LDN7
This commit is contained in:
Gašper Dobrovoljc
commit
271f97e993
BIN
LDN5/promet.pcapng
Normal file
BIN
LDN5/promet.pcapng
Normal file
Binary file not shown.
67
LDN5/tabele.txt
Normal file
67
LDN5/tabele.txt
Normal file
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@ -0,0 +1,67 @@
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PC1
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default via 192.168.4.1 dev eth0
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192.168.4.0/24 dev eth0 scope link src 192.168.4.2
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2001:db8:ef:4::/64 dev eth0 metric 256
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fe80::/64 dev eth0 metric 256
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default via 2001:db8:ef:4::1 dev eth0 metric 1024
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ff00::/8 dev eth0 metric 256
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--------------------------------------------------------------------------
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PC2
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default via 172.16.8.1 dev eth0
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172.16.8.0/24 dev eth0 scope link src 172.16.8.2
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2001:db8:8:ef::/64 dev eth0 metric 256
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fe80::/64 dev eth0 metric 256
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default via 2001:db8:8:ef::1 dev eth0 metric 1024
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ff00::/8 dev eth0 metric 256
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--------------------------------------------------------------------------
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R1
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10.0.0.0/30 dev eth1 proto kernel scope link src 10.0.0.1
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10.1.0.0/30 dev eth0 proto kernel scope link src 10.1.0.1
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 via 10.0.0.2 dev eth1 proto zebra
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192.168.4.0/24 via 10.1.0.2 dev eth0 proto zebra
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2001:db8:0:f::/64 dev eth1 proto kernel metric 256
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2001:db8:8:ef::/64 via 2001:db8:0:f::2 dev eth1 proto zebra metric 1024
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2001:db8:e:1::/64 dev eth0 proto kernel metric 256
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2001:db8:ef:4::/64 via 2001:db8:e:1::2 dev eth0 proto zebra metric 1024
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fe80::/64 dev eth1 proto kernel metric 256
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fe80::/64 dev eth0 proto kernel metric 256
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--------------------------------------------------------------------------
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R2
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10.1.0.0/30 dev eth0 proto kernel scope link src 10.1.0.2
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 via 10.1.0.1 dev eth0 proto zebra
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192.168.4.0/24 dev eth1 proto kernel scope link src 192.168.4.1
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2001:db8:8:ef::/64 dev eth0 metric 256
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fe80::/64 dev eth0 metric 256
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default via 2001:db8:8:ef::1 dev eth0 metric 1024
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ff00::/8 dev eth0 metric 256
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--------------------------------------------------------------------------
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R3
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10.0.0.0/30 dev eth0 proto kernel scope link src 10.0.0.2
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 dev eth1 proto kernel scope link src 172.16.8.1
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192.168.4.0/24 via 10.0.0.1 dev eth0 proto zebra
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2001:db8:0:f::/64 dev eth0 proto kernel metric 256
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2001:db8:8:ef::/64 dev eth1 proto kernel metric 256
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2001:db8:ef:4::/64 via 2001:db8:0:f::1 dev eth0 proto zebra metric 1024
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fe80::/64 dev eth1 proto kernel metric 256
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fe80::/64 dev eth0 proto kernel metric 256
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BIN
LDN5/topologija.png
Normal file
BIN
LDN5/topologija.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 92 KiB |
152
LDN6/konfiguracija.txt
Normal file
152
LDN6/konfiguracija.txt
Normal file
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@ -0,0 +1,152 @@
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/ # ping 192.168.4.2
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PING 192.168.4.2 (192.168.4.2): 56 data bytes
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64 bytes from 192.168.4.2: seq=0 ttl=62 time=3.644 ms
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64 bytes from 192.168.4.2: seq=1 ttl=62 time=7.362 ms
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64 bytes from 192.168.4.2: seq=2 ttl=62 time=3.554 ms
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64 bytes from 192.168.4.2: seq=3 ttl=62 time=3.654 ms
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64 bytes from 192.168.4.2: seq=4 ttl=62 time=3.574 ms
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--- 192.168.4.2 ping statistics ---
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5 packets transmitted, 5 packets received, 0% packet loss
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round-trip min/avg/max = 3.554/4.357/7.362 ms
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/ # traceroute 192.168.4.2
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traceroute to 192.168.4.2 (192.168.4.2), 30 hops max, 46 byte packets
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1 10.0.0.1 (10.0.0.1) 1.149 ms 1.144 ms 1.063 ms
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2 1.1.1.2 (1.1.1.2) 3.049 ms 3.751 ms 1.721 ms
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3 192.168.4.2 (192.168.4.2) 2.876 ms 3.201 ms 2.826 ms
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/ # ping 192.168.4.2
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PING 192.168.4.2 (192.168.4.2): 56 data bytes
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64 bytes from 192.168.4.2: seq=0 ttl=61 time=9.979 ms
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64 bytes from 192.168.4.2: seq=1 ttl=61 time=5.306 ms
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64 bytes from 192.168.4.2: seq=2 ttl=61 time=8.230 ms
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64 bytes from 192.168.4.2: seq=3 ttl=61 time=4.963 ms
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64 bytes from 192.168.4.2: seq=4 ttl=61 time=7.786 ms
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--- 192.168.4.2 ping statistics ---
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5 packets transmitted, 5 packets received, 0% packet loss
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round-trip min/avg/max = 4.963/7.252/9.979 ms
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/ # traceroute 192.168.4.2
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traceroute to 192.168.4.2 (192.168.4.2), 30 hops max, 46 byte packets
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1 10.0.0.1 (10.0.0.1) 1.079 ms 0.978 ms 0.875 ms
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2 1.1.1.10 (1.1.1.10) 1.878 ms 2.529 ms 1.820 ms
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3 1.1.1.5 (1.1.1.5) 4.696 ms 4.186 ms 3.769 ms
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4 192.168.4.2 (192.168.4.2) 4.442 ms 9.486 ms 5.144 ms
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R1
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1.1.1.8/30 dev eth1 proto kernel scope link src 1.1.1.9
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10.0.0.0/24 dev eth2 proto kernel scope link src 10.0.0.1
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 via 1.1.1.10 dev eth1 proto zebra metric 1
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192.168.4.0/24 via 1.1.1.10 dev eth1 proto zebra
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R2
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1.1.1.4/30 dev eth1 proto kernel scope link src 1.1.1.5
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10.0.0.0/24 via 1.1.1.6 dev eth1 proto zebra
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 via 1.1.1.6 dev eth1 proto zebra metric 1
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192.168.4.0/24 dev eth2 proto kernel scope link src 192.168.4.1
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R3
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1.1.1.4/30 dev eth0 proto kernel scope link src 1.1.1.6
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1.1.1.8/30 dev eth1 proto kernel scope link src 1.1.1.10
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10.0.0.0/24 via 1.1.1.9 dev eth1 proto zebra metric 1
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127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1
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172.16.8.0/24 dev eth2 proto kernel scope link src 172.16.8.1
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192.168.4.0/24 via 1.1.1.5 dev eth0 proto zebra metric 1
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R1
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configure
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set interfaces ethernet eth0 address 1.1.1.1/30
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set interfaces ethernet eth1 address 1.1.1.9/30
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set interfaces ethernet eth3 address 10.0.0.1/30
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set protocols bgp 65531 neighbor 1.1.1.2 remote-as '65532'
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set protocols bgp 65531 neighbor 1.1.1.2 update-source 1.1.1.1
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set protocols bgp 65531 parameters router-id 1.1.1.1
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set protocols bgp 65531 neighbor 1.1.1.10 remote-as '65533'
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set protocols bgp 65531 neighbor 1.1.1.10 update-source 1.1.1.9
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set protocols bgp 65531 parameters router-id 1.1.1.10
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set protocols bgp 65531 network 10.0.0.0/24
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commit
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save
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exit
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R2
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configure
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set interfaces ethernet eth0 address 1.1.1.2/30
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set interfaces ethernet eth1 address 1.1.1.5/30
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set interfaces ethernet eth2 address 192.168.4.1/24
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set protocols bgp 65532 neighbor 1.1.1.1 remote-as '65531'
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set protocols bgp 65532 neighbor 1.1.1.1 update-source 1.1.1.2
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set protocols bgp 65532 parameters router-id 1.1.1.2
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set protocols bgp 65532 neighbor 1.1.1.6 remote-as '65533'
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set protocols bgp 65532 neighbor 1.1.1.6 update-source 1.1.1.5
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set protocols bgp 65532 parameters router-id 1.1.1.6
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set protocols bgp 65532 network 192.168.4.0/24
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commit
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save
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exit
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R3
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configure
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set interfaces ethernet eth0 address 1.1.1.6/30
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set interfaces ethernet eth1 address 1.1.1.10/30
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set interfaces ethernet eth3 address 172.16.8.1/24
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set protocols bgp 65533 neighbor 1.1.1.9 remote-as '65531'
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set protocols bgp 65533 neighbor 1.1.1.9 update-source 1.1.1.10
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set protocols bgp 65533 parameters router-id 1.1.1.10
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set protocols bgp 65533 neighbor 1.1.1.5 remote-as '65532'
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set protocols bgp 65533 neighbor 1.1.1.5 update-source 1.1.1.6
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set protocols bgp 65533 parameters router-id 1.1.1.6
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set protocols bgp 65533 network 172.16.8.0/24
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commit
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save
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exit
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PC1
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cat /etc/network/interfaces
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auto eth0
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iface eth0 inet static
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address 10.0.0.2
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netmask 255.255.255.0
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gateway 10.0.0.1
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PC2
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cat /etc/network/interfaces
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auto eth0
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iface eth0 inet static
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address 192.168.4.2
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netmask 255.255.255.0
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gateway 192.168.4.1
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PC3
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cat /etc/network/interfaces
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auto eth0
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iface eth0 inet static
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address 172.16.8.2
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netmask 255.255.255.0
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gateway 172.16.8.1
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BIN
LDN6/promet.pcapng
Normal file
BIN
LDN6/promet.pcapng
Normal file
Binary file not shown.
BIN
LDN6/topologija.png
Normal file
BIN
LDN6/topologija.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 202 KiB |
8
LDN7/.idea/.gitignore
vendored
Normal file
8
LDN7/.idea/.gitignore
vendored
Normal file
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@ -0,0 +1,8 @@
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# Default ignored files
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/shelf/
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/workspace.xml
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# Editor-based HTTP Client requests
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/httpRequests/
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# Datasource local storage ignored files
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/dataSources/
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/dataSources.local.xml
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10
LDN7/.idea/LDN7.iml
Normal file
10
LDN7/.idea/LDN7.iml
Normal file
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@ -0,0 +1,10 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="PYTHON_MODULE" version="4">
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<component name="NewModuleRootManager">
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<content url="file://$MODULE_DIR$">
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<excludeFolder url="file://$MODULE_DIR$/.venv" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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6
LDN7/.idea/inspectionProfiles/profiles_settings.xml
Normal file
6
LDN7/.idea/inspectionProfiles/profiles_settings.xml
Normal file
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<component name="InspectionProjectProfileManager">
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<settings>
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<option name="USE_PROJECT_PROFILE" value="false" />
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<version value="1.0" />
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</settings>
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</component>
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7
LDN7/.idea/misc.xml
Normal file
7
LDN7/.idea/misc.xml
Normal file
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@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="Black">
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<option name="sdkName" value="Python 3.12 (LDN7)" />
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</component>
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<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (LDN7)" project-jdk-type="Python SDK" />
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</project>
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8
LDN7/.idea/modules.xml
Normal file
8
LDN7/.idea/modules.xml
Normal file
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@ -0,0 +1,8 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="ProjectModuleManager">
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<modules>
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<module fileurl="file://$PROJECT_DIR$/.idea/LDN7.iml" filepath="$PROJECT_DIR$/.idea/LDN7.iml" />
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</modules>
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</component>
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</project>
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101
LDN7/client.py
Normal file
101
LDN7/client.py
Normal file
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@ -0,0 +1,101 @@
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import json
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import socket
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import struct
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import sys
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import threading
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from datetime import datetime
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PORT = 1234
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HEADER_LENGTH = 2
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def receive_fixed_length_msg(sock, msglen):
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message = b''
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while len(message) < msglen:
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chunk = sock.recv(msglen - len(message)) # preberi nekaj bajtov
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if chunk == b'':
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raise RuntimeError("socket connection broken")
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message = message + chunk # pripni prebrane bajte sporocilu
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return message
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def receive_json(sock):
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# preberi glavo sporocila (v prvih 2 bytih je dolzina sporocila)
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header = receive_fixed_length_msg(sock, HEADER_LENGTH)
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message_length = struct.unpack("!H", header)[0] # pretvori dolzino sporocila v int
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message = None
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if message_length > 0: # ce je vse OK
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message = receive_fixed_length_msg(sock, message_length) # preberi sporocilo
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message = message.decode("utf-8")
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message = json.loads(message)
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return message
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def send_json(sock, data):
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data["time"] = datetime.now().strftime("%c")
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# pretvori sporocilo v niz bajtov, uporabi UTF-8 kodno tabelo
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encoded_data = json.dumps(data).encode("utf-8")
|
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# ustvari glavo v prvih 2 bytih je dolzina sporocila (HEADER_LENGTH)
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# metoda pack "!H" : !=network byte order, H=unsigned short
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header = struct.pack("!H", len(encoded_data))
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data = header + encoded_data # najprj posljemo dolzino sporocilo, sele nato sporocilo samo
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sock.sendall(data)
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|
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def send_username(sock, username):
|
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send_json(sock, {
|
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"type": "username",
|
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"data": username,
|
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})
|
||||
|
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|
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def send_message(sock, message):
|
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send_json(sock, {
|
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"type": "message",
|
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"data": message,
|
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})
|
||||
|
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|
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# message_receiver funkcija tece v loceni niti
|
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def message_receiver():
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while True:
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msg_received = receive_json(sock)
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|
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msg_type = msg_received["type"]
|
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data = msg_received["data"]
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time = msg_received["time"]
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match msg_type:
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case "message":
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username = msg_received["username"]
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print(f'[{time}] [{username}] : {data}')
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case "error":
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print(f'Error: {data}')
|
||||
|
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|
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# povezi se na streznik
|
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print("[system] connecting to chat server ...")
|
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
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sock.connect(("localhost", PORT))
|
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print("[system] connected!")
|
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|
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# zazeni message_receiver funkcijo v loceni niti
|
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thread = threading.Thread(target=message_receiver)
|
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thread.daemon = True
|
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thread.start()
|
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|
||||
username = input("enter username: ")
|
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send_username(sock, username)
|
||||
|
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# pocakaj da uporabnik nekaj natipka in poslji na streznik
|
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while True:
|
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try:
|
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msg_send = input("")
|
||||
send_message(sock, msg_send)
|
||||
except KeyboardInterrupt:
|
||||
sys.exit()
|
||||
147
LDN7/server.py
Normal file
147
LDN7/server.py
Normal file
|
|
@ -0,0 +1,147 @@
|
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import json
|
||||
import signal
|
||||
import socket
|
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import struct
|
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import threading
|
||||
from datetime import datetime
|
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|
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signal.signal(signal.SIGINT, signal.SIG_DFL)
|
||||
|
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PORT = 1234
|
||||
HEADER_LENGTH = 2
|
||||
|
||||
|
||||
def receive_fixed_length_msg(sock, msglen):
|
||||
message = b''
|
||||
while len(message) < msglen:
|
||||
chunk = sock.recv(msglen - len(message)) # preberi nekaj bajtov
|
||||
if chunk == b'':
|
||||
raise RuntimeError("socket connection broken")
|
||||
message = message + chunk # pripni prebrane bajte sporocilu
|
||||
|
||||
return message
|
||||
|
||||
|
||||
def receive_json(sock) -> dict:
|
||||
# preberi glavo sporocila (v prvih 2 bytih je dolzina sporocila)
|
||||
header = receive_fixed_length_msg(sock, HEADER_LENGTH)
|
||||
message_length = struct.unpack("!H", header)[0] # pretvori dolzino sporocila v int
|
||||
|
||||
message = None
|
||||
if message_length > 0: # ce je vse OK
|
||||
message = receive_fixed_length_msg(sock, message_length) # preberi sporocilo
|
||||
message = message.decode("utf-8")
|
||||
message = json.loads(message)
|
||||
|
||||
return message
|
||||
|
||||
|
||||
def send_json(sock, message):
|
||||
message["time"] = datetime.now().strftime("%c")
|
||||
encoded_message = json.dumps(message).encode("utf-8") # pretvori sporocilo v niz bajtov, uporabi UTF-8 kodno tabelo
|
||||
|
||||
# ustvari glavo v prvih 2 bytih je dolzina sporocila (HEADER_LENGTH)
|
||||
# metoda pack "!H" : !=network byte order, H=unsigned short
|
||||
header = struct.pack("!H", len(encoded_message))
|
||||
|
||||
message = header + encoded_message # najprj posljemo dolzino sporocilo, slee nato sporocilo samo
|
||||
sock.sendall(message)
|
||||
|
||||
|
||||
def send_error(sock, message):
|
||||
send_json(sock, {
|
||||
"type": "error",
|
||||
"data": message,
|
||||
})
|
||||
|
||||
|
||||
# funkcija za komunikacijo z odjemalcem (tece v loceni niti za vsakega odjemalca)
|
||||
def client_thread(client_sock, client_addr):
|
||||
global clients
|
||||
global usernames
|
||||
|
||||
print("[system] connected with " + client_addr[0] + ":" + str(client_addr[1]))
|
||||
print("[system] we now have " + str(len(clients)) + " clients")
|
||||
|
||||
try:
|
||||
|
||||
while True: # neskoncna zanka
|
||||
msg_received = receive_json(client_sock)
|
||||
msg_type = str(msg_received["type"])
|
||||
data = str(msg_received["data"])
|
||||
time = str(msg_received["time"])
|
||||
|
||||
if not msg_received: # ce obstaja sporocilo
|
||||
break
|
||||
|
||||
match msg_type:
|
||||
case "username":
|
||||
usernames[client_sock] = data
|
||||
|
||||
case "message":
|
||||
username = usernames[client_sock]
|
||||
if username is None:
|
||||
username = client_addr[0] + ":" + str(client_addr[1])
|
||||
msg_received["username"] = username
|
||||
|
||||
print(f'[{time}] [{username}] : {data}')
|
||||
|
||||
if data.startswith("@"):
|
||||
[username, *data] = data.split()
|
||||
username = str(username).replace("@", "")
|
||||
|
||||
cl = [c for c, u in usernames.items() if u == username]
|
||||
if len(cl) == 0:
|
||||
send_error(client_sock, "Client with this username does not exist.")
|
||||
continue
|
||||
client = cl[0]
|
||||
|
||||
msg_received["data"] = "".join(data)
|
||||
send_json(client, msg_received)
|
||||
continue
|
||||
|
||||
for client in clients:
|
||||
if client == client_sock:
|
||||
continue
|
||||
send_json(client, msg_received)
|
||||
|
||||
except:
|
||||
# tule bi lahko bolj elegantno reagirali, npr. na posamezne izjeme. Trenutno kar pozremo izjemo
|
||||
pass
|
||||
|
||||
# prisli smo iz neskoncne zanke
|
||||
with clients_lock:
|
||||
clients.remove(client_sock)
|
||||
if client_sock in usernames:
|
||||
usernames.pop(client_sock)
|
||||
|
||||
print("[system] we now have " + str(len(clients)) + " clients")
|
||||
client_sock.close()
|
||||
|
||||
|
||||
# kreiraj socket
|
||||
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
||||
server_socket.bind(("localhost", PORT))
|
||||
server_socket.listen(1)
|
||||
|
||||
# cakaj na nove odjemalce
|
||||
print("[system] listening ...")
|
||||
clients = set()
|
||||
usernames = dict()
|
||||
clients_lock = threading.Lock()
|
||||
while True:
|
||||
try:
|
||||
# pocakaj na novo povezavo - blokirajoc klic
|
||||
client_sock, client_addr = server_socket.accept()
|
||||
with clients_lock:
|
||||
clients.add(client_sock)
|
||||
|
||||
thread = threading.Thread(target=client_thread, args=(client_sock, client_addr))
|
||||
thread.daemon = True
|
||||
thread.start()
|
||||
|
||||
except KeyboardInterrupt:
|
||||
break
|
||||
|
||||
print("[system] closing server socket ...")
|
||||
server_socket.close()
|
||||
Loading…
Reference in New Issue
Block a user