Chapter 4 . Learning Basic Administration 137 File (Unable to start debugging on the web server)
Chapter 4 . Learning Basic Administration 137 File Description fstab Identifies the devices for common storage media (hard disk, floppy, CD-ROM, and so on) and locations where they are mounted in the Linux system. This is used by the mount command to choose which file systems to mount when the system first boots. group Identifies group names and group IDs (GIDs) that are defined on the systems. Group permissions in Linux are defined by the second of three sets of rwx (read, write, execute) bits associated with each file and directory. gshadow Contains shadow passwords for groups. host.conf Sets the locations in which domain names (for example, redhat.com) are searched for on TCP/IP networks (such as the Internet). By default, the local hosts file is searched and then any name server entries in resolv.conf. hosts Contains IP addresses and host names that you can reach from your computer. (Usually this file is used just to store names of computers on your LAN or small private network.) hosts.allow Lists host computers that are allowed to use certain TCP/IP services from the local computer. hosts.deny Lists host computers that are not allowed to use certain TCP/IP services from the local computer (doesn t exist by default). inittab Contains information that defines which programs start and stop when Linux boots, shuts down, or goes into different states in between. This is the most basic configuration file for starting Linux. lilo.conf Sets Linux boot loader (lilo) parameters to boot the computer. In particular, it lists information about bootable partitions on your computer. (If your distribution uses the GRUB boot loader, you may not see this file.) modules.conf Contains aliases and options related to loadable kernel modules used by your computer. mtab Contains a list of file systems that are currently mounted. mtools.conf Contains settings used by DOS tools in Linux. named.conf Contains DNS settings if you are running your own DNS server. ntp.conf Includes information needed to run the Network Time Protocol (NTP). passwd Stores account information for all valid users for the system. Also includes other information, such as the home directory and default shell. (Rarely includes the user passwords themselves, which are typically stored in the /etc/shadow file.) Continued
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