nfs mount kai passwd

[Michalis Kabrianis]

On 20-Nov-99 Antonis Tsolomitis wrote:
> 
>> Oti to /etc den to kaneis NFS-mount :-)
>> Ayto pou thelete omws den (the eprepe na) exei sxesi me local passwords. H
>> kalyteri ylopoiisi gia sas einai enas server me ola ta kaloudia epanw KAI ta
>> accounts, kai polloi clients pou kanoun nfsmount ta /usr /usr/local /opt 
>> /home kai exoun topika / kai /var
>> To /home eidika paei me autofs kai NIS kai sou ftiaxnei mia poly kali kai
>> aksiopisti lysi.
> 
> Mixaln, tote pws 0a paizouv ta passwords? Dev eivai swsto va yparxei
> movo eva password file kai movo sto kevtriko mnxavnma? Me poio tropo
> givetai to authentication sta topika mnxavnmata?

Yparxei ena kentriko password file (sto kentriko michanima) to opoio einai NIS
server. Yparxoun kai ta ypoloipa mixanimata, pou tha einai NIS clients. 
(H ylopoiisi me ena mono server kai xwris slaves -secondary servers diladi-, gia
evnoitous logous prepei na apofeyxthei bebaia).
To NIS (Network Information Systems, prwin YP tis Sun) analambanei na "dinei"
stous secondary servers diafora arxeia (opoia tou peis diladi) opws to
passwd file, to group file, to hosts file, ta maps tou autofs klp klp enw oi
clients zitane apo ton kentriko kai tous secondary servers ta stoixeia pou
xreiazontai, otan ta xreiazontai.
 
> Fysika opws to les ta /home /usr klp 0a givovtai nfs mount/autofs
> kai ta / kai /var 0a eivai topika. Alla dev katalaba ti givetai me ta
> passwords. Mporeis va giveis ligo pio safns. 

Elpizw to pio panw na einai safes.
Gia to /home eidika (monterna sxediasi :-) einai kalo na baleis ena autofs map,
outws wste me to pou kanei (NIS) login o xristis, na ginetai mount kai to home
directory tou (den einai ypoxrewtiko bebaia, mporeis na to exeis kai monima
mount, alla ayti i lysi einai pou genikws proteinetai). Etsi ftaneis se mia
lysi pou ta topika mixanimata exoun mono ta apolytws aparaitita passwords (root
basika) kai tipota allo. O kathe xristis meta mpainei se opoio mixanima thelei,
kai exei panta tis idies rythmiseis.

> 0eloume va trexouv ta X kai to desktop apo tov topiko epeksergastn kai
> mvnmn gia profaveis logous. Ara dev milame gia startx -query
> kevtrikos-server. Etsi dev eivai?

Oxi, topika tha trexoun (apo apopsis CPU kai mnimis, alla diktyaka apo apopsis
diskwn)

> (ti va kavoume ... zoume to kataplnktiko paradokso oi administrators
> tns sxolns va dnlwvouv oti ypostnrizouv movo NT kai emeis
> pou movo ma0nmatika ma0ame va prepei va kavoume aytes tis douleies
> giati yparxouv kamposoi foitntes pou psaxvovtai gia to Unix (kai auto
> eivai to kalo)).

Na peis stous NT administrators oti otan aytoi anakalyptan ta Domains, emeis
eixame kati xronia to NIS pou kanei tin idia douleia (kai epeidi eimaste
Unix-ades leme oti tin kanei kai kalytera). Elpizw de ayti i paromoiwsi na se
boithisei na katalabeis ti einai to NIS.

> Euxaristw,
> 
> Avtwvns.
> 

Michalis Kabrianis
kabrianis at hellug.gr
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