Computer can login QQ, but can not browse the Web, solution summary"Note": For reference only, personal experienceThis morning, the computer suddenly can only log on QQ, can not surf the internet, never encountered this problem I began various Baidu
Many people may encounter this situation, sometimes visited the site is now suddenly unable to find the server, this is why? This is the impact of the DNS cache, because after the first visit to the Web site will have a certain amount of time after
This article illustrates the Java implementation method to clean up DNS cache. Share to everyone for your reference. The specific analysis is as follows:
First, test environment
Os:windows7 x64
Jdk:1.6.0_45
Second, I found four ways to clean up
DNS service to fill in the record,1) About: servername in the configuration/etc/resolv.conf of the secondary DNS server points to itself.SlavesVim/etc/named.rfc1912.zones"Add changes to"Zone "Hxl.com" in {Type slave;Masters {172.25.254.206;};File
"DNS details in 06-linux (iii)"
Nine, configure the master-slave DNS server to implement domain name resolution fault tolerance
1. Experimental environmentZhangyujia.com (192.168.80.100) is the primary zone, and COM (192.168.80.200) is
Investigate how CVE-2015-5477 & CloudFlare Virtual DNS protects its users
Last week, ISC released a patch to fix a remote vulnerability in the BIND9 DNS server. This vulnerability causes the server to crash when processing a certain data packet.The
Accidentally saw an article about Nodejs sending an HTTP request does not cache DNS results. This means that if you write an HTTP capture program based on Nodejs, not providing DNS caching will allow each request to be silly repeatedly resolved
Analysis on DNS caching in Nodejs and nodejsdns Cache
I accidentally saw an article about sending http requests under nodejs without caching dns results. This means that if you write an http collection program based on nodejs and do not provide dns
1. First, we also press the Win7 flagship computer keyboard Win+r shortcut to open the computer's running window, in the open running window, we enter CMD and click Enter, so you can open the Win7 flagship computer command Prompt window.
2. In
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