Is there a daemon which is not a server? [closed]

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP












-3














It seems that a server is not necessarily running as a daemon, e.g. X server. If I am not correct, please let me know.



Is a daemon necessarily a server? Is there a daemon which is not a server? I guess there are quite a few, and I am not sure if the init processes under sysvinit and systemd are such examples.



Thanks.






daemon init







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closed as unclear what you're asking by muru, JigglyNaga, RalfFriedl, Michael Homer, Sparhawk Dec 21 '18 at 10:56


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • Thanks. I am using Linux only, so it is hard for me to relate
    – Tim
    Dec 19 '18 at 18:48










  • That may be easier to understand.
    – Tim
    Dec 19 '18 at 18:53















-3














It seems that a server is not necessarily running as a daemon, e.g. X server. If I am not correct, please let me know.



Is a daemon necessarily a server? Is there a daemon which is not a server? I guess there are quite a few, and I am not sure if the init processes under sysvinit and systemd are such examples.



Thanks.






daemon init







share|improve this question













closed as unclear what you're asking by muru, JigglyNaga, RalfFriedl, Michael Homer, Sparhawk Dec 21 '18 at 10:56


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • Thanks. I am using Linux only, so it is hard for me to relate
    – Tim
    Dec 19 '18 at 18:48










  • That may be easier to understand.
    – Tim
    Dec 19 '18 at 18:53













-3












-3








-3







It seems that a server is not necessarily running as a daemon, e.g. X server. If I am not correct, please let me know.



Is a daemon necessarily a server? Is there a daemon which is not a server? I guess there are quite a few, and I am not sure if the init processes under sysvinit and systemd are such examples.



Thanks.






daemon init







share|improve this question













It seems that a server is not necessarily running as a daemon, e.g. X server. If I am not correct, please let me know.



Is a daemon necessarily a server? Is there a daemon which is not a server? I guess there are quite a few, and I am not sure if the init processes under sysvinit and systemd are such examples.



Thanks.






daemon init




daemon init






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Dec 19 '18 at 18:06









Tim

26k74246455




26k74246455




closed as unclear what you're asking by muru, JigglyNaga, RalfFriedl, Michael Homer, Sparhawk Dec 21 '18 at 10:56


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






closed as unclear what you're asking by muru, JigglyNaga, RalfFriedl, Michael Homer, Sparhawk Dec 21 '18 at 10:56


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.













  • Thanks. I am using Linux only, so it is hard for me to relate
    – Tim
    Dec 19 '18 at 18:48










  • That may be easier to understand.
    – Tim
    Dec 19 '18 at 18:53
















  • Thanks. I am using Linux only, so it is hard for me to relate
    – Tim
    Dec 19 '18 at 18:48










  • That may be easier to understand.
    – Tim
    Dec 19 '18 at 18:53















Thanks. I am using Linux only, so it is hard for me to relate
– Tim
Dec 19 '18 at 18:48




Thanks. I am using Linux only, so it is hard for me to relate
– Tim
Dec 19 '18 at 18:48












That may be easier to understand.
– Tim
Dec 19 '18 at 18:53




That may be easier to understand.
– Tim
Dec 19 '18 at 18:53










2 Answers
2






active

oldest

votes


















1














Anything that is performing a task without being requested to do so by a client. I.e. a daemon that is not serving clients.



I've recently played around with SSHGuard, a daemon that parses connection logs and that blocks abusive hosts. This is not a server.



The DHCP client deamon that many Unices runs variations of is not a server.



NTP is ofter implemented as a daemon that can function without being a server (only as a leaf node client).






share|improve this answer




















  • fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
    – Zeta
    Dec 19 '18 at 18:56











  • acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
    – Austin Hemmelgarn
    Dec 19 '18 at 20:15


















0














I am moving Mark's comment here




https://www.tuhs.org//cgi-bin/utree.pl?file=V7/usr/src/cmd/update.c is a daemon that is not a server.







share|improve this answer



























    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    Anything that is performing a task without being requested to do so by a client. I.e. a daemon that is not serving clients.



    I've recently played around with SSHGuard, a daemon that parses connection logs and that blocks abusive hosts. This is not a server.



    The DHCP client deamon that many Unices runs variations of is not a server.



    NTP is ofter implemented as a daemon that can function without being a server (only as a leaf node client).






    share|improve this answer




















    • fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
      – Zeta
      Dec 19 '18 at 18:56











    • acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
      – Austin Hemmelgarn
      Dec 19 '18 at 20:15















    1














    Anything that is performing a task without being requested to do so by a client. I.e. a daemon that is not serving clients.



    I've recently played around with SSHGuard, a daemon that parses connection logs and that blocks abusive hosts. This is not a server.



    The DHCP client deamon that many Unices runs variations of is not a server.



    NTP is ofter implemented as a daemon that can function without being a server (only as a leaf node client).






    share|improve this answer




















    • fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
      – Zeta
      Dec 19 '18 at 18:56











    • acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
      – Austin Hemmelgarn
      Dec 19 '18 at 20:15













    1












    1








    1






    Anything that is performing a task without being requested to do so by a client. I.e. a daemon that is not serving clients.



    I've recently played around with SSHGuard, a daemon that parses connection logs and that blocks abusive hosts. This is not a server.



    The DHCP client deamon that many Unices runs variations of is not a server.



    NTP is ofter implemented as a daemon that can function without being a server (only as a leaf node client).






    share|improve this answer












    Anything that is performing a task without being requested to do so by a client. I.e. a daemon that is not serving clients.



    I've recently played around with SSHGuard, a daemon that parses connection logs and that blocks abusive hosts. This is not a server.



    The DHCP client deamon that many Unices runs variations of is not a server.



    NTP is ofter implemented as a daemon that can function without being a server (only as a leaf node client).







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Dec 19 '18 at 18:54









    Kusalananda

    121k16229372




    121k16229372











    • fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
      – Zeta
      Dec 19 '18 at 18:56











    • acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
      – Austin Hemmelgarn
      Dec 19 '18 at 20:15
















    • fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
      – Zeta
      Dec 19 '18 at 18:56











    • acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
      – Austin Hemmelgarn
      Dec 19 '18 at 20:15















    fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
    – Zeta
    Dec 19 '18 at 18:56





    fail2ban (similar to SSHGuard) and smartd (monitoring of S.M.A.R.T values) are two other examples that come to mind.
    – Zeta
    Dec 19 '18 at 18:56













    acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
    – Austin Hemmelgarn
    Dec 19 '18 at 20:15




    acpid, mcelog, irqbalance, rngd, atd, and cronare all additional examples that come to mind.
    – Austin Hemmelgarn
    Dec 19 '18 at 20:15













    0














    I am moving Mark's comment here




    https://www.tuhs.org//cgi-bin/utree.pl?file=V7/usr/src/cmd/update.c is a daemon that is not a server.







    share|improve this answer

























      0














      I am moving Mark's comment here




      https://www.tuhs.org//cgi-bin/utree.pl?file=V7/usr/src/cmd/update.c is a daemon that is not a server.







      share|improve this answer























        0












        0








        0






        I am moving Mark's comment here




        https://www.tuhs.org//cgi-bin/utree.pl?file=V7/usr/src/cmd/update.c is a daemon that is not a server.







        share|improve this answer












        I am moving Mark's comment here




        https://www.tuhs.org//cgi-bin/utree.pl?file=V7/usr/src/cmd/update.c is a daemon that is not a server.








        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 19 '18 at 18:47









        Tim

        26k74246455




        26k74246455












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