Are the services on my laptop secured?












-2















I was cautious about the security of the services on my laptops.




  • I have used iptable to restrict vnc to be accessible local only


  • Are rpcbind, netbios, microsoft-ds, nfs all secured? Do I need to do something to secure them?


  • How can I find out those "unknown" services? Is fuser supposed to find that out?


  • I don't know if there is any program which needs to use mysql. Shall I kill the service, or restrict it locally?


  • what about mysqlx?



Thanks.



Laptop 1:



$ nmap -p0-65535 192.168.0.154

Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:37 EDT
Nmap scan report for olive (192.168.0.154)
Host is up (0.00044s latency).
Not shown: 65526 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
139/tcp open netbios-ssn
445/tcp open microsoft-ds
2049/tcp open nfs
5900/tcp filtered vnc
32901/tcp open unknown
47751/tcp open unknown
49011/tcp open unknown
49511/tcp open unknown

$ fuser 32901/tcp
$


Laptop 2:



$ nmap -p0-65535 192.168.0.142

Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:53 EDT
Nmap scan report for ocean (192.168.0.142)
Host is up (0.000031s latency).
Not shown: 65531 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
111/tcp open rpcbind
3306/tcp open mysql
33060/tcp open mysqlx

Nmap done: 1 IP address (1 host up) scanned in 11.06 seconds









share|improve this question





























    -2















    I was cautious about the security of the services on my laptops.




    • I have used iptable to restrict vnc to be accessible local only


    • Are rpcbind, netbios, microsoft-ds, nfs all secured? Do I need to do something to secure them?


    • How can I find out those "unknown" services? Is fuser supposed to find that out?


    • I don't know if there is any program which needs to use mysql. Shall I kill the service, or restrict it locally?


    • what about mysqlx?



    Thanks.



    Laptop 1:



    $ nmap -p0-65535 192.168.0.154

    Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:37 EDT
    Nmap scan report for olive (192.168.0.154)
    Host is up (0.00044s latency).
    Not shown: 65526 closed ports
    PORT STATE SERVICE
    22/tcp open ssh
    111/tcp open rpcbind
    139/tcp open netbios-ssn
    445/tcp open microsoft-ds
    2049/tcp open nfs
    5900/tcp filtered vnc
    32901/tcp open unknown
    47751/tcp open unknown
    49011/tcp open unknown
    49511/tcp open unknown

    $ fuser 32901/tcp
    $


    Laptop 2:



    $ nmap -p0-65535 192.168.0.142

    Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:53 EDT
    Nmap scan report for ocean (192.168.0.142)
    Host is up (0.000031s latency).
    Not shown: 65531 closed ports
    PORT STATE SERVICE
    22/tcp open ssh
    80/tcp open http
    111/tcp open rpcbind
    3306/tcp open mysql
    33060/tcp open mysqlx

    Nmap done: 1 IP address (1 host up) scanned in 11.06 seconds









    share|improve this question



























      -2












      -2








      -2








      I was cautious about the security of the services on my laptops.




      • I have used iptable to restrict vnc to be accessible local only


      • Are rpcbind, netbios, microsoft-ds, nfs all secured? Do I need to do something to secure them?


      • How can I find out those "unknown" services? Is fuser supposed to find that out?


      • I don't know if there is any program which needs to use mysql. Shall I kill the service, or restrict it locally?


      • what about mysqlx?



      Thanks.



      Laptop 1:



      $ nmap -p0-65535 192.168.0.154

      Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:37 EDT
      Nmap scan report for olive (192.168.0.154)
      Host is up (0.00044s latency).
      Not shown: 65526 closed ports
      PORT STATE SERVICE
      22/tcp open ssh
      111/tcp open rpcbind
      139/tcp open netbios-ssn
      445/tcp open microsoft-ds
      2049/tcp open nfs
      5900/tcp filtered vnc
      32901/tcp open unknown
      47751/tcp open unknown
      49011/tcp open unknown
      49511/tcp open unknown

      $ fuser 32901/tcp
      $


      Laptop 2:



      $ nmap -p0-65535 192.168.0.142

      Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:53 EDT
      Nmap scan report for ocean (192.168.0.142)
      Host is up (0.000031s latency).
      Not shown: 65531 closed ports
      PORT STATE SERVICE
      22/tcp open ssh
      80/tcp open http
      111/tcp open rpcbind
      3306/tcp open mysql
      33060/tcp open mysqlx

      Nmap done: 1 IP address (1 host up) scanned in 11.06 seconds









      share|improve this question
















      I was cautious about the security of the services on my laptops.




      • I have used iptable to restrict vnc to be accessible local only


      • Are rpcbind, netbios, microsoft-ds, nfs all secured? Do I need to do something to secure them?


      • How can I find out those "unknown" services? Is fuser supposed to find that out?


      • I don't know if there is any program which needs to use mysql. Shall I kill the service, or restrict it locally?


      • what about mysqlx?



      Thanks.



      Laptop 1:



      $ nmap -p0-65535 192.168.0.154

      Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:37 EDT
      Nmap scan report for olive (192.168.0.154)
      Host is up (0.00044s latency).
      Not shown: 65526 closed ports
      PORT STATE SERVICE
      22/tcp open ssh
      111/tcp open rpcbind
      139/tcp open netbios-ssn
      445/tcp open microsoft-ds
      2049/tcp open nfs
      5900/tcp filtered vnc
      32901/tcp open unknown
      47751/tcp open unknown
      49011/tcp open unknown
      49511/tcp open unknown

      $ fuser 32901/tcp
      $


      Laptop 2:



      $ nmap -p0-65535 192.168.0.142

      Starting Nmap 7.60 ( https://nmap.org ) at 2019-03-10 17:53 EDT
      Nmap scan report for ocean (192.168.0.142)
      Host is up (0.000031s latency).
      Not shown: 65531 closed ports
      PORT STATE SERVICE
      22/tcp open ssh
      80/tcp open http
      111/tcp open rpcbind
      3306/tcp open mysql
      33060/tcp open mysqlx

      Nmap done: 1 IP address (1 host up) scanned in 11.06 seconds






      security services nmap fuser






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 7 hours ago







      Tim

















      asked 7 hours ago









      TimTim

      27.6k78264477




      27.6k78264477






















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