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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.
| Dormitory | Domain | IP range | IP range UNIX style | Information server |
|---|---|---|---|---|
| Podolí | pod.cvut.cz | 147.32.88-95.* | 147.32.88.0/21 | |
| Masaryčka | mk.cvut.cz | 147.32.96-97.* | 147.32.96.0/23 | |
| 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 | |
| Dimitrovova | dik.cvut.cz | 147.32.108.* | 147.32.108.0/24 | |
| Bubeneč | buk.cvut.cz | 147.32.104-105.* | 147.32.104.0/23 | |
| Sinkule | sin.cvut.cz | 147.32.110-111.* | 147.32.110.0/23 | |
| Strahov | sh.cvut.cz | 147.32.112-127.* | 147.32.112.0/20 |
Note: Net on Hlavkově koleji is not the part of SU net
| 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 |
| 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.
| 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 |
