CentOS 8, AlamLinux 9.4 DHCP Server 架設

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安裝DHCP SERVER及編輯

1. dnf -y install dhcp-server
   
2. vi /etc/dhcp/dhcpd.conf

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檔案加入

1. # create new
   
2. # specify domain name
   
3. option domain-name     "www.google.com";
   
4. # specify DNS server's hostname or IP address
   
5. #DNS導向
   
6. option domain-name-servers 168.95.1.1, 8.8.8.8 ;
   
7. # default lease time
   
8. default-lease-time 6000;
   
9. # max lease time
   
10. max-lease-time 72000;
    
11. # this DHCP server to be declared valid
    
12. authoritative;
    
13. # specify network address and subnetmask
    
14. subnet 192.168.1.0 netmask 255.255.255.0 {
    
15.    # specify the range of lease IP address
    
16.    range dynamic-bootp 192.168.1.201 192.168.1.225;
    
17.    # specify broadcast address
    
18.    option broadcast-address 192.168.1.255;
    
19.    # specify gateway
    
20.    option routers 192.168.1.254;
    
21. }

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打開防火牆

1. firewall-cmd --add-service=dhcp --permanent
   
2. firewall-cmd --reload

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看分配的IP

1. ll /var/lib/dhcpd
   
2. 
   
3. cat /var/lib/dhcpd/dhcpd.leases
   
4. 
   
5. 
   
6. # The format of this file is documented in the dhcpd.leases(5) manual page.
   
7. # This lease file was written by isc-dhcp-4.3.6
   
8. 
   
9. # authoring-byte-order entry is generated, DO NOT DELETE
   
10. authoring-byte-order little-endian;
    
11. 
    
12. lease 192.168.1.201 {
    
13.   starts 5 2024/07/26 08:12:45;
    
14.   ends 5 2024/07/26 08:22:45;
    
15.   tstp 5 2024/07/26 08:22:45;
    
16.   cltt 5 2024/07/26 08:12:45;
    
17.   binding state active;
    
18.   next binding state free;
    
19.   rewind binding state free;
    
20.   hardware ethernet 00:e0:4c:bc:0c:bd;
    
21.   uid "\001\000\340L\274\014\275";
    
22.   set vendor-class-identifier = "MSFT 5.0";
    
23.   client-hostname "SP-202308022222";
    
24. }
    
25. server-duid "\000\001\000\001.6\003a\000\361\363\273\003\";
    
26. 
    

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CentOS,DHCP,Server架設

打開防火牆
TCP PORT 67
https://www.server-world.info/en/note?os=CentOS_8&p=dhcp&f=1