最近,我发现了一个具有以下代码的站点:
<link rel="dns-prefetch" href="//ajax.googleapis.com">
在查一查中,它说它习惯于Reduce DNS lookup time by pre-resolving at the browser.
所以我的问题是,除了(希望)让网站感觉更快,它有没有其他影响SEO或网站一般?
当我使用此工具检查SMTP配置时:
http://mxtoolbox.com
我们得到以下错误:
The hostname was not found in the reverse dns lookup. In other words, the PTR for
your server IP address (reverse lookup) does not match the DNS name (forward lookup).
即使他们都是mail.domain.ext
我还应该查些什么?
谢谢。
每次运行类似于cm status的命令时,我都会得到以下提示
cs:630@rep:MyServer@repserver:ssl://<obfuscated>:8088
WARNING: the secure connection hostname provided in the server
certificate doesn't match the server's hostname. This means that the
certificate was not issued to this hostname or that there is a net
我使用跟踪到远程服务器IP地址:
C:\Users\lll>tracert 103.224.19.11
Track by up to 30 hops
The route to f1.FF-SALE.COM [103.224.19.11]:
1 44 ms 44 ms 44 ms f1.FF-SALE.COM [103.224.19.11]
The tracking is complete.
在那里我得到了信息。
我有两个问题:
为什么只有一跳?
f1.FF-SALE.COM [103.224.19.11]的含义是什么?tracert会查询IP的域吗?我也无法访问的域。
但我也
好的,所以站点是由广域网分隔的
Domain : production.contoso.local
SITE A
Site network: 192.168.0.0/16
Site DCs : DC1-SiteA, DC2-SiteA
Client : serverA
SITE B
Site network: 172.16.0.0/16
Site DCS : DC1-SiteB, DC2-SiteB
Client : serverB
随
我尝试在我的centos服务器上安装samba,它向我展示了以下代码:
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=i386&repo=os error was
[Errno 4] IOError: <urlopen error (-2, 'Name or service not known')>
我在
我想像myname@mydomain.in一样创建自己的邮件ID,而不是向谷歌支付额外的邮件ID,因为我已经拥有了myname@mycompany.in。
我拥有的是mydomain.in(我为这个域名付费,这个domain.in指向我们的暂存服务器,比如IP xx.xx),系统上有Ubuntu服务器。
当安装后缀服务器时,我尝试了安装后缀
Internet site: mydomain.in.
Root and postmaster mail recipient: root
mydestinations: mydomain.in, localhost.example.com, local