Có 35+ tài liệu thuộc chủ đề "kĩ thuật linux"
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Change ‘localhost’ to reflect the name of the IMAP server. T I P If you can’t see what you’re typing when you first start the SquirrelMail configuration tool, type c or C and press Enter to turn off the color display.. and Folder Defaults, which define the names, locations, and behavior of the standard IMAP mail folders.. At the prompt...
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Chapter 26: Keeping Your System Updated with up2date and the Red Hat Network. the Red Hat Network. Registering Your System with the Red Hat Network. Accessing the Red Hat Network with a Web browser. The Red Hat Network up2date agent is a program that is installed by default when you install Fedora Core or Red Hat Enterprise Linux. The Red...
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If you downloaded a bzip2 for- mat archive file, execute the following command:. If you down- loaded the gzip formatted archive, the proper command to use is:. Patching the Kernel. If you have already downloaded the main source code tree, you can save both bandwidth and time by downloading and applying patches. For example, if you downloaded the 2.6.11.6 kernel...
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Finally, in the Misc subsection, you can configure support for a basic sound driver for the (awful-sounding) PC speaker. In the Extended serial driver options subsection, you might want to enable two options: Support for sharing serial interrupts and Autodetect IRQ on standard ports. Of course, if you experience this problem, disable this option.. If you intend to use a...
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If device is omitted, fdisk lists the same information based on the contents of the file /proc/partitions . mkfs Creates a file system on a partition.. mkpartfs Creates a primary, logical, or extended partition by specifying the starting and ending size in MB and then creates a file system of a specified type on the newly created partition.. Most of...
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For example, the following command changes the user bubba ’s password to sekritword , using the --stdin option to passwd. One common way to take advantage of this feature is to disable an account by set- ting shell to /bin/false or another command that does not display a login prompt to the user. chage does not display the fields in...
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This chapter briefly recapped the power of the root account on a Red Hat Enterprise Linux system and showed you how to delegate some of that power to nonroot users using Sudo. They use the file extension .rpm . SRPMs have a .src.rpm file extension. Because RPM offers a rich feature set that makes it seem complex and difficult to...
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Once all of the tests are completed, configure uses the test results to create a number of Makefiles and a header file.. The following example shows the end of the build process’s output:. Depending on the size and complexity of the program you are building, make ’s output might be extensive. In other cases, as with bc , a special...
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free — Reports the amount of free and used memory in the system. The free command shows information about the amount of memory that is used and unused, including both physical RAM and swap space. The kernel keeps a certain amount of RAM available for I/O and memory buffers to facilitate I/O. The amount of buffer memory varies over time...
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The material in this chapter is introductory and intended to familiarize you with SELinux and the mandatory access control model on which it is built, and to show you how you can get started using SELinux features.. Policy-based access control, enforced in the kernel, makes it pos- sible to prevent root from accessing certain files, for example, while still main-...
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C A U T I O N Before logging out of this client system and configuring another, open a new login session to this host using the telnet or ssh commands to ensure that you can correctly log in using LDAP. This is the suggested default value, which you can change in your Kerberos configuration files. Kerberos is often referred...
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Eliminate the conflict by set- ting a jumper for one of the devices that causes it to use another IRQ. The following Web pages help you configure a PPP connection:. If setserial shows your modem’s UART as unknown , as you see in the following example, the kernel has not detected your serial port or the modem attached to it:....
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while.sh - Illustrate using Bash while loops declare -i CNT. while.sh illustrates several Bash programming features. Do not forget to delete the files the script creates!. case.sh - Using the case selection structure clear. echo “$OPT is an upper case letter”. echo “$OPT is a lower case letter”. echo “$OPT is a digit”. echo “$OPT is punctuation”. echo “What is...
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/etc/httpd/conf/httpd.conf file (continued). virtual server configuration, 537–539 /etc/httpd/conf/httpd.conf.rpm. /etc/httpd/conf/httpd.conf.rpm orig file, 892. /etc/httpd/conf/httpd.conf.rpm save file, 892. /etc/idmapd.conf file etc/inittab file etc/issue file, 168. /etc/issue.net file, 168–169 /etc/krb5.conf file etc/logrotate.d/named file,. /etc/mime.types file, 520 /etc/modprobe.conf file, 886 /etc/motd file, 168. /etc/named.conf file acl statement, 451, 455. zone statements etc/nsswitch.conf file. NIS client daemon setup, 330–331 /etc/ntp.conf file etc/passwd file. See also...
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See also RAID (Redundant Array of Independent Disks). See also performance. unpacking the source code, 772–773 srv directory, 144. See also kickstart. See also booting;. See also shutting down. See also system. See also backing up. See also IP addresses. See also specific protocols. See also date and time,. See also error messages boot problems, 899–900. See also kernel configuration...