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Object | evaluation | data | database (Source: http://www.ccidnet.com) I. Overview As with relational databases, there are many object-oriented databases (object-oriented Database,oodb) available on the market. However, there is no uniform standard

This article will explain to you what you see in the firewall record (Log? What do these ports mean? You will be able to use this information to determine whether I have been attacked by a Hacker? What does he/she want to do? This article is

This article will explain to you what you see in the firewall record (Log? What do these ports mean? You will be able to use this information to determine whether I have been attacked by a Hacker? What does he/she want to do? This article is

Because of the wide range of systems involved, it is impossible to clarify the logs of all UNIX-class systems, but most of them are similar. Below I will only use the common SunOS & RedHat for introduction. for other systems, see related information.

The virtual terminal in Linux is so-called virtual, because it is physically still a software console on this machine, rather than a real remote physical terminal, but the virtual terminal is actually more unified in the implementation, which is

In-depth firewall record   This article will explain to you what you see in the firewall record (log? What do these ports mean? You will be able to use this information to determine whether I have been attacked by a hacker? What does he/she want to

1024 The following is reserved for the system, and from 1024-65535 is used by the userFor personal writing applications, try not to use a port number between 0 and 1024.1024 to 65535 we can program with. This is not a Linux rule, it is the socket

Deep Firewall logging This article will explain to you what you see in the Firewall log (log). Especially what those ports mean ... This article will explain to you what you see in the Firewall log (log). Especially those ports, what do you mean?

Build a high-performance enterprise-level gateway and proxy server under FreeBSD FreeBSD + PF + squid 1. kernel Compilation To make FreeBSD a shared Internet server, we also need to compile a new kernel. (1) Compile the Kernel configuration

1. What is SSHSSH is a network protocol that is used to encrypt logins between computers2. Configure the OpenSSH service sideThe OpenSSH server is provided by packages such as OpenSSH, Openssh-server, etc. (installed by default) and has been added