Subject: [LINUX:11688] Re: Mail-Ftp-Telnet
From: Selami AKSOY (selami@FliPPeR.BiTaV.Org.TR)
Date: Wed 29 Dec 1999 - 03:34:46 EET
On Tue, 28 Dec 1999, Murat Koc wrote:
> > > Shell i /dev/null yaparsaniz ftp yapamaz.
> > > Shell i /bin/false yaparsaniz ancak ftp yapabilir.
> > yapabiliyorum, tecrubeyle sabit. :p proftpd'nin salaklIgI muhtemelen.
Neyin tartISmasI yapIlIyor pek anlamadIm aCIkCasI. *genelde* ftp yapIp
yapamamak sizin iCin tanImlanmIS olan shell'in /etc/shells iCinde olup
olmadIGIna bakar. BazI Ozel durumlar haricinde..
Mesela proftpd iCin /etc/proftpd.conf dosyasInda
RequireValidShell off
ise /etc/shells'e hiC bakmaz username/password doGru ise alIr. Ama
RequireValidShell on
ise yine /etc/shells dosyasIna bakar.
Bunun baSka tartISIlIcak neresi var ki? Ben mi birSeyleri yanlIS biliyorum
yoksa?
~~~~~~~~~~~~~~~~~~
SaygIlar, Sevgiler
SeLaMi.
>
> Zannetmiyorum!
> Asagidaki gibi tecrube ile oldukca sabit.
>
> Ornek1, Ornek2 ve Ornek3, shell /dev/null iken deneme kullanicisi ile ftp
> yapilamadigini,
>
> Ornek4, Ornek5 ve Ornek6 ise shell /bin/false iken deneme kullanicisi ile
> ftp yapilabildigini gosteriyor.
>
>
> Kullanilan ftp daemonlar wu.ftpd, proftpd ve in.ftpd dir.(Asagida da
> goruldugu uzere!)
>
>
>
> Ornek 1
>
> deneme:x:690:100::/home/deneme:/dev/null
> ^^^^^^^^^
>
>
> 220 ProFTPD 1.2.0pre3 Server (powered by SuSE Linux) [karayel.saneg.itu.edu.tr]
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 530 Login incorrect.
> Login failed.
>
>
>
> Ornek 2
>
>
> 220 karayel.saneg.itu.edu.tr FTP server (Version
> wu-2.4.2-academ[BETA-18](1) Mon Aug 23 11:38:12 GMT 1999) ready.
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 530 Login incorrect.
> Login failed.
>
>
> Ornek 3
>
>
> 220 karayel.saneg.itu.edu.tr FTP server (Version 6.2/OpenBSD/Linux-0.11) ready.
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 530 Login incorrect.
> Login failed.
>
>
>
> Ornek 4
>
>
> deneme:x:690:100::/home/deneme:/bin/false
> ^^^^^^^^^^
>
>
> 220 ProFTPD 1.2.0pre3 Server (powered by SuSE Linux) [karayel.saneg.itu.edu.tr]
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 230 User deneme logged in.
>
>
> Ornek 5
>
> 220 karayel.saneg.itu.edu.tr FTP server (Version
> wu-2.4.2-academ[BETA-18](1) Mon Aug 23 11:38:12 GMT 1999) ready.
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 230 User deneme logged in.
>
>
> Ornek 6
>
>
> 220 karayel.saneg.itu.edu.tr FTP server (Version 6.2/OpenBSD/Linux-0.11) ready.
> Name (localhost:root): deneme
> 331 Password required for deneme.
> Password:
> 230- Have a lot of fun...
> 230 User deneme logged in.
>
>
>
> IYI CALISMALAR
>
>
>
> MURAT KOC
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