What service uses Nsswitch conf?
The /etc/nsswitch. conf file defines the search order of the network databases. The Solaris installation program creates a default /etc/nsswitch. conf file for the local machine, based on the name service you indicate during the installation process.
What does etc Nsswitch do?
The /etc/nsswitch. conf file is used to configure which services are to be used to determine information such as hostnames, password files, and group files. The last two ones, password files, and group files in our case are not used, since we don’t use NIS services on our server.
What is a Nsswitch conf?
The Name Service Switch (NSS) configuration file, /etc/nsswitch. conf, is used by the GNU C Library and certain other applications to determine the sources from which to obtain name-service information in a range of categories, and in what order. Each category of information is identified by a database name.
What are NSS modules?
The Name Service Switch (NSS) connects the computer with a variety of sources of common configuration databases and name resolution mechanisms.
How do I fix etc passwd?
The steps:
- Boot to live Ubuntu session;
- Open a terminal or a tty and type in the command: sudo fdisk -l.
- Mount the device, sudo mount /dev/sdXY /mnt.
- cd to the target systems /etc directory: cd /mnt/etc.
- Use the backup file to restore, and set the appropriate permissions: sudo cp passwd- passwd sudo chmod 644 passwd.
Can I modify etc passwd?
The best way to edit /etc/passwd, or shadow or group file is to use vipw command. Traditionally (under UNIX and Linux) if you use vi to edit /etc/passwd file and same time a user try to change a password while root editing file, then the user’s change will not entered into file.
What is use of ETC resolv conf?
It is used to configure dns name servers. The file /etc/resolv. conf file contains information that is read by the resolver routines the first time they are invoked by a process. The file is designed to be human readable and contains a list of keywords with values that provide various types of resolver information.
What is the difference between ETC hosts and DNS?
The difference is that /etc/hosts is STATIC whereas DNS is DYNAMIC. DNS lookups are good for a specified time period after which the client will re-query. DNS servers can also be smart about what they return – acting as simple load spreaders for example or failing over to backup servers.
How does nsswitch compat mode work in Linux?
In the original (pre-Linux) implementation of NIS, some configuration files (the /etc/passwd and /etc/group files in particular) had to be configured to “invite in” the contents of the corresponding NIS maps. The invitation was extended by inclusion of special incantations in the files themselves.
How to use compat mode in Solaris 9?
passwd compat passwd_compat files nis In this structure, the Passwd database is in compatibility mode, and by using the (+/-) symbol in the passwd and shadow files, servces will search for data in files, then NIS. Based on the Solaris 9 Basic Library Reference, compat is provided for NIS only. Discouraged “compat” mode #
How is nsswitch.conf used in LDAP?
The /etc/nsswitch.conf is used to list the available databases along with a hierarchical order of locations to search. Below is an example: In this structure, data for the passwd database can be located in either files or ldap. NIS, however, cannot search for data in more than one location using nsswitch.conf.
Is there a central config file for nsswitch?
This approach was never very well liked, and it has been superseded by a central config file, /etc/nsswitch.conf, that allows an explicit search path to be specified for each type of administrative information.
