Ten Technical points that every system admin should know when joining into a new team


I have started unixadminschool.com ( aka gurkulindia.com) in 2009 as my own personal reference blog, and later sometime i have realized that my leanings might be helpful for other unixadmins if I manage my knowledge-base in more user friendly format. And the result is today's' unixadminschool.com. You can connect me at - https://www.linkedin.com/in/unixadminschool/

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27 Responses

  1. Sandeep says:

    Good Job Ramdev. Could you please explain me what kind of tools/Software will be used to secure the Solaris OS ?

    • Ramdev says:

      Thanks Michael for detailed explanation.
      @Sandeep , When it comes to securing an IT environment, it has to deploy at two levels, one is Network Level security and second one is OS hardening ( i.e. Operating system level security)
      1. Network security implementation is out-of-scope topic for sysadmins but it is always good to know the details. Software / Hardware based firewalls helps to implement network security.
      2. to Implement secured solaris environment , ideally we use no tools instead we just configure the solaris in such a way that it wont allow intruders to easily breach the security. And the details Michael mentioned above are part of OS Hardening.

      Hope this helps

  2. Michael says:

    @ Sandeep It all depends on your infrastruture set up and firewall setup primarily ,If the network infra is well planned and organised and then you dont hv to worry about anything this is how you can secure any of you servers irrespective of OS variants this is applicable only if  your server is been used by the other world (Internet) ,When it comes to solaris ,There are many security aspects to be considered every OS might have security bugs we will not know untill or unless we face them in real time enviornment so in this case updating the server with the latest patches should be helpfull in security breach then moving onto next you can restrict access to the system with certain config files on ftp ssh along with proper logging facilty  ,tuning the the TCP/IP stacks like packet redirection ,ICMP drops ,ARP request reduction ,Possiblites of kernel sneaking is also there ,you can protect them with stack restriction .

  3. sandeep says:

    Thanks Michael and Ramdev for your detail explanation.

  4. Michael says:

    @ Sandeep you are most welcome :-) 

  5. Yogesh Raheja says:

    @Sandeep, Ram & Michael have already provided you with the best possible answer. Here I would also like to add one more point to secure OS security. Your authentication method play a vital role in OS security. Password less authentication is an open invitation to the hackers. Password authentication will secure the OS security but again it depends what mechanism you are using in password  authentication (local users/ or centralized authentication like NIS,NIS+ or LDAPS etc.) but still there are cases where passwords are hacked (thats the reason its recommended to change the passwords regularly and security teams are asking to keep password policies complex). three option which all of the secure customers are using is SECURE TOKEN ID authentication. which will provide you with the maximum secure logins. Hope this will help you.

  6. ramakrishna says:

    can u please provide the information about how to access the multipathing in solaris environment. please help me.

  7. Sateesh says:

    Good work.. :)

  8. Garvit says:

    Nice Post Ramdev.As per point 9, can you share some of basic scripts in your coming posts which are usaually used in Unix ..

  9. Ramdev says:

    @Garvit – Sure. I am in the same thought actually. :)

  10. anil says:

    Hi Ram,

    Please provide me the steps to recover the root password for a Sun T3-1. Is it possible to recover it remotely.

  11. Ramdev says:

    @anil – Are you talking T3 storage or Sparc T3 processor based servers? If it OS password the one mentioned by yogesh works, for storage you need differnt procedure.

  12. snehal says:

    Awesome post, just loved it….keep posting more how to work smart rather than hard in an IT MNC firm!

  13. seema says:

    Ramdev, Agree and most important for any new team member to understand Environment.
    From My experience, Whenever I join new organisation its important to know “what  are different tech used ” . Your’s and Yogesh Writings always Inspired me. Thanks to Gurkul.

  14. Ramdev says:

    Seema, Appreciate your continuous support to our site

  15. prajwala says:

    Ram , would you explain what is Dynamic domain & Logical Domain.
    I am totally confused.

    • Ramdev says:

      Prajwala, can you explain what context you are talking about this question. I mean is that you about solaris or network or something else?

  16. prajwala says:

    Hi ram,

    its about solaris specially on M- series servers and T- series servers

  17. Kiran MS says:

    It worked for me while moving to new project…. Thanks anna

  18. ayyappan says:

    It was very useful because i joined new company and i don’t know how to react initially.After read this article,
    i came to know process.

    Thanks Ramdev…

  19. satyam says:

    what you told is very correct.. thanks for briefing

  20. Ratna Amber says:

    Good understanding for the admins who is going to join in IT industry

  1. September 15, 2015

    […] Ten Technical points that every system admin should know when joining into a new team […]

  2. September 17, 2015

    […] Ten Technical points that every system admin should know when joining into a new team […]

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