FAQ - Frequently Asked Questions/Important IP addresses and servers

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Does 147.32.*.* belong only to CVUT?

Yes, 147.32.*.* (147.32.0.0/16) is assigned only to CTU in Prague.

Range of IP address for the dormitories of CTU
Dormitory Domain IP range IP range UNIX style Information server
Podolí pod.cvut.cz 147.32.88-95.* 147.32.88.0/21

http://www.pod.cvut.cz

Masaryčka mk.cvut.cz 147.32.96-97.* 147.32.96.0/23

http://www.mk.cvut.cz

Hlávkova kolej hk.cvut.cz 147.32.98.* 147.32.98.0/24 -
Dejvická dk.cvut.cz 147.32.107.* 147.32.107.0/24

http://www.dk.cvut.cz

Dimitrovova dik.cvut.cz 147.32.108.* 147.32.108.0/24

http://www.dik.cvut.cz

Bubeneč buk.cvut.cz 147.32.104-105.* 147.32.104.0/23

http://www.buk.cvut.cz

Sinkule sin.cvut.cz 147.32.110-111.* 147.32.110.0/23

http://www.sin.cvut.cz

Strahov sh.cvut.cz 147.32.112-127.* 147.32.112.0/20

http://www.sh.cvut.cz

Note: Net on Hlavkově koleji is not the part of SU net


Important servers of Silicon Hill
Name Function Address IP IPv6
primary DNS main nameserver ns.sh.cvut.cz 147.32.127.240 2001:718:2::6
secondary DNS secondary main nameserver ns2.sh.cvut.cz 147.32.127.241 2001:718:2:0:217:a4ff:fe3f:b3d4
timeserver server for clock synchronization time.sh.cvut.cz 147.32.127.248
www servers most important info www.sh.cvut.cz 147.32.127.210 2001:718:2::8
mail servery failover mail servers mail.sh.cvut.cz 147.32.127.214, 147.32.127.218 2001:718:2:0:20e:a6ff:fe4a:ac5d, 2001:718:2:0:217:a4ff:fe3f:b3d4
news server discussion groups localnews.sh.cvut.cz 147.32.127.248
ftp server archive ftp.sh.cvut.cz 147.32.127.222 2001:718:2::5
www proxy server failover proxy cache.sh.cvut.cz:3128 147.32.127.213, 147.32.127.215 2001:718:2:0:211:d8ff:fee4:e93f, 2001:718:2:0:210:dcff:fe4a:f5e1
Wins primary WinS server veverka.sh.cvut.cz 147.32.127.216
Wins secondary WinS server veverka.sh.cvut.cz 147.32.127.216


Table of main block servers
block Main block server Information pages
2 Stoupa stoupa
3 Heptium heptium
4 Logout logout
5 Nightmare nightmare
6 Šestka sestka
7 Heptium heptium
8 Klokan klokan
9 Devítka devitka
10 Desítka desitka
11 Veverka veverka

Is it possible to know on which block certain computer is situated according to IP address?

Yes, it is possible, except the backbone servers. These computers are connected directly to the gigabit SH backbone, their IP addresses are from range 147.32.127.*, 147.32.30.*, 147.32.31.* and are situated in Central server room at block 8, or in the server rooms of other blocks.

The range of IP addresses for blocks at Strahov
IP range IP range UNIX style Block (floor)
147.32.98.* 147.32.98.0/24 Hlávkova kolej
147.32.99.* 147.32.99.0/24
147.32.112.* 147.32.112.0/24 Blok 2
147.32.113.* 147.32.113.0/24 Blok 3
147.32.114.* 147.32.114.0/24 Blok 4 (2.-5. patro)
147.32.115.* 147.32.115.0/24 Blok 5
147.32.116.* 147.32.116.0/24 Blok 6
147.32.117.* 147.32.117.0/24 Blok 7 (S + 0.-3. patro)
147.32.118.* 147.32.118.0/24 Blok 8
147.32.119.* 147.32.119.0/24 Blok 9
147.32.120.* 147.32.120.0/24 Blok 10
147.32.121.* 147.32.121.0/24 Blok 11
147.32.122.0-127 147.32.122.0/25 Blok 2
147.32.122.128-255 147.32.122.128/25 Blok 3
147.32.123.0-127 147.32.123.0/25 Blok 4 (S + 0.-1. patro)
147.32.123.128-255 147.32.123.128/25 Blok 5
147.32.124.0-127 147.32.124.0/25 Blok 6
147.32.124.128-255 147.32.124.128/25 Blok 7 (4.-5. patro)
147.32.125.0-95 147.32.125.0/26 Blok 8
147.32.125.64/27
147.32.125.96-127 147.32.125.96/27 Blok 2
147.32.125.128-255 147.32.125.128/25 Blok 9
147.32.126.0-127 147.32.126.0/25 Blok 10
147.32.126.128-255 147.32.126.128/25 Blok 11+12
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