Lute3r.log

# ip dhcp pool [name] # network [대역대] [서브넷마스크] # default-router [게이트웨이 IP] # dns-server 168.126.63.1 # lease [8 / infinite] // 임대 시간 8일 , infinite 전원이 켜져있는 동안 # exit # ip dhcp excluded-address 10.10.10.250 10.10.10.254 // 제외할 IP 시작 과 끝

Subnet Calculator /24 Subnet Mask 255.255.255.0 Subnet 1 / Host 254 /25 Subnet Mask 255.255.255.128 Subnet 2 / Host 126 /26 Subnet Mask 255.255.255.192 Subnet 4 / Host 62 /27 Subnet Mask 255.255.255.224 Subnet 8 / Host 30 /28 Subnet Mask 255.255.255.240 Subnet 16 / Host 14 /29 Subnet Mask 255.255.255.248 Subnet 32 / Host 6 /30 Subnet Mask 255.255.255.252 Subnet 64 / Host 2 Online IP Subnet Calcu..

1. Ensure you are still logged in as root as per the last step above.2. Type cc at the prompt. This will take you to another prompt starting with 127.0.0.1 MAIN > 3. Type RAW. This will switch you to RAW mode. 4. Type system_password_reset 5. Browse to the WebAdmin Interface. You will notice it is now asking you to set the password. 6. Enter your new password into each box and hit Apply. You’ll ..

1. Ensure you have a monitor and a keyboard connected to the Sophos UTM and restart the UTM.2. Press the ESC key as the Sophos UTM starts to boot. You’ll soon see the GNU GRUB screen: 3. Ensure the current Sophos UTM version is highlighted (should be the top option). Do NOT select the ones that say ‘previous’ or ‘rescue’.4. Press the ‘e‘ key (don’t press Enter!).5. Use the arrow keys to highligh..

AAA Server ACL 설정

Router Config 내용 필터링 해서 보기 include - 해당 내용을 포함하는 config 라인 출력 ex) # show run | include ip route # show ip route | include 192.168.210.0 begin - 해당 내용 줄부터 config 출력 ex) # show run | begin router ospf # show run | begin ip route

빅 네트워크 디자인 요약 Chapter 1 데이터의 흐름 ES (End System) : 서버와 PC같은 끝에 달려있는 장치 IS (Intermediate System) : ES와 ES 사이에 오는 중간장치 : 라우터,LAN 스위치, WAN 스위치, Remote Access 보안장치 : 방화벽(Firewall), IDS(Intrusion Detection System), IPS(Intrusion Protection System), 바이러스월(Virus Wall) 로드 분산 장치 : L4 스위치, L7 스위치 네트워크 관리장치 : NMS, 진단 및 측정 장치 VoIP(Voice over IP) 장치 : IP PBX, 게이트키퍼, 게이트웨이, IP Centrex, Softswitch 대역폭 효율성 장치 : ..