码神-day2-linux

1、A：答：首先进入cd /etc/firewalld/zones/，

然后打开public.xml,vi 打开并编辑文本，

然后把<service name="ssh"/>删掉就行，接着保存退出。

重新加载防火墙配置：firewall-cmd --reload

第二种方法:

[root@bogon zones]# firewall-cmd --add-port=80/tcp --permanent

success

查看防火墙放开的服务:

[root@bogon zones]# firewall-cmd --list-all

public (default, active)

interfaces: eno16777736

sources:

services: dhcpv6-client ssh

ports:

masquerade: no

forward-ports:

icmp-blocks:

rich rules:

删除ssh服务：

[root@bogon zones]# firewall-cmd --remove-port=80/tcp --permanent

success

重新加载防火墙配置：firewall-cmd --reload

B：一、systemctl stop sshd.service

二、首先查22号端口的进程：[root@bogon zones]# lsof -i:22

# lsof -i:22

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

sshd 1532 root 3u IPv4 20972 0t0 TCP *:ssh (LISTEN)

sshd 1532 root 4u IPv6 20981 0t0 TCP *:ssh (LISTEN)

然后结束进程就可以：kill -9 1532

[root@bogon Desktop]# kill -9 1532

[root@bogon Desktop]#

C：systemctl disable postfix.service

2、CPU：lscpu Architecture:

x86_64

CPU op-mode(s): 32-bit, 64-bit

Byte Order: Little Endian

CPU(s): 1

On-line CPU(s) list: 0

Thread(s) per core: 1

Core(s) per socket: 1

Socket(s): 1

NUMA node(s): 1

Vendor ID: GenuineIntel

CPU family: 6

Model: 58

Model name: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz

Stepping: 9

CPU MHz: 2594.117

BogoMIPS: 5188.23

Hypervisor vendor: VMware

Virtualization type: full

L1d cache: 32K

L1i cache: 32K

L2 cache: 256K

L3 cache: 3072K

NUMA node0 CPU(s): 0

内存：

MemTotal: 1001332 kB

MemFree: 99124 kB

MemAvailable: 242788 kB

Buffers: 44 kB

Cached: 247152 kB

SwapCached: 40 kB

Active: 392876 kB

Inactive: 193748 kB

Active(anon): 279996 kB

Inactive(anon): 67968 kB

Active(file): 112880 kB

Inactive(file): 125780 kB

Unevictable: 16 kB

Mlocked: 16 kB

SwapTotal: 2097148 kB

SwapFree: 2097100 kB

Dirty: 16 kB

Writeback: 0 kB

AnonPages: 339452 kB

Mapped: 101868 kB

Shmem: 8536 kB

Slab: 87492 kB

SReclaimable: 35256 kB

主板：

System Information

Manufacturer: VMware, Inc.

Product Name: VMware Virtual Platform

Version: None

Serial Number: VMware-56 4d 0a 7d 85 9b 8d 28-0e 01 bf 90 8b 6a 91 d1

UUID: 7D0A4D56-9B85-288D-0E01-BF908B6A91D1

Wake-up Type: Power Switch

SKU Number: Not Specified

Family: Not Specified

Handle 0x0002, DMI type 2, 15 bytes

Base Board Information

Manufacturer: Intel Corporation

Product Name: 440BX Desktop Reference Platform

Version: None

Serial Number: None

Asset Tag: Not Specified

硬盘：

smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.10.0-327.el7.x86_64] (local build)

Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===

Vendor: VMware,

Product: VMware Virtual S

Revision: 1.0

User Capacity: 21,474,836,480 bytes [21.4 GB]

Logical block size: 512 bytes

Device type: disk

Local Time is: Wed Jul 13 00:06:23 2016 CST

SMART support is: Unavailable - device lacks SMART capability.

=== START OF READ SMART DATA SECTION ===

Error Counter logging not supported

Device does not support Self Test logging