1. Slow logon via telnet: CD/etc VI resolv. conf clears the content
2. the root user cannot log on remotely. For details, see CD/etc CD Pam. d vi login to comment out this line # auth required pam_securetty.so // comment out this line
3. Mount the USB mobile hard drive and mount the mobile hard drive.
# DF view the hard drive letter Mount/dev/sda1/mnt/USB in Linux (example)
5. Change the graphic interface or character interface when Linux is started. CD/etc VI inittab: ID: 5: initdefault: 5 indicates the default graphic interface. Change ID: 3: initdefault: 3 to indicate the character interface.
8. Configure the IP addresses that SMB can use.
CD/etc/samba VI smb. conf Find hosts allow = 192.168.1. 192.168.2. 127. Which machines are used to modify them? Note that IP addresses are separated by commas For example: hosts allow = 192.168.1.110, 192.168.1.120
9. disable restarting the machine CD/etc/inittab VI inittab in the background using the CTRL-ALT-DELETE find the following line in the file # trap CTRL-ALT-DELETE CA: ctrlaltdel: /sbin/shutdown-T3-R now (comment out this line)
For example: # trap CTRL-ALT-DELETE # CA: ctrlaltdel:/sbin/shutdown-T3-R now
10. Modify the host name VI/etc/sysconfig/network and set hostname to hostname = Host Name.
12. view the boot detection hardware dmesg | more
13. View hard disk usage DF-m
14. view the directory size Du-SH dirname
15. Unzip the full tar xvfj lichuanhua.tar.bz2 tar xvfz lichuanhua.tar.gz tar xvfz lichuanhua. tgz tar xvf lichuanhua.tar unzip lichuanhua.zip
16. Display memory usage free-m