidi classe A/B/C
Domains = nome di dominio registrato (con un name server record)
Nota: Un sistema di rilevamento più accurato fu sviluppato nel gennaio 1998; qui di seguito
vengono mostrate alcune cifre nuove e corrette. Per ulteriori informazioni, cfr.
Sources section.
Data Hosts | Data Hosts | Data Hosts
----- ----------- + ----- ----------- + ----- -----------
01/95 5,846,000 | 01/97 21,819,000 | 01/99 43,230,000
07/95 8,200,000 | 07/97 26,053,000 | 07/99 56,218,000
01/96 14,352,000 | 01/98 29,670,000 | 01/00 72,398,092
07/96 16,729,000 | 07/98 36,739,000 | 07/00 93,047,785
| 01/01 109,574,429
Figura: Internet Hosts
Figura: Domini Internet
Figura: Reti Internet
Crescita a livello mondiale delle reti: (I)nternet (B)ITNET (U)UCP (F)IDONET (O)SI
____# Paesi____ ____# Paesi____ Data I B U F O Data I B U F O ----- --- --- --- --- --- ----- --- --- --- --- --- 09/91 31 47 79 49 02/94 62 51 125 88 31 12/91 33 46 78 53 07/94 75 52 129 89 31 02/92 38 46 92 63 11/94 81 51 133 95 -- 04/92 40 47 90 66 25 02/95 86 48 141 98 -- 08/92 49 46 89 67 26 06/95 96 47 144 99 -- 01/93 50 50 101 72 31 06/96 134 -- 146 108 -- 04/93 56 51 107 79 31 07/97 171 -- 147 108 -- 08/93 59 51 117 84 31
Figura: Crescita delle reti a livello mondiale
Crescita del WWW:
Data Siti | Data Siti | Data Siti
----- ---------- + ----- ---------- + ----- ----------
06/93 130 | 07/97 1,203,096 | 07/99 6,598,697
09/93 204 | 08/97 1,269,800 | 08/99 7,078,194
10/93 228 | 09/97 1,364,714 | 09/99 7,370,929
12/93 623 | 10/97 1,466,906 | 10/99 8,115,828
06/94 2,738 | 11/97 1,553,998 | 11/99 8,844,573
12/94 10,022 | 12/97 1,681,868 | 12/99 9,560,866
06/95 23,500 | 01/98 1,834,710 | 01/00 9,950,491
01/96 100,000 | 02/98 1,920,933 | 02/00 11,161,811
03/96 135,396 | 03/98 2,084,473 | 03/00 13,106,190
04/96 150,295 | 04/98 2,215,195 | 04/00 14,322,950
05/96 193,150 | 05/98 2,308,502 | 05/00 15,049,382
06/96 252,000 | 06/98 2,410,067 | 06/00 17,119,262
07/96 299,403 | 07/98 2,594,622 | 07/00 18,169,498
08/96 342,081 | 08/98 2,807,588 | 08/00 19,823,296
09/96 397,281 | 09/98 3,156,324 | 09/00 21,166,912
10/96 462,047 | 10/98 3,358,969 | 10/00 22,282,727
11/96 525,906 | 11/98 3,518,158 | 11/00 23,777,446
12/96 603,367 | 12/98 3,689,227 | 12/00 25,675,581
01/97 646,162 | 01/99 4,062,280 | 01/01 27,585,719
02/97 739,688 | 02/99 4,301,512 | 02/01 28,125,284
03/97 883,149 | 03/99 4,349,131 | 03/01 28,611,177
04/97 1,002,612 | 04/99 5,040,663 | 04/01 28,669,939
05/97 1,044,163 | 05/99 5,414,325 | 05/01 29,031,745
06/97 1,117,259 | 06/99 6,177,453 | 06/01 29,302,656
| | 07/01 31,299,592
Siti = Numero di web servers (un host può avere più siti
usando domini diversi o numeri di porta diversi)
Figura: Crescita del WWW
Crescita di USENET:
Data Siti ~MB ~Posts Groups | Data Siti ~MB ~Posts Groups
---- ----- --- ------ ------ + ---- ------- --- ------ ------
1979 3 2 3 | 1987 5,200 2 957 259
1980 15 10 | 1988 7,800 4 1933 381
1981 150 0.05 20 | 1990 33,000 10 4,500 1,300
1982 400 35 | 1991 40,000 25 10,000 1,851
1983 600 120 | 1992 63,000 42 17,556 4,302
1984 900 225 | 1993 110,000 70 32,325 8,279
1985 1,300 1.0 375 | 1994 180,000 157 72,755 10,696
1986 2,200 2.0 946 241 | 1995 330,000 586 131,614
~ approssimato: MB - megabytes al giorno, Posts - articoli al giorno
Incidenti relativi alla sicurezza (CERT):
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
+ ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
Inc | 6 132 252 406 773 1334 2340 2412 2573 2134 3734 9859 21756
Adv | 1 7 12 23 21 19 15 18 27 28 13 17 22
Vul | 171 345 311 262 417 774
(Inc)identi, (Adv)isories, (Vul)nerabilità