Some interview topics

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If you are preparing for interviews for linux admin jobs you should be familiar with below concepts..

1) Port number of different servers {cat /etc/services}
2) Linux Installation(through FTP,HTTP,NFS)
3) Boot process
4) Diff b/w ext3 and ext2
5) RAID LEVELS and Selection of raid
6) backup methods
7) Package management such as Yum server
8) Kernel Tuning
9) IPTABLES
10) TCP WRAPPERS
11) DIFFERENT RUN LEVELS
12) USER AND GROUP MANAGEMENT
13) QUOTA SETTING(user and group)
14) DIFF B/W CRON AND AT
15) BASIC SHELL SCRIPTING
16) Troubleshooting different issues.
17) Tell me why we should hire you?
18) DAILY ACTIVITES IN YOUR CURRENT COMPANY
19) RECENTLY SOLVED CRITICAL ISSUE
20) LVM (Very Imp)
21) vertias Volume manager
22) cluster basic like HAD , GAB , LLT , HEARTBEAT , CONFIG FILES , RESOURSE , SERVICE GROUPS etc
23 ) kernel panic troubleshooting
24) Process management
25)Configuration part of NFS , NIS , Samba , DHCP , DNS,Apache, Sendmail etc.
26)Remote administration experience.

And many more depending on your job profile. You should know each topics what you mentioned in your resume . If you are not sure about anything , dont mention in your resume and your resume should reflect your skills.

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  • SAMBA Server Configuration

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    SAMBA(SMB server) is a file sharing server. Which is used to share files between Windows, Linux and Unix Systems. SMB(Server Message Block) is a proprietary protocol which is developed by Microsoft

    Lets see how we can configure SAMBA in Linux.

    Step1 : Create a directory where you want to keep data and share with other remote systems(either windows/Solaris/in fact any unix flavor etc).
    #mkdir /share1

    Step2 : Installing Samba server
    #yum install samba

    Step3 : Once we install Samba server, configure it using its main configuration file(/etc/samba/smb.conf)

    Step3(a) : Open smb.conf file and specify the work group where this server belongs

    #vi /etc/samba/smb.conf
    search for workgroup word and specify your work group name
    workgroup = windows-group.

    Why we require this workgroup?
    Ans : When windows user try to access any network resource they first try to access my network places and then search for workgroup then to server. So definitly we have to specify this workgroup entry in smb.conf file.

    Step3(b) : So now we have to give a name to this samba server, search for "server string" with out quotes then provide the samba server name(here that name is linux-share)

    server string = linux-share

    Step3(c):Now specify the share details, which folder you want to share. To whom you want to share? Goto last line of the smb.conf file specify your shared folder details as follows.
    [myshare]

    comment = "This is my Linux data want to share with my windows users"
    path = /share1
    valid users = user1 user2
    writable = no
    privatable = no
    browsable =yes.

    After giving this seven entries just save and exit the file.

    Let me explain each and every thing what we used here.
    a.[myshare] --This is my share name, so when ever any user accessed my samba server through network this will be visible as folder shared.
    b.comment -- This is just a comment, which will help to know what is this share for.
    c.path -- This is used to specify which folder on my samba machine to share.
    d.valid users --This will specifies which user is having access on this folder.
    e.writable --This will specify whether users are able to write or not, In this example the can just read the folder and copy.
    f.Privatable --This will indicate whether this folder is private or not.
    g.browsable -- This is used to specify whether the folder content is browsable or not.

    Step4 : Now create passwords for the users who are going to access this samba share remotely.

    #smbpasswd -a user1
    #smbpasswd -a user2

    Please specify the passwords for this 2 users and this passwords will be stored in /etc/samba/smbpasswd

    Step5 : check for the syntax for your smb.conf file if in case you did any mistake

    #testparm

    Step6 : Restart the samba service

    #service smb restart

    Step7 : Permanently on the smb service, So that after rebooting the system too our server will start running.

    #chkconfig smb on

    Please check my other post how to mount or see the SAMBA shares
    here

    Please comment your thoughts regarding this post:-)

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