hda modem

ADSL is the mainstream form of broadband Internet access. Next we will introduce some maintenance methods that often encounter faults when using ADSL for Internet access, hoping to help you.I. Why is the ADSL indicator normal? The most important indicator of ADSL is "ADSL. When there is no problem with the ADSL line, the light should be green.However, some users will also be disconnected when the "ADSL" indicator is normal, and restart the MODEM. This

Asyuncrical Digital Subscriber Loop Asymmetric Digital user line loop (ADSL) is a member of the XDSL family and is hailed as "express on modern information highway" by Western countries ". Because of its high downlink speed, high frequency bandwidth, and excellent performance, it is favored by many users and has become another new and faster and more efficient access method after modem and ISDN, it is also the most widely used access method in China.

1./bin CatalogueThe bin is an abbreviation for binary (binary). This directory inherits the structure of the UNIX system and stores the binary executable commands most often used by the user. such as CP, LS, cat, and so on.2./Boot DirectoryHere are some of the core files used when starting Linux. /Boot directory holds the files used by the boot loader (bootstrap loader), such as Lilo, and the core image is often placed here, rather than in the root directory. But if there are many core images, t

After the upgrade of the sound card suddenly can not use, find a lot of methods, and finally reinstall ALSA Drive solution. Back up for later use. You can refer to the compile alsa-utils here when there are errors, to install Xmlot, with the new profit search installation can be 1157 sudo gedit/etc/modprobe.d/alsa-base.conf 1160 CD alsa/alsa-driver-1.0.23/ 1161 ls 1162./configure--with-cards=hda-intel 1163 make 1164 sudo make 1165 sudo make install

Voice at command reference Note:Some modem do not have the voice communication function. The following table lists the voice AT commands that your modem can understand, including the Sound Amplifier command and the Tam command. Each Command description includes the command name, explanation, and related parameters. Remember:Your modem must be in Microsoft Windo

Hardware The connector is loose, the network cable is disconnected, the hub is damaged, and the computer system is faulty. For the above faults, you can observe the Modem, Hub, or computer indicators to help locate and replace suspected devices. Voltage is not normal, temperature is too high, lightning strikes-the voltage is not stable, it is best to configure the Modem with a small power UPS uninterruptibl

and modes) and cannot be created manually. You can mount the devpts File System to the/dev/PTS directory by using the appropriate mount option (usually mode = 0620, gid = Are you surprised? Why are there no devices such as/dev/hda not commonly used? The reason is that, starting from version 2.6.19, the kernel has introduced a new ata driver to uniformly use the SATA/PATA hard drive with/dev/sd? So/dev/HD? There is no need to exist. Specifically, you

13.3 inch superfine xga tft ultra-dazzling screen with a resolution of 1024x768. The s6240 keyboard is designed with 84 key bits. The key width is 19mm and the key depth is 3mm. The touchpad supports vertical and horizontal scrolling. The Fujitsu s6240 has a set of audio and video control keys at the top of the keyboard to enable playback, pause, stop, next, and previous functions. In addition, there is a row of working status indicators on the left side of the audio and video control

and other files are present. If you do not find a sound card type in the kernel configuration, you can try to configure it in a SoundBlaster-compatible way, and you can download the OSS (Open Sound System) or Ossfree, which is commercial software, although the trial version can be constantly soundoff/ Soundon, after all, very troublesome. The 2.2.12x kernel supports some new sound cards, especially PCI sound cards, to try. 11, after compiling the core, reboot can not automatically load the soun

(entire disk) ... /dev/sdav = 48th SCSI disk (entire disk) 0 =/dev/i2c-0 1th I2C Adapter 1 =/dev/i2c-1 2nd I2C Adapter ... Virtual block device (same partition mode as SCSI disk) 0 =/dev/ubda 1th user mode block device =/DEV/UDBB 2nd user mode block device. Block Audit (Audit) Equipment 0 =/dev/audit Audit (Audit) device 128-135 Char Unix98 PTY Master These devices should not have device nodes, but should be visited through the/DEV/PTMX interface Ask. 136-143 Char Unix98 PTY Sla

available for chattr. In addition to the two parameters described above I attribute: This file cannot be modified, deleted, or renamed. C attribute: when saving the file, compress the file. There are many other parameters. You can refer to the chattr help. Then let's talk about shred. Using shred/dev/hda can immediately remove your hard disk data and never exceed the limit. Of course, use the correct device file on your hard disk. By default, vario

. Generally, only the Virtual Console is listed, so that it is impossible (at least difficult) to break into the system through a modem or network and obtain super user privileges.16./etc/shells: list the shells that can be used. The chsh command allows you to change the logon shell within the specified range of this file. The ftpd service process that provides a machine f t p service checks whether the user s h e l is listed in the/etc/shells file. i

updated automatically by the Mount command. Used when a list of currently installed file systems is required (for example, the DF command)./etc/shadow: Shadow password file on a system with Shadow (shadow) password software installed. The shadow password file moves the encrypted password in the/etc/passwd file to/etc/shadow, which is readable only by the superuser (root). This makes it more difficult to decipher the password, which increases the security of the system.configuration file for the

/shadow Shadow password file on a system with Shadow (shadow) password software installed. The shadow password file moves the encrypted password in the/etc/passwd file to/etc/shadow, which is readable only by the superuser (root). This makes it more difficult to decipher the password, thus increasing the security of the system. (12). /etc/login.defs The configuration file for the login command.(13). /etc/printcap Similar to/etc/termcap, but for printers. syntax is different.(14). /etc/profile,/E

sound card is not driven (some PCI sound cards may be different in 2.2.127). Check whether files such as/dev/audio/dev/dsp/dev/mixer exist. If the Sound card type cannot be found in the Kernel configuration, you can try to configure it in the SoundBlaster compatible mode. If not, you can download OSS (Open Sound System) or OSSFree, Which is commercial software, although the trial version does not stop soundoff/soundon, It is very troublesome. 2.2.12x kernel supports some new sound cards, especi

the system. 12./etc/login. defs: configuration file of the login command. 13./etc/printcap: similar to/etc/termcap, but for printers. Different syntaxes. 14./etc/profile,/etc/csh. login,/etc/csh. cshrc: files that are logged on or executed by bourne or cshells at startup. This allows the system administrator to create a global default environment for all users. 15./etc/securetty: confirm the security terminal, that is, the terminal that allows the Super User (root) to log on. Generally, only th

/login.defs:login command./etc/printcap: Similar to/etc/termcap, but for printers. syntax is different./etc/profile,/etc/csh.login,/ETC/CSH.CSHRC: Files that are executed Bourne or cshells at logon or startup. This allows the system administrator to establish a global default environment for all users./etc/securetty: Confirm the security terminal, that is, which terminal allows superuser (root) to log in. Only virtual consoles are generally listed, which makes it impossible (at least difficult)

the security of the system.configuration file for the./etc/login.defs:login command./etc/printcap: Similar to/etc/termcap, but for printers. syntax is different./etc/profile,/etc/csh.login,/ETC/CSH.CSHRC: Files that are executed Bourne or cshells at logon or startup. This allows the system administrator to establish a global default environment for all users./etc/securetty: Confirm the security terminal, that is, which terminal allows superuser (root) to log in. Only virtual consoles are genera

=/dev/hda bs = 446 count = 1 Restore the original MBR. (Note: Although boot. NNNN has 512 bytes, only the first 446 bytes can be restored to MBR .) 　　 2. boot = boot-device Specify a device used to install LILO. Generally, LILO can be installed in the following places: MBR: The primary boot area of the first hard disk, corresponding to/dev/hda,/dev/sda, etc. Root: Super block of the Linux Root partition ),

/dev/SDA, the first SCSI tape drive is/dev/st0, and the first CD-ROM will be/dev/cd0. In addition, FD is a floppy disk and the device name is/dev/fd0 and/dev/fd1. Network DeviceIn Linux, the ethernet card is usually named eth0, eth1, etc. When an Ethernet Card is detected, it is designated as the first available Interface Card Name, usually eth0. HoweverLinux network devices may not be associated with special files in the/dev directory. Do not be surprised if you cannot find them in/dev. You onl