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network:clear_dns [2016/06/23 06:50]
eServices Greece 		network:clear_dns [2021/11/11 07:03]
eServices Greece
Line 1: Line 1:
-===== Clear DNS =====  
 {{howhard>1}} {{howhard>1}}
 +====== Clear DNS ======
 +===== Operating Systems =====
 ==== Windows ==== ==== Windows ====
 === XP, 2000, VISTA, 7, 8, 8.1, 10 === === XP, 2000, VISTA, 7, 8, 8.1, 10 ===
 Open a Command Prompt with Administrative Privileges and type Open a Command Prompt with Administrative Privileges and type
-^ ^ ^ +  * <sxh>ipconfig /flushdns</sxh>
-| <sxh>ipconfig /flushdns</sxh> | <clippy>ipconfig /flushdns</clippy> |+
  
 ==== MAC OS ==== ==== MAC OS ====
 === 10.10 === === 10.10 ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ + 
-| <sxh>sudo discoveryutil mdnsflushcache</sxh> | <clippy>sudo discoveryutil mdnsflushcache</clippy> |+  * <sxh>sudo discoveryutil mdnsflushcache</sxh> 
 +  * <sxh>sudo dscacheutil -flushcache</sxh>
  
 === 10.7, 10.8, 10.9 === === 10.7, 10.8, 10.9 ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ +  * <sxh>sudo killall -HUP mDNSResponder</sxh> 
-| <sxh>sudo killall -HUP mDNSResponder</sxh> | <clippy>sudo killall -HUP mDNSResponder</clippy> |+  * <sxh>sudo dscacheutil -flushcache</sxh>
  
-=== 10.5, 10.6 ===+=== 10.2, 10.3, 10.4, 10.5, 10.6 ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ +  * <sxh>sudo dscacheutil -flushcache</sxh>
-| <sxh>sudo dscacheutil -flushcache</sxh> | <clippy>sudo dscacheutil -flushcache</clippy> |+
  
 ==== Linux ==== ==== Linux ====
 +
 +=== systemd ===
 +Open a Terminal and type
 +* <sxh>resolvectl flush-caches</sxh>
  
 === nscd === === nscd ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ ^ +  * Restart service <sxh>service nscd restart</sxh> 
-| Restart service | service nscd restart | <clippy>service nscd restart</clippy> | +  * Reload Service <sxh>service nscd reload</sxh>
-| Reload Service | service nscd reload | <clippy>service nscd reload</clippy> |+
  
 === dnsmasq === === dnsmasq ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ ^ +  * Restart service <sxh> service dnsmasq restart</sxh>
-| Restart service | service dnsmasq restart | <clippy>service dnsmasq restart</clippy> |+
  
 === BIND === === BIND ===
 Open a Terminal and type Open a Terminal and type
-^ ^ ^ ^ +  * Restart service <sxh>rndc restart</sxh> 
-| Restart service | rndc restart | <clippy>rndc restart</clippy> | +  * Flash specific domain <sxh>rndc flushname domain.tld</sxh> 
-| Flash specific domain | rndc flushname domain.tld | <clippy>rndc flushname </clippy> | +  * Flash view (LAN) <sxh>rndc flush lan</sxh> 
-| Flash view (LAN) | rndc flush lan | <clippy>rndc flush lan</clippy> |+ 
 +===== Routers ===== 
 + 
 +==== CISCO ==== 
 +=== IOS === 
 +Switch to enable mode 
 +  * Clear specific domain <sxh>clear host domain.tld</sxh> 
 +  * Clear all domains <sxh>clear host *</sxh> 
 + 
 +==== Juniper ==== 
 +=== JunOS === 
 +  * Clear all domains <sxh>clear dns</sxh> 
 +  * Clear specific domain <sxh>clear security dns-cache domain.tld</sxh> 
 + 
 +==== FritzBox ==== 
 +<WRAP center round info 60%> 
 +The latest versions of the firmware do not allow for telnet, in those cases a router restart is required 
 +</WRAP> 
 + 
 +Enable Telnet mode by dialing: #96*7* 
 +Connect with a telnet client to the router and type 
 +  * Stop DNS Service <sxh>multid -s</sxh> 
 +  * Start DNS Service <sxh>multid</sxh> 
 + 
 +===== Other Hardware ===== 
 +==== Synology ==== 
 +=== DSM 6 === 
 +As a root user use the following to restart named. 
 +<sxh>synoservice --restart pkgctl-DNSServer</sxh> 
 + 
 +=== DSM 7 === 
 +As a root user use the following to restart named. 
 +<sxh>systemctl restart pkgctl-DNSServer.service</sxh> 
 + 
 +===== Web Browsers ===== 
 +==== Google Chrome ==== 
 +Visit the following URL 
 +<sxh>chrome://net-internals/#dns</sxh> 
 +In the page click on the Clear host cache button. 
 + 
 +==== Microsoft Edge ==== 
 +Visit the following URL 
 +<sxh>edge://net-internals/#dns</sxh> 
 +In the page click on the Clear host cache button.