What are daemon processes

Replies

• 

  babloo0311

  hello durga,
  
  Usually a background process refers to a process put in the background
  by a shell but which it can still reach and e.g. bring to
  the foreground again. A deamon usually runs with no association
  to a user/interactive shell or in relation to other non-background
  processes..
  
  a daemon has no associated tty and no parent
  A daemon is a kind of persistant background process
• 

  durga ch

  hmm
  
  so I can put it this way?
  a user started shell script in abck ground as nohup... is a back ground process but the back ground process satrted up by root can be called and daemons which have no particular access and they run until the terminal is closed ?
• 

  babloo0311

  A daemon necessarily is no longer associated with the terminal, and for example will not die if the login process it traced back to no longer exists. It most likely also does a chdir(2), and might even do chroot(2). It should also do things like put an
  appropriate file into /var/run, and perhaps write to syslog too.
• 

  babloo0311

  deamon process is a system process which u have almost no control over it is created by init while system boots of by orphanning a foreground process background process is any process which doesnt have active terminal acccess
• 

  durga ch

  hmm
  
  that explains!! 😀
  thanks.. will get back inc ase of any more issues 😁
• 

  babloo0311

  well fine durga . i will also collect some more information about this.