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校園網(wǎng)絡安全整體項目解決方案(存儲版)

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【正文】 T)功能。另一個適用硬件防火墻的場合是,用戶希望隔離防火墻服務,不把防火墻安裝在其他應用中?;谟布姆阑饓σ卜譃榧彝マk公型和企業(yè)型兩種款式?! ∏度胧椒阑饓σ脖环Q為阻塞點防火墻。四臺Cisco防火墻實現(xiàn)VPN網(wǎng)絡其實四臺Cisco防火墻的VPN同兩臺防火墻做VPN沒什么大的區(qū)別,只是一定要注意路由的配置;在四臺Cisco pix做VPN中,有兩種方式,一種是采用一個中心的方式,另一種就是分散式的,前者,也就是說以一個PIX點為中心,其它的機器都 連到本機上,在通過本機做路由;后者,則是在每一個路由上都要寫出到另外三臺的加密方式,這里采用的就是第一種類型;  以下,是施工圖以及四個Cisco pix的詳細配置:  詳細配置如下:  中心pix1:  : Saved  : Written by enable_15 at 23:10: UTC Thu Apr 24 2003  PIX Version (2)  nameif ethernet0 outside security0  nameif ethernet1 inside security100  enable password NHvIO9dsDwOK8b/k encrypted  passwd NHvIO9dsDwOK8b/k encrypted  hostname pixfirewall  fixup protocol ftp 21  fixup protocol 80  fixup protocol h323 h225 1720  fixup protocol h323 ras 17181719  fixup protocol ils 389  fixup protocol rsh 514  fixup protocol rtsp 554  fixup protocol smtp 25  fixup protocol sqlnet 1521  fixup protocol sip 5060  fixup protocol skinny 2000  names  accesslist 101 permit ip   accesslist 101 permit ip   accesslist 101 permit ip   accesslist 101 permit ip   accesslist 101 permit ip   accesslist 101 permit ip   accesslist hyzc permit icmp any any  accesslist hyzc permit tcp any any  accesslist hyzc permit udp any any  pager lines 24  interface ethernet0 auto  interface ethernet1 auto  mtu outside 1500  mtu inside 1500  ip address outside   ip address inside   ip audit info action alarm  ip audit attack action alarm  pdm history enable  arp timeout 14400  nat (outside) 1 0 0  nat (inside) 1 0 0  accessgroup hyzc in interface outside  route outside 1  route inside 1  route outside 1  route outside 1  route outside 1  route outside 1  route outside 1  route outside 1  timeout xlate 3:00:00  timeout conn 1:00:00 halfclosed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 sip 0:30:00 sip_media 0:02:00  timeout uauth 0:05:00 absolute  aaaserver TACACS+ protocol tacacs+  aaaserver RADIUS protocol radius  aaaserver LOCAL protocol local  no snmpserver location  no snmpserver contact  snmpserver munity public  no snmpserver enable traps  floodguard enable  sysopt connection permitipsec  no sysopt route dnat  crypto ipsec transformset strong espdes espshahmac  crypto map tohyjt 20 ipsecisakmp  crypto map tohyjt 20 match address 101  crypto map tohyjt 20 set peer   crypto map tohyjt 20 set peer   crypto map tohyjt 20 set peer   crypto map tohyjt 20 set transformset strong  crypto map tohyjt interface outside  isakmp enable outside  isakmp key cisco address netmask   isakmp key cisco address netmask   isakmp key cisco address netmask   isakmp identity address  isakmp policy 9 authentication preshare  isakmp policy 9 encryption des  isakmp policy 9 hash sha  isakmp policy 9 group 1  isakmp policy 9 lifetime 86400  telnet inside  telnet inside  telnet timeout 5  ssh timeout 5  terminal width 80  Cryptochecksum:8982919a8bfa10ba09cddee3f2da0e6a  : end  pix2配置:  : Saved  : Written by enable_15 at 00:00: UTC Fri Apr 25 2003  PIX Version (2)  nameif ethernet0 outside security0  nameif ethernet1 inside security100  enable password encrypted  passwd encrypted  hostname HYZCrc  fixup protocol ftp 21  fixup protocol 80  fixup protocol h323 h225 1720  fixup protocol h323 ras 17181719  fixup protocol ils 389  fixup protocol rsh 514  fixup protocol rtsp 554  fixup protocol smtp 25  fixup protocol sqlnet 1521  fixup protocol sip 5060  fixup protocol skinny 2000  names  accesslist 101 permit ip   accesslist 101 permit ip   accesslist hyzc permit icmp any any  accesslist hyzc permit tcp any any  accesslist hyzc permit udp any any  pager lines 24  interface ethernet0 auto  interface ethernet1 auto  mtu outside 1500  mtu inside 1500  ip address outside   ip address inside   ip audit info action alarm  ip audit attack action alarm  pdm history enable  arp timeout 14400  nat (outside) 1 0 0  nat (inside) 0 accesslist 101  nat (inside) 1 0 0  route outside 1  timeout xlate 3:00:00  timeout conn 1:00:00 halfclosed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 sip 0:30:00 sip_media 0:02:00  timeout uauth 0:05:00 absolute  aaaserver TACACS+ protocol tacacs+  aaaserver RADIUS protocol radius  aaaserver LOCAL protocol local  no snmpserver location  no snmpserver contact  snmpserver munity public  no snmpserver enable traps  floodguard enable  sysopt connection permitipsec  no sysopt route dnat  crypto ipsec transformset strong espdes espshahmac  crypto map tohyzc 20 ipsecisakmp  crypto map tohyzc 20 match address 101  crypto map tohyzc 20 set peer   crypto map tohyzc 20 set transformset strong  crypto map tohyzc interface outside  isakmp enable outside  isakmp key cisco address netmask   isakmp identity address  isakmp policy 9 authentication preshare  isakmp policy 9 encryption des  isakmp policy 9 hash sha  isakmp policy 9 group 1  isakmp policy 9 lifetime 86400  telnet inside  telnet timeout 5  ssh timeout 5  terminal width 80  Cryptochecksum:f63109daf8abcaf74a4f3b30ab01b48a  : end      pix3配置:  : Saved  :  PIX Version (1)  nameif ethernet0 outside security0  nameif ethernet1 inside security100  enable password X8QPBTnOSyX6X9Y9 encrypted  passwd X8QPBTnOSyX6X9Y9 encrypted  hostname pixfirewall  fixup protocol ftp 21  fixup protocol 80  fixup protocol h323 1720  fixup protocol rsh 514  fixup protocol smtp 25  fixup protocol sqlnet 1521  fixup protocol sip 5060 企業(yè)級防火墻選購熱點防火墻是主要的網(wǎng)絡安全設備,一個配置良好的防火墻,能夠有效地防止外來的入侵,控制進出網(wǎng)絡的信息流向和信息包,提供使用和流量的日志和審計,隱藏內部IP地址及網(wǎng)絡結構的細節(jié),以及提供VPN功能等等?! ?2)服務方面,對服務器進行定期掃描與加固、對防火墻日志進行備份與分析、對入侵檢測設備的日志進行備份、建立設備備份系統(tǒng)以及文件備份系統(tǒng)?! ∫陨鲜羌夹g支持解決方案,技術支持是安全服務的重要補充部分,即使在完善的安全體系下,也存在不可預測的因素導致網(wǎng)絡故障,此時,需要及時、有效的技術支持
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