A kernel is a central component of an operating system. It acts as an interface between the user applications and the hardware. The sole aim of the kernel is to manage the communication between the software (user level applications) and the hardware (CPU, disk memory etc). The main tasks of the kernel are :
Process management
Device management
Memory management
Interrupt handling
I/O communication
| left terms and list operators (leftward) | |
| left -> | |
| nonassoc ++ -- | |
| right ** | |
| right ! ~ \ and unary + and - | |
| left =~ !~ | |
| left * / % x | |
| left + - . | |
| left << >> | |
| nonassoc named unary operators |
| Using perl: | |
| $ perl -ne 'print if $.>=3 and $.<=5;' /etc/passwd | |
| or | |
| $ perl -ne 'print if $.>=3; last if $.>5' /etc/passwd | |
| (The second variant is, again, more efficient.) | |
| --------------------------------------- | |
| Using sed: | |
| $ sed -n '3,5p' /etc/passwd | |
| or |
| *** | |
| FARLiGHT ELiTE HACKERS LEGACY R3L3ASE | |
| *** | |
| Attached is the MySQL Windows Remote Exploit (post-auth, udf | |
| technique) including the previously released mass scanner. | |
| The exploit is mirrored at the farlight website http://www.farlight.org. | |
| Oracle MySQL on Windows Remote SYSTEM Level Exploit zeroday | |
| All owned By Kingcope |
| A vulnerability was reported in MySQL. A remote authenticated user can cause denial of service conditions. | |
| This issue affects versions prior to MySQL 5.1.48. | |
| A remote authenticated user can send a specially crafted ALTER DATABASE command to cause the target server to move a data directory into a new subdirectory, causing the data directory to become unusable. | |
| A demonstration exploit request is provided [where "<special>" is "." or ".." or is a sequence that begins with "./" or "../"]: | |
| ALTER DATABASE `#mysql50#<special>` UPGRADE DATA DIRECTORY NAME |
| During an audit the Mikrotik RouterOS sshd (ROSSSH) has been identified to have a remote previous to authentication heap corruption in its sshd component. | |
| Exploitation of this vulnerability will allow full access to the router device. | |
| This analysis describes the bug and includes a way to get developer access to recent versions of Mikrotik RouterOS | |
| using the /etc/devel-login file. This is done by forging a modified NPK file using a correct signature and logging | |
| into the device with username ‘devel’ and the password of the administrator. This will drop into a busybox shell for | |
| further researching the sshd vulnerability using gdb and strace tools that have been compiled for the Mikrotik busybox | |
| platform. |
| obj-m += rootkit.o | |
| all: | |
| make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules | |
| clean: | |
| make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean |
The GCC distributed with CentOS 6 is 4.4.7, which is pretty outdated. I'd like to use gcc 4.8+. Also, when trying to install Linuxbrew you run into a dependency loop where Homebrew's gcc depends on zlib, which depends on gcc. Here's how I solved the problem.
Note: Requires sudo privileges.
#Intro This guide explains how to set up an NFS server and an NFS client on Debian Wheezy. NFS stands for Network File System; through NFS, a client can access (read, write) a remote share on an NFS server as if it was on the local hard disk. In this Tutorial I will show you two different NFS exports, the export of a client directory that stores files as user nobody / nogroup without preserving filesystem permissions and a export of the /var/www directory which preserves permissions and ownerships of files, as required on a hosting server setup. #server:
NFS Server: server.example.com, IP address: 192.168.0.100
NFS Client: client.example.com, IP address: 192.168.0.101