Configuration of FTP Server in LINUX

Ftp server is designed for uploading and downloading the files, when ftp server users log's in, they get their home folder at client side and if public/anonymous user log's in they get data stored in /var/ftp folderSteps to Configure FTP Server in LINUX Step:--1.  Check and install required PackagesCheck the packages are installed or not by rpm/yum command[root@server ~]# rpm -q vsftpdRemove the packages and old data if required[root@server ~]# yum remove vsftpd* -yInstall the PackagesNote: Here my file is at Desktop. So i was changing the path to Desktop.[root@server ~]# cd /root/Desktop/[root@server Desktop]# lsFileZilla3  tomcat  vsftpd-2.0.5-10.el5.i386.rpm[root@server Desktop]# chmod 777 vsftpd-2.0.5-10.el5.i386.rpm[root@server Desktop]# rpm -ivh vsftpd-2.0.5-10.el5.i386.rpmwarning:...

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Network Configurations in Linux

Assigning a static IP address --- temporarilySyntax:--[root@server ~]# ifconfig <devicename> <IP address>Example:-- To Assign the static IP address as 192.168.10.121[root@server ~]# ifconfig eth0 192.168.10.121To check the IP assigned[root@server ~]# ifconfigeth0      Link encap:Ethernet  HWaddr 00:08:02:F7:33:6A          inet addr:192.168.10.121  Bcast:192.168.10.255  Mask:255.255.255.0          inet6 addr: fe80::208:2ff:fef7:336a/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:773 errors:0 dropped:0 overruns:0...

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Networking in LINUX

Introduction to Networking in LinuxTo check the system hostname[root@localhost ~]# hostnamelocalhost.localdomainAssigning the hostname - temporarlySyntax:- [root@localhost ~]# hostname <computer>EX:- To assign the hostname as server.linuxnunixhelp.com[root@localhost ~]# hostname server.linuxnunixhelp.comTo check the hostname assigned[root@localhost ~]# hostnameserver.linuxnunixhelp.comAssigning hostname ---- PermanentlyEdit the configuration file /etc/sysconfig/networkNETWORKING=yesHOSTNAME=server.linuxnunixhelp.com:...

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System Process Commands in Linux

TO check the Process id of any application, command etc[root@localhost ~]# ps -auxTo kill a process normally[root@localhost ~]# kill <process_id>ex: -- [root@localhost ~]# kill 2521To kill the process forcefully use stamp value as '9'[root@localhost ~]# kill -9 <process_id>[root@localhost ~]# kill -9 2521To see the cpu & process status[root@localhost ~]# topTo see the open port number and service name[root@localhost ~]# netstat -antpActive Internet connections (servers and established)Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program nametcp       ...

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To Recover Root Password in Linux

1. Restart the PC while restarting press any key to get Grub Screen2. Press 'e'3. Select kernal /vmlinuz-2.6.18.-8.el5 ro root=LABEL=/ rhgb quiet4. Again Press 'e' to edit5. Edit kernal /vmlinuz-2.6.18.-8.el5 ro root=/ rhgb quiet line and erase quite and type single6. Press enter7. Press b to boot8. At shell prompt type the commands sh-3.00# passwdChanging Password for user rootNew UNIX Password:123456Retype new UNIX Password: 123456Passwd: all authentication tokens updated Successfully.Now type the following command to Restart the system to the normal Loginsh-3.00# init...

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Usage of chkconfig command

To view the status of the the services in all runlevels  [root@localhost ~]# chkconfig --list To view the status of the Particular services.For example Bluetooth [root@localhost ~]# chkconfig --list bluetoothbluetooth       0:off   1:off   2:off   3:off   4:off   5:off   6:off To put the service at all runlevel as on [root@localhost ~]# chkconfig bluetooth on To view the status [root@localhost ~]# chkconfig --list bluetoothbluetooth       0:off   1:off   2:on    3:on    4:on    5:on    6:off To put the service at all runlevel as off [root@localhost ~]# chkconfig bluetooth off To...

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