In a Linux environment, a widely popular bind server is provided, which is the most common server software for building DNS servers. Introduction to the installation of bind now a lot of articles, now we will talk about the maintenance of the topic.
Let's take Cisco as an example to recognize that some important information about routers can be used as a router log on UNIX hosts on the internal network via the syslog mechanism. During the operation of the router, the router sends the log
Today, look at the postfix mail server sent log, found that the size of the Maillog has been 1.3G, and is not segmented imaging maillog.1 maillog.2. That's weird!
What is this for? The original two days ago changed the location of the mail log, the
sudo is a Linux system Management Directive, a tool that allows a system administrator to allow ordinary users to perform some or all of the root commands, such as HALT,REBOOT,SU, and so on. This will not only reduce the root user login and
First, the installation of the service side
Yum source New, if any, you can omit
# cat >>/etc/yum.repos.d/sohu.repo
Install lamp environment and rsyslog, if have lamp, only need to install Rsyslog Rsyslog-mysql can
Yum install rsyslog
(based on Redis 2.6)
Base section Settings:
Daemonize No
#默认情况下redis is not running in the daemon mode.
Pidfile/var/run/redis.pid
#在守护进程模式下, the location where the PID process number file path is stored
Port 6379
#监听的端口号, set to 0, Redis will
Logs are important for security, and he records a variety of things that happen every day in the system, and you can use him to check the cause of the error or the traces left by the attacker at the time of the attack. The main functions of the log
Linux under the Firewall (firewall) from the birth to the present, the firewall has experienced four stages of development: the first stage: the firewall based on the router, the second stage of the user Firewall tool sets; Phase III: A firewall
With the rapid development of information technology, more and more devices in the network, and gradually we found that relying on traditional means to a table analysis equipment (routers, switches, firewalls, servers, databases, middleware, etc.)
This article describes how to configure and use the tools and features provided by the PIX firewall to monitor and configure the system and monitor network activity. It consists of the following sections:
Remote system administration using
One: Principle:
Logging is important to the security of the system, and it records a variety of things that happen to the system every day that users can use to check the cause of the error or to find
Traces left by the attackers. The main
Many people use the server permissions are really bad management, misoperation and other causes of failure, can not be investigated, the best way is to record the user operation in real time to the log, and pushed to the remote log server. Including
Ubuntu 14.04 with Chrome browser content display normal but tab display garbled
Ubuntu 14.04 installation mysq times wrong problem
Ubuntu 12.04 Create user failure how to solve
Ubuntu installation software prompts you not to open the lock
This article mainly introduced the PHP network Operation function Summary, this article has enumerated such as GETHOSTBYADDR, gethostbyname, Header_remove, Http_response_code, Ip2long and so on network frequently uses the function, Need friends can
With the popularization and deepening of the network application, the requirement of the two-layer switch is not only limited to the data forwarding performance, service quality (QoS) and so on, the network security idea is becoming the important
These two days on the SuSE installation and configuration of FTP, encountered a lot of problems, here to do a summary:
First, installation
SuSE's graphical user interface does a good job, so the installation process is relatively simple.
1, open
I. Configuring EXTMAIL mail usage and management platform
1. Deploy Extmail Mail Use interface:
1> unpack: [Root@mail ~]# tar zxvf unix-syslog-1.1.tar.gz
[Root@mail ~]# tar zxvf dbi-1.607.tar.gz
[Root@mail ~]# tar zxvf dbd-mysql-4.011.tar.gz
PHP is so tightly integrated with Web pages that it's easy to forget that the language can also be used to perform other functions--Data encryption, window application and interface programming are three examples. Since network programming is the
I. Account security
1.1 Lock the redundant self-built account in the system
Check method:
Execute command
#cat/etc/passwd
#cat/etc/shadow
Check the account, password file, and the system administrator to confirm the unnecessary account. For
System log and exception handling ①
System needs to be more and more automated, we need to introduce logging and exception capture
The Administrator's action record needs to be recorded to see which modules are frequently manipulated, what are the
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