Linux hostname and fqdn (FullyQualifiedDomainName) have been confused for a long time. Today, I will use the script home platform to find out their usage details and share them with you the Linux hostname and fqdn (Fully Qualified Domain Name) I have been confused for a long time. Today I am taking the time to find out
not cause errors, because the hostname has been set as an IP address.
The following describes how to obtain a hostname from an ip address in python shell. | obtains an ip address based on the hostname.
Use the gethostbyname function in the socket module
Method 2 use the hostname command in shell
Design Concept ##
Sometimes the socket is unstable, and the specific cause is to find out
Objective: To obtain the hostname Based on the ip address (improv
DNS protocol resolves the contents of the hostname, and when it is found to be an IP address, the/etc/hosts file is no longer queried.Using Python again, you will find that the FQDN obtained by Python is still florian.test.com!!!$ pythonpython2.6.3 Mr266:84292, Dec72011,20:48: 22) [GCC 4.4. 6 20110731 (Red Hat 4.4. 6-3)] on linux2type "help", " Copyright ", or " license " for more information. >>> import
fqdnfully qualified domain name abbreviation, meaning complete domain name.
For example, the console hostname (hostname) www, domain suffix (field) example.com, the host FQDN should be www.example.com. Question, in fact the FQDN "."
At the end, the application server allows you to ignore points. Linux allows users to view and set host names through the hostname command. The user hostname-f commands the
Many applications will involve FQDNsWhat is the difference between a fqnd and a host that the salt gets to be different?The FQDNYou can ' t change the FQDN (as returned by hostname--fqdn) or the DNS domain name (as returned by DnsDomainName) with this Command. The FQDN ofThe system is the name of the resolver (3) returns for the host name.The Technically:the
FQDN refers to FullQualifiedDomainName. On a Linux host, you must set the/etc/hostname and/etc/hosts files. For example, add a line 10.150.140.103gitlab.bigdata.letv.cngitlab to the/etc/hostname server of my new configuration with gitlab/etc/hosts under
FQDN refers to Full Qualified Domain Name. On a Linux host, you need to set the/etc/hostname and/etc/hosts files.
For example, on my new server
/Etc/host
For some type of setups, if network connections not available during startup process, exim4 takes long time to start. To solve this problem, you must useDC_minimaldnsOption of exim4. you can also configure this feature
Dpkg-reconfigure exim4-config
On Debian based systems. You shoshould answerYesFor the question"Keep number of DNS-queries minimal?"
However, ifHostname -- fqdnCommand doesn't print a full qualified hostname (actually only checked one dot) exim4 gives a warning and dc_minimaldns f
In the past, we had to set up the email system. Currently, the complete FQDN name must be set for Puppet. Different operating systems are different. View [root @ rdo ~] # Hostnamewww [root @ rdo ~] # Hostname-fwww.server110.com to achieve this effect, you need to modify the two files to edit/etc/sysconfig/ne before engaging in the mail system, this is the content that must be set. Currently, the complete FQDN
1. vim/etc/httpd/conf.d/vhost1.conf Create the Vhost1.conf file and enter the following contentServerName www1.magedu.comDocumentroot/data/vhosts/www1Customlog Logs/www1-access_log combined2. vim/etc/httpd/conf.d/vhost2.conf Create the Vhost2.conf file and enter the following contentServerName www1.magedu.comDocumentroot/data/vhosts/www1Customlog Logs/www2-access_log combinedUsing HTTPD-T to detect syntax with or without errors3. Another machine edit etc/hosts fileSettings: 192.168.1.28 www1.mag
The FQDN is the abbreviation for fully qualified domain name, meaning the full domain name. For example, if a machine hostname (hostname) is www and the domain suffix is example.com, the FQDN of the host should be www.example.com. In addition, the FQDN is in fact the "." To the end, but most applications and servers allow the last point to be ignored.Linux allows
Set hostname#
In fact I am also curious about why VPS needs to be set hostname. The estimate is for attractiveness, or portability. For example, before setting, hostname-v display is li-memeberxxx and so on, set up, the host name appears personalized, another change server, host name will not change-this is just my guess.OpenSUSE setting hostname is slightly closer to the Ubuntu section in the Linode tutorial:sudo vi/etc/hostname– creates a hostname file in which to enter the orchid, the name y
A virtual host can coexist with multiple sites. When the site has little traffic, multiple sites can run on one physical host to save resources (IP addresses and physical hosts.
1. IP-based VM:
To implement a VM, you must first comment out the
The two-fork search tree is described earlier, and he has no problem with the efficiency of finding and inserting in most cases, but he is less efficient in the worst case. The data structure of the balanced lookup tree introduced in this article and later in this article ensures that the LGN efficiency can be achieved in the worst case, and we need to make sure that the tree remains in equilibrium after the insert is complete, which is the Balanced search tree. In a tree with n nodes, we want t
Use the find/find-all match method to find the list element. find-allmatchFind a sublist in the list
Assume that the database contains several rows of records. The returned results of the newlisp mysql module use a list to indicate these rows of records. Each element is a list containing a row of records, each record l
View
Copy Code code as follows:
[Root@rdo ~]# hostname
Rdo
[Root@rdo ~]# Hostname-f
Rdo.test.com
To achieve this effect, you need to modify two files
Edit/etc/sysconfig/network, you need to join a line, remember hostname, must
Find a sub list in listAssuming that there are several rows of records in the database, the newLISP MySQL module returns the result is a list representing this number of rows of records, and then each element is a list, which contains a row of records, each row of records list contains a number of lists, Each list has two elements: a field name and a field value.Now we can use the Find method to
Our commonly used file search feature on Windows looks simple, but often finds it troublesome to find a file on Linux!According to the habits of personal use, I found: I would like to find a file in the general situation will know these parts, one is the file approximate scope, the second is the file name of a character or keyword, the third is the suffix. And, in the process of using Linux, we usually just
1. the following error occurs during Firefox Compilation:
/Usr/bin/ld: cannot find-lpthread
/Usr/bin/ld: cannot find-lstdc ++
/Usr/bin/ld: cannot find-LM
/Usr/bin/ld: cannot find-lC
Strange, this is the most basic development library, and it is not installed?
2. According to the prompt information before
How to implement multiple find boxes just fill in at least one find content to find
Apply.html
Crms-new Classroom Entry
2.php
Crms-new Classroom Entry Results
Create short variable names
$Cno =$_post[' Cno '];
$CID =$_post[' CID '];
if (! $Cno) {$Cno = "%";}
if (! $CID) {$CID = "%";}
if (!GET_MAGIC_QUOTES_GPC ()) {
$Cno = Addslashes ($
An order to explainCommon example:find Path-option [-print] [-exec-ok command] {} \;The directory path that the Path:find command looks for. For example, use. To represent the current directory, and/to represent the system root directory.The-print:find command outputs the matched file to standard output.The-exec:find command executes the shell command given by the parameter to the matching file. The corresponding command is in the form of ' command ' {} \;, note the space between {} and \;-ok: T
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