Re: what dose the command chflags used for ?
Dear all, Because we have the command chmod for change the permissions of files so what does the command chflags used for and what suituation I must use it ? chflags is used to set system flags on files you don't want to be modified accidentally - most commonly the 'noschg' flag stops a file from being deleted by a normal user. See the man page for more details, and also the -o option to 'ls' (which shows flag settings for files. but chmod 600 those_file do the same thing why does chflags come to play ? Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://uk.messenger.yahoo.com/ ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what dose the command chflags used for ?
On Thu, Jun 19, 2003 at 07:46:39AM +0100, Supote Leelasupphakorn wrote: Dear all, Because we have the command chmod for change the permissions of files so what does the command chflags used for and what suituation I must use it ? chflags is used to set system flags on files you don't want to be modified accidentally - most commonly the 'noschg' flag stops a file from being deleted by a normal user. See the man page for more details, and also the -o option to 'ls' (which shows flag settings for files. but chmod 600 those_file do the same thing why does chflags come to play ? chflags(1) adds a number of controls impossible to achieve using the standard filesystem permissions. With chflags(1) you can make a file impossible to modify, even by the super user, who can ignore the usual file permissions. You can make a file that you can only add contents to -- not delete -- which is perfect for log files which you need to guarrantee haven't been tampered with. You can make a file whose contents can be modified, by the file itself cannot be moved or deleted, even by a user who has write permissions on the containing directory. You can label a file such that the dump(8) program will ignore it. Finally, if you run at a raised kern.securelevel, you can only increase the security protections added to files by chflags(1) -- in order to remove the flags, you need to reboot into single user mode, which requires you to have access to the system console. See chflags(2), sysctl(8), security(7) and the FAQ entry at http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/security.html#SECURELEVEL for details on securelevels. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK pgp0.pgp Description: PGP signature
Re: what dose the command chflags used for ?
Supote Leelasupphakorn [EMAIL PROTECTED] writes: Dear all, Because we have the command chmod for change the permissions of files so what does the command chflags used for and what suituation I must use it ? chflags is used to set system flags on files you don't want to be modified accidentally - most commonly the 'noschg' flag stops a file from being deleted by a normal user. See the man page for more details, and also the -o option to 'ls' (which shows flag settings for files. but chmod 600 those_file do the same thing why does chflags come to play ? Flags can't be removed (at all) under raised securelevels. Most of the flags have semantics that can't fully be duplicated with normal file permissions. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
what dose the command chflags used for ?
Dear all, Because we have the command chmod for change the permissions of files so what does the command chflags used for and what suituation I must use it ? Thanks in advance, Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://uk.messenger.yahoo.com/ ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what dose the command chflags used for ?
On Thu, Jun 19, 2003 at 05:24:09AM +0100, Supote Leelasupphakorn wrote: Dear all, Because we have the command chmod for change the permissions of files so what does the command chflags used for and what suituation I must use it ? chflags is used to set system flags on files you don't want to be modified accidentally - most commonly the 'noschg' flag stops a file from being deleted by a normal user. See the man page for more details, and also the -o option to 'ls' (which shows flag settings for files. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
