Security code: Before departure All is just a dream, action after all the challenges
This section focuses on Linux infrastructure and samba server construction
Nineth Linux Basic network settings
First, view network parameters
1. View IP address information
Ipconfig (view events)
Parameters:-A (view all), eth0 (view eth0 only)
2. View Host Name
Hostname
3. View the routing table (default gateway)
Route-n or Netstat-rn
4. View TCP/UDP Port Information
NETSTAT-AUPTU (a table all, n table number, p table process id,t refers to tcp,u refers to UDP)
5. Tracking Network nodes
Traceroute
6. Test DNS resolution
Nslookup
Second, set the network parameters
1. Configure IP Address
Ifconfig eth0 IP Address
Ifconfig eth0:2 IP Address
2. Configure the default gateway
Route add default GW gateway address (ADD)
Route del default GW gateway address (DELETE)
Third, set the network parameters (fixed)
1. Modify the IP address and default gateway
/etc/sysconfig/network-scripts/ifcfg-eth0
Need to restart service to take effect: Services Network restart
or disable when enabled: Ifdown eth0;ifup eth0
2, modify the computer name (restart effective)
/etc/sysconfig/network
Modify the Hostname= host name
3. Modify preferred and alternate DNS address files
/etc/resolv.conf
4. Local hostname mapping file (effective immediately)
/etc/hosts
Iv. DHCP Services
1. Check if the service pack is installed
RPM-QA |grep DHCP
If not installed, insert the system installation CD
Must be overwritten after installation:CP /usr/share/doc/dhcp-4.1/dhcpd.conf.sampe (sampe file) /etc/dhcp/dhcpd.conf (main provisioning file)
2. Service Script
/etc/init.d/dhcp.d
Start Services: Service DHCPD start
3. Port number:
udp:67 (server)
udp:68 (client)
4. Troubleshoot errors, view logs
Tail-30/var/log/messages
Prevent conflicts, as shown in the notes:
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Chapter Tenth Samba file sharing service
First, the installation package
Rpm-ivh samba-3.x.x .....
Second, Samba services
1. Samba Server Main program
SMBD: Provides shared access to files and print resources in the server, TCP port numbers 139 and 445
NMBD: Provides resolution based on NetBIOS host name, UDP port number 138 and 137
2. Samba configuration directory and files
/etc/init.d/smb
3. Samba configuration directory and files
/etc/samba/smb.conf
III. Global configuration items for the master configuration file smb.conf
1. Security: Safety level, the available values are as follows:
Share (anonymous access)
User (local user authentication username and password)
Server (other Linux server Authentication)
Domain (Windows domain Controller authentication)
2. Meaning of common shared directory configuration items
Path: (The actual path of the shared directory in the server)
Guest OK (or public): whether to allow everyone access to share permissions
Read only (read-only, default does not write is read-only)
Writable (readable and writable)
Iv. building an anonymous shared access (practice is the only criterion for testing theory)
1. Modify the master configuration file/etc/samba/smb.conf
Security=share
2. Create a custom share
"Software"
Path=/software
Publice=yes
Read Only=yes
Note: The/software directory needs to be created in the system
3. Start the service or restart the service
Service SMB Start/restart
V. Build a local user-authenticated shared access
1. Create users and add them to samba users
Useradd Zhangsan
Pdbedit-a-U Zhangsan
2. Modify the master configuration smb.conf file
Security=user
3. Custom Sharing
Such as: Finance department to share documents, financial manager Full Control, Finance Department staff read only, others do not have permission
"Caiwubu"
Path=/caiwubu
Valid USERS=CWJL, @cwb (define legitimate users)
Write List=cwjl (defines a legitimate readable writable user)
Vi. setting default permissions for uploading files and directories
Directory mask=0775 (catalog permissions)
Create mask=0644 (file permissions)
Seven, aliases
1. Modify the alias configuration file
/etc/samba/smbusers
2. Modify the smb.conf file
Add a row in "Golbal"
Username map =/etc/samba/smbusers
Prevent conflicts, as shown in the notes:
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Linux basic concepts and Personal notes summary (5)