01-03-2009
Iptable is probably the final part of the puzzle, ie. how to block access, but other things are needed before getting that far.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
RedHat 7.0
Caldera 2.4
From Windows 2000 server, you can allow ceratin users to use only so much disk space when they login.
I'm sure you can do that in Linux/UNIX, but I just don't know how or what you call them here (disk quotas maybe?). Anyway, any kind help is always greatly appreciated.... (1 Reply)
Discussion started by: zorro81
1 Replies
2. Filesystems, Disks and Memory
Hi, I'm trying to setup user quotas on my Linux system.
It is Suse 7.3 running the standard kernel from that release.
When I try to run quotaon, I get the following:
# quotaon -v /dev/hdc1
quotaon: using /home/aquota.user on /dev/hdc1: Invalid argument
I can't figure out what it means by... (1 Reply)
Discussion started by: cybler
1 Replies
3. Shell Programming and Scripting
here is the file i must use to write my script (from a repquota -g) :
Group used soft grace ...
group1 -- 270000 0 0 ...
group2 -- 1500005 0 0 ...
group3 -- 55 0 0
... ... ... ... ...
the script has to... (2 Replies)
Discussion started by: tomapam
2 Replies
4. Solaris
Has anyone ever used disk quotas with NIS? I tried to implement it the normal way but since the users only exist in NIS and not in the local passwd file when i try the edquota command it cannot find the user.
Thanks (4 Replies)
Discussion started by: meyersp
4 Replies
5. UNIX for Dummies Questions & Answers
Hello, I will be creating several users on a new AIX box. I would like to limit the amount of data they can keep. How can I do that in smit or with a command.
Thanks - Brad (0 Replies)
Discussion started by: rondebbs
0 Replies
6. Filesystems, Disks and Memory
Heres a stupid question to all you Linux gods/goddesses.
Is there any way to have the system automatically set user quotas when a user account is created or does it have to be done by hand or a script. Every article, thread, anything Ive read so far only shows how to set quotas manually. Any... (3 Replies)
Discussion started by: mcady_02
3 Replies
7. Linux
How do I limit the maximum usage space for a specific MySQL user ??
Databases can be unlimited but the total sum of data on all tables and databases shouldn't exceed a limit I want. How to do this ?? (2 Replies)
Discussion started by: Nilesh_lf
2 Replies
8. Solaris
Hello all,
I am trying to set quotas on /export/home filesystem for some of our users on a Solaris Zone I know that you would be redirecting me to some of the documentation pages, but I have already done that.
The /export/home on the Zone is a Veritas FS and I cannot see an entry for... (4 Replies)
Discussion started by: grajp002
4 Replies
9. Solaris
Hi Guys,
I have quota support turned on, on two file systems. However, when I do a repquota -va I get report only for one. What might be the problem?
I will really appreciate your help.
Thanks Gurus. (0 Replies)
Discussion started by: cjashu
0 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I'm practicing new things with Linux/Unix and I need someone to point me at the right direction.
Lets say I create a user named user1. After creating it, how would I enable quotas for it. I have already added "userquota" under "/etc/fstab" and rebooted my system, but after I run the command... (1 Reply)
Discussion started by: abhi7514
1 Replies
LEARN ABOUT CENTOS
bio_get_cipher_ctx
BIO_f_cipher(3) OpenSSL BIO_f_cipher(3)
NAME
BIO_f_cipher, BIO_set_cipher, BIO_get_cipher_status, BIO_get_cipher_ctx - cipher BIO filter
SYNOPSIS
#include <openssl/bio.h>
#include <openssl/evp.h>
BIO_METHOD * BIO_f_cipher(void);
void BIO_set_cipher(BIO *b,const EVP_CIPHER *cipher,
unsigned char *key, unsigned char *iv, int enc);
int BIO_get_cipher_status(BIO *b)
int BIO_get_cipher_ctx(BIO *b, EVP_CIPHER_CTX **pctx)
DESCRIPTION
BIO_f_cipher() returns the cipher BIO method. This is a filter BIO that encrypts any data written through it, and decrypts any data read
from it. It is a BIO wrapper for the cipher routines EVP_CipherInit(), EVP_CipherUpdate() and EVP_CipherFinal().
Cipher BIOs do not support BIO_gets() or BIO_puts().
BIO_flush() on an encryption BIO that is being written through is used to signal that no more data is to be encrypted: this is used to
flush and possibly pad the final block through the BIO.
BIO_set_cipher() sets the cipher of BIO b to cipher using key key and IV iv. enc should be set to 1 for encryption and zero for decryption.
When reading from an encryption BIO the final block is automatically decrypted and checked when EOF is detected. BIO_get_cipher_status() is
a BIO_ctrl() macro which can be called to determine whether the decryption operation was successful.
BIO_get_cipher_ctx() is a BIO_ctrl() macro which retrieves the internal BIO cipher context. The retrieved context can be used in
conjunction with the standard cipher routines to set it up. This is useful when BIO_set_cipher() is not flexible enough for the
applications needs.
NOTES
When encrypting BIO_flush() must be called to flush the final block through the BIO. If it is not then the final block will fail a
subsequent decrypt.
When decrypting an error on the final block is signalled by a zero return value from the read operation. A successful decrypt followed by
EOF will also return zero for the final read. BIO_get_cipher_status() should be called to determine if the decrypt was successful.
As always, if BIO_gets() or BIO_puts() support is needed then it can be achieved by preceding the cipher BIO with a buffering BIO.
RETURN VALUES
BIO_f_cipher() returns the cipher BIO method.
BIO_set_cipher() does not return a value.
BIO_get_cipher_status() returns 1 for a successful decrypt and 0 for failure.
BIO_get_cipher_ctx() currently always returns 1.
EXAMPLES
TBA
SEE ALSO
TBA
1.0.1e 2013-02-11 BIO_f_cipher(3)