What are all these daemons?

What are all these daemons?

Post by walt » Sat, 15 Jan 2000 04:00:00



Below is the (edited) output of 'ps ax.'  I've just installed
RedHat 6.1 and it seems there are many more processes running
than I'm used to seeing with Mandrake or SuSE.

I have a home LAN with three computers and a dialup connection.
Nothing fancy or special.  Usually one machine is running Win98.

Do I really need all these things running routinely?

Any pointers or suggestions much appreciated.

   1 ?        S      0:03 init
    2 ?        SW     0:00 [kflushd]
    3 ?        SW     0:02 [kupdate]
    4 ?        SW     0:00 [kpiod]
    5 ?        SW     0:02 [kswapd]
  312 ?        SW     0:00 [portmap]
  328 ?        SW     0:00 [lockd]
  329 ?        SW     0:00 [rpciod]
  340 ?        SW     0:00 [rpc.statd]
  393 ?        S      0:02 syslogd -m 0
  404 ?        S      0:03 klogd
  420 ?        S      0:00 /usr/sbin/atd
  436 ?        S      0:00 crond
  452 ?        S      0:00 inetd
  468 ?        SW     0:00 [lpd]
  487 ?        SW     0:00 [rpc.rquotad]
  498 ?        SW     0:00 [rpc.mountd]
  511 ?        SW     0:00 [nfsd]
  512 ?        SW     0:00 [nfsd]
  513 ?        SW     0:00 [nfsd]
  514 ?        SW     0:00 [nfsd]
  515 ?        SW     0:00 [nfsd]
  516 ?        SW     0:00 [nfsd]
  517 ?        SW     0:00 [nfsd]
  518 ?        SW     0:00 [nfsd]
  590 ?        S      0:00 xfs -droppriv -daemon -port -1
 1142 ?        S      0:00 in.identd -e -o
 1143 ?        S      0:00 in.identd -e -o
 1144 ?        S      0:00 in.identd -e -o
 1145 ?        S      0:00 in.identd -e -o
 1146 ?        S      0:00 in.identd -e -o
 1147 ?        S      0:00 in.identd -e -o
 1148 ?        S      0:00 in.identd -e -o
 1149 ?        S      0:00 in.identd -e -o
 1150 ?        S      0:00 in.identd -e -o
 1151 ?        S      0:00 in.identd -e -o
 1152 ?        S      0:00 in.identd -e -o

 
 
 

What are all these daemons?

Post by sfcyb.. » Sun, 16 Jan 2000 04:00:00


Most of the answers you seek can be gotten from the "man".

enter the command:

`man <daemon_name>`

ie: man syslogd

you may also want to try the command:

man man



Quote:> Below is the (edited) output of 'ps ax.'  I've just installed
> RedHat 6.1 and it seems there are many more processes running
> than I'm used to seeing with Mandrake or SuSE.

> I have a home LAN with three computers and a dialup connection.
> Nothing fancy or special.  Usually one machine is running Win98.

> Do I really need all these things running routinely?

Depends on your system and what you need to do what you want. My guess
is that your don't need nfsd running, but that is only a guess.

Quote:

> Any pointers or suggestions much appreciated.

>    1 ?        S      0:03 init
>     2 ?        SW     0:00 [kflushd]
>     3 ?        SW     0:02 [kupdate]
>     4 ?        SW     0:00 [kpiod]
>     5 ?        SW     0:02 [kswapd]
>   312 ?        SW     0:00 [portmap]
>   328 ?        SW     0:00 [lockd]
>   329 ?        SW     0:00 [rpciod]
>   340 ?        SW     0:00 [rpc.statd]
>   393 ?        S      0:02 syslogd -m 0
>   404 ?        S      0:03 klogd
>   420 ?        S      0:00 /usr/sbin/atd
>   436 ?        S      0:00 crond
>   452 ?        S      0:00 inetd
>   468 ?        SW     0:00 [lpd]
>   487 ?        SW     0:00 [rpc.rquotad]
>   498 ?        SW     0:00 [rpc.mountd]
>   511 ?        SW     0:00 [nfsd]
>   512 ?        SW     0:00 [nfsd]
>   513 ?        SW     0:00 [nfsd]
>   514 ?        SW     0:00 [nfsd]
>   515 ?        SW     0:00 [nfsd]
>   516 ?        SW     0:00 [nfsd]
>   517 ?        SW     0:00 [nfsd]
>   518 ?        SW     0:00 [nfsd]
>   590 ?        S      0:00 xfs -droppriv -daemon -port -1
>  1142 ?        S      0:00 in.identd -e -o
>  1143 ?        S      0:00 in.identd -e -o
>  1144 ?        S      0:00 in.identd -e -o
>  1145 ?        S      0:00 in.identd -e -o
>  1146 ?        S      0:00 in.identd -e -o
>  1147 ?        S      0:00 in.identd -e -o
>  1148 ?        S      0:00 in.identd -e -o
>  1149 ?        S      0:00 in.identd -e -o
>  1150 ?        S      0:00 in.identd -e -o
>  1151 ?        S      0:00 in.identd -e -o
>  1152 ?        S      0:00 in.identd -e -o

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Before you buy.

 
 
 

What are all these daemons?

Post by H.R. Moran, Jr » Sun, 16 Jan 2000 04:00:00


Demons are providing services. Demon process and server process are "almost"
synonyms.
There are three basic ways that demons are started.
1) start one manually when you will need it soon (like startx)
2) just start one at boot up (like lpd)
3) If it is network associated (which most are), you can have inetd
    listen for some process trying to contact a demon that is not started
automatically
    and start one at that time.
    You configure inetd as to what demons is should do proxy listening for
    by changing the contents of /etc/inetd.conf
Different distributions or releases might have a different mix of which are
started which way.
Note that all of them are (S) sleeping (i.e. not consuming CPU) and many are
(W) swapped out
(i.e. not consuming much RAM either ). So the tradeoff for picking which way
to start them is
whether you want them to be "instantly" ready to perform the service when
requested, or have to be loaded and started each time the service is wanted.
I you want them "instant", they will consume swap space (and a  little RAM)
all the time.
==========================================

Quote:> Below is the (edited) output of 'ps ax.'  I've just installed
> RedHat 6.1 and it seems there are many more processes running
> than I'm used to seeing with Mandrake or SuSE.

> I have a home LAN with three computers and a dialup connection.
> Nothing fancy or special.  Usually one machine is running Win98.

> Do I really need all these things running routinely?

> Any pointers or suggestions much appreciated.

>    1 ?        S      0:03 init
>     2 ?        SW     0:00 [kflushd]
>     3 ?        SW     0:02 [kupdate]
>     4 ?        SW     0:00 [kpiod]
>     5 ?        SW     0:02 [kswapd]
>   312 ?        SW     0:00 [portmap]
>   328 ?        SW     0:00 [lockd]
>   329 ?        SW     0:00 [rpciod]
>   340 ?        SW     0:00 [rpc.statd]
>   393 ?        S      0:02 syslogd -m 0
>   404 ?        S      0:03 klogd
>   420 ?        S      0:00 /usr/sbin/atd
>   436 ?        S      0:00 crond
>   452 ?        S      0:00 inetd
>   468 ?        SW     0:00 [lpd]
>   487 ?        SW     0:00 [rpc.rquotad]
>   498 ?        SW     0:00 [rpc.mountd]
>   511 ?        SW     0:00 [nfsd]
>   512 ?        SW     0:00 [nfsd]
>   513 ?        SW     0:00 [nfsd]
>   514 ?        SW     0:00 [nfsd]
>   515 ?        SW     0:00 [nfsd]
>   516 ?        SW     0:00 [nfsd]
>   517 ?        SW     0:00 [nfsd]
>   518 ?        SW     0:00 [nfsd]
>   590 ?        S      0:00 xfs -droppriv -daemon -port -1
>  1142 ?        S      0:00 in.identd -e -o
>  1143 ?        S      0:00 in.identd -e -o
>  1144 ?        S      0:00 in.identd -e -o
>  1145 ?        S      0:00 in.identd -e -o
>  1146 ?        S      0:00 in.identd -e -o
>  1147 ?        S      0:00 in.identd -e -o
>  1148 ?        S      0:00 in.identd -e -o
>  1149 ?        S      0:00 in.identd -e -o
>  1150 ?        S      0:00 in.identd -e -o
>  1151 ?        S      0:00 in.identd -e -o
>  1152 ?        S      0:00 in.identd -e -o

 
 
 

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