Operating System Summary

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Operating System	Proportion	Number
Unknown	36.17%	523
Linux 2.1.122 - 2.2.14	11.00%	159
FreeBSD 2.2.1 - 4.0	8.78%	127
Linux kernel 2.2.13	7.12%	103
Solaris 2.6 - 2.7, Solaris 7	6.98%	101
Windows NT4 / Win95 / Win98	5.60%	81
Linux 2.0.35-38	4.36%	63
BSDI BSD/OS 3.0-3.1 (or possibly MacOS, NetBSD)	3.32%	48
FreeBSD 2.2.1 - 3.2	2.97%	43
BSDI BSD/OS 4.0.1 Kernel	2.77%	40
Cobalt Linux 4.0 (Fargo) Kernel 2.0.34C52_SK on MIPS or TEAMInternet Series 100 WebSense	2.28%	33
Linux 2.0.32-34	1.45%	21
BSDI 4.0-4.0.1, BSDI Version 7.00LS	1.04%	15
Linux 2.1.122 - 2.2.14, Linux kernel 2.2.13	0.97%	14
Solaris 2.5, 2.5.1	0.76%	11
Solaris 2.6 - 2.7	0.55%	8
IRIX 6.2 - 6.5	0.48%	7
Solaris 2.6 - 2.7 with tcp_strong_iss=2	0.48%	7
Solaris 7	0.41%	6
AIX 4.02.0001.0000, AIX v4.2\|AIX 4.2\|AIX 4.2.X\|AIX 4.3.2.0-4.3.3.0 on an IBM RS/*\|IBM AIX v3.2.5 - 4\|Cayman 2E	0.28%	4
Linux 2.0.27 - 2.0.30	0.28%	4
Compaq Tru64 UNIX (formerly Digital UNIX) 4.0e, Digital UNIX OSF1 V 4.0-4.0F	0.21%	3
NetBSD 1.4 / Generic mac68k (Quadra 610)	0.21%	3
Windows 2000 RC1 through final release	0.21%	3
Windows NT 4 SP3, Microsoft NT 4.0 Server SP5 + 2047 Hotfixes	0.21%	3
Ascend GRF Router running Ascend Embedded/OS 2.1, BSDI BSD/OS 2.0 - 2.1	0.14%	2
Linux Kernel 2.1.88	0.14%	2
Solaris 2.6, Solaris 7	0.14%	2
Windows 2000 RC1 through final release, MS Windows2000 Professional RC1/W2K Advance Server Beta3	0.14%	2
BSDI 4.0-4.0.1	0.07%	1
Digital UNIX OSF1 V 4.0,4.0B,4.0D,4.0E, Digital UNIX OSF1 V 4.0-4.0F	0.07%	1
Galacticomm WorldGroup BBS / Vircom TCP/IP stack	0.07%	1
Microsoft NT 4.0 Server SP5 + 2047 Hotfixes	0.07%	1
MS Windows2000 Professional RC1/W2K Advance Server Beta3	0.07%	1
OpenBSD Post 2.4 (November 1998) - 2.5	0.07%	1
SCO UnixWare 7.0.0 or OpenServer 5.0.4-5	0.07%	1
Sun Solaris 8 early acces beta through actual release	0.07%	1