Cheatsheet: Difference between revisions
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* This means "try files (/etc/hosts); and if it fails, try DNS." |
* This means "try files (/etc/hosts); and if it fails, try DNS." |
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* i.e. If the host name is not found there, then consult the remote DNS name servers identified by the /etc/resolv.conf file. |
* i.e. If the host name is not found there, then consult the remote DNS name servers identified by the /etc/resolv.conf file. |
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* |
* This order could be changed or expanded. |
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* As a single file, it doesn't scale well: the size of the file becomes too big very soon. |
* As a single file, it doesn't scale well: the size of the file becomes too big very soon. |
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Override addresses that your DNS server provides |
Override addresses that your DNS server provides |
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Control access to network traffic |
Control access to network traffic |
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* IP-to-hostname conversion usually display only the first name found: |
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192.168.10.12 server.example.com myftp.example.com myhost myftp |
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$ ping myftp |
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PING myhost.example.com (192.168.10.12) 56(84) bytes of data. |
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64 bytes from myhost.example.com (192.168.10.12): icmp_seq=1 ttl=64 time=0.023 ms |
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64 bytes from myhost.example.com (192.168.10.12): icmp_seq=2 ttl=64 time=0.028 ms |
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Note that we pinged myftp but results come from host myhost. This is a reliable hint that you are addressing an alias, not the actual host. |
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== Check CPU, Memory and HDD == |
== Check CPU, Memory and HDD == |
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