|
1 |
| -systemctl |
2 |
| -=== |
3 |
| - |
4 |
| -系统服务管理器指令 |
5 |
| - |
6 |
| -## 补充说明 |
7 |
| - |
8 |
| -**systemctl命令** 是系统服务管理器指令,它实际上将 service 和 chkconfig 这两个命令组合到一起。 |
9 |
| - |
10 |
| -<table> |
11 |
| - |
12 |
| -<tbody> |
13 |
| - |
14 |
| -<tr> |
15 |
| - |
16 |
| -<td>任务</td> |
17 |
| - |
18 |
| -<td>旧指令</td> |
19 |
| - |
20 |
| -<td>新指令</td> |
21 |
| - |
22 |
| -</tr> |
23 |
| - |
24 |
| -<tr> |
25 |
| - |
26 |
| -<td>使某服务自动启动</td> |
27 |
| - |
28 |
| -<td>chkconfig --level 3 httpd on</td> |
29 |
| - |
30 |
| -<td>systemctl enable httpd.service</td> |
31 |
| - |
32 |
| -</tr> |
33 |
| - |
34 |
| -<tr> |
35 |
| - |
36 |
| -<td>使某服务不自动启动</td> |
37 |
| - |
38 |
| -<td>chkconfig --level 3 httpd off</td> |
39 |
| - |
40 |
| -<td>systemctl disable httpd.service</td> |
41 |
| - |
42 |
| -</tr> |
43 |
| - |
44 |
| -<tr> |
45 |
| - |
46 |
| -<td>检查服务状态</td> |
47 |
| - |
48 |
| -<td>service httpd status</td> |
49 |
| - |
50 |
| -<td>systemctl status httpd.service (服务详细信息) systemctl is-active httpd.service (仅显示是否 Active)</td> |
51 |
| - |
52 |
| -</tr> |
53 |
| - |
54 |
| -<tr> |
55 |
| - |
56 |
| -<td>显示所有已启动的服务</td> |
57 |
| - |
58 |
| -<td>chkconfig --list</td> |
59 |
| - |
60 |
| -<td>systemctl list-units --type=service</td> |
61 |
| - |
62 |
| -</tr> |
63 |
| - |
64 |
| -<tr> |
65 |
| - |
66 |
| -<td>启动某服务</td> |
67 |
| - |
68 |
| -<td>service httpd start</td> |
69 |
| - |
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| -<td>systemctl start httpd.service</td> |
71 |
| - |
72 |
| -</tr> |
73 |
| - |
74 |
| -<tr> |
75 |
| - |
76 |
| -<td>停止某服务</td> |
77 |
| - |
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| -<td>service httpd stop</td> |
79 |
| - |
80 |
| -<td>systemctl stop httpd.service</td> |
81 |
| - |
82 |
| -</tr> |
83 |
| - |
84 |
| -<tr> |
85 |
| - |
86 |
| -<td>重启某服务</td> |
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| - |
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| -<td>service httpd restart</td> |
89 |
| - |
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| -<td>systemctl restart httpd.service</td> |
91 |
| - |
92 |
| -</tr> |
93 |
| - |
94 |
| -</tbody> |
95 |
| - |
96 |
| -</table> |
97 |
| - |
98 |
| -### 实例 |
99 |
| - |
100 |
| -1.启动nfs服务 |
101 |
| - |
102 |
| -``` |
103 |
| -systemctl start nfs-server.service |
104 |
| -``` |
105 |
| - |
106 |
| -2.设置开机自启动 |
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| - |
108 |
| -``` |
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| -systemctl enable nfs-server.service |
110 |
| -``` |
111 |
| - |
112 |
| -3.停止开机自启动 |
113 |
| - |
114 |
| -``` |
115 |
| -systemctl disable nfs-server.service |
116 |
| -``` |
117 |
| - |
118 |
| -4.查看服务当前状态 |
119 |
| - |
120 |
| -``` |
121 |
| -systemctl status nfs-server.service |
122 |
| -``` |
123 |
| - |
124 |
| -5.重新启动某服务 |
125 |
| - |
126 |
| -``` |
127 |
| -systemctl restart nfs-server.service |
128 |
| -``` |
129 |
| - |
130 |
| -6.查看所有已启动的服务 |
131 |
| - |
132 |
| -``` |
133 |
| -systemctl list -units --type=service |
134 |
| -``` |
135 |
| - |
136 |
| -开启防火墙22端口 |
137 |
| - |
138 |
| -``` |
139 |
| -iptables -I INPUT -p tcp --dport 22 -j accept |
140 |
| -``` |
141 |
| - |
142 |
| -如果仍然有问题,就可能是SELinux导致的 |
143 |
| - |
144 |
| -关闭SElinux: |
145 |
| - |
146 |
| -修改`/etc/selinux/config`文件中的`SELINUX=””`为disabled,然后重启。 |
147 |
| - |
148 |
| -彻底关闭防火墙: |
149 |
| - |
150 |
| -``` |
151 |
| -sudo systemctl status firewalld.service |
152 |
| -sudo systemctl stop firewalld.service |
153 |
| -sudo systemctl disable firewalld.service |
154 |
| -``` |
155 |
| - |
156 |
| - |
157 |
| -<!-- Linux命令行搜索引擎:https://jaywcjlove.github.io/linux-command/ --> |
| 1 | +systemctl |
| 2 | +=== |
| 3 | + |
| 4 | +系统服务管理器指令 |
| 5 | + |
| 6 | +## 补充说明 |
| 7 | + |
| 8 | +**systemctl命令** 是系统服务管理器指令,它实际上将 service 和 chkconfig 这两个命令组合到一起。 |
| 9 | + |
| 10 | +<table> |
| 11 | + |
| 12 | +<tbody> |
| 13 | + |
| 14 | +<tr> |
| 15 | + |
| 16 | +<td>任务</td> |
| 17 | + |
| 18 | +<td>旧指令</td> |
| 19 | + |
| 20 | +<td>新指令</td> |
| 21 | + |
| 22 | +</tr> |
| 23 | + |
| 24 | +<tr> |
| 25 | + |
| 26 | +<td>使某服务自动启动</td> |
| 27 | + |
| 28 | +<td>chkconfig --level 3 httpd on</td> |
| 29 | + |
| 30 | +<td>systemctl enable httpd.service</td> |
| 31 | + |
| 32 | +</tr> |
| 33 | + |
| 34 | +<tr> |
| 35 | + |
| 36 | +<td>使某服务不自动启动</td> |
| 37 | + |
| 38 | +<td>chkconfig --level 3 httpd off</td> |
| 39 | + |
| 40 | +<td>systemctl disable httpd.service</td> |
| 41 | + |
| 42 | +</tr> |
| 43 | + |
| 44 | +<tr> |
| 45 | + |
| 46 | +<td>检查服务状态</td> |
| 47 | + |
| 48 | +<td>service httpd status</td> |
| 49 | + |
| 50 | +<td>systemctl status httpd.service (服务详细信息) systemctl is-active httpd.service (仅显示是否 Active)</td> |
| 51 | + |
| 52 | +</tr> |
| 53 | + |
| 54 | +<tr> |
| 55 | + |
| 56 | +<td>显示所有已启动的服务</td> |
| 57 | + |
| 58 | +<td>chkconfig --list</td> |
| 59 | + |
| 60 | +<td>systemctl list-units --type=service</td> |
| 61 | + |
| 62 | +</tr> |
| 63 | + |
| 64 | +<tr> |
| 65 | + |
| 66 | +<td>启动某服务</td> |
| 67 | + |
| 68 | +<td>service httpd start</td> |
| 69 | + |
| 70 | +<td>systemctl start httpd.service</td> |
| 71 | + |
| 72 | +</tr> |
| 73 | + |
| 74 | +<tr> |
| 75 | + |
| 76 | +<td>停止某服务</td> |
| 77 | + |
| 78 | +<td>service httpd stop</td> |
| 79 | + |
| 80 | +<td>systemctl stop httpd.service</td> |
| 81 | + |
| 82 | +</tr> |
| 83 | + |
| 84 | +<tr> |
| 85 | + |
| 86 | +<td>重启某服务</td> |
| 87 | + |
| 88 | +<td>service httpd restart</td> |
| 89 | + |
| 90 | +<td>systemctl restart httpd.service</td> |
| 91 | + |
| 92 | +</tr> |
| 93 | + |
| 94 | +</tbody> |
| 95 | + |
| 96 | +</table> |
| 97 | + |
| 98 | +### 实例 |
| 99 | + |
| 100 | +1.启动nfs服务 |
| 101 | + |
| 102 | +``` |
| 103 | +systemctl start nfs-server.service |
| 104 | +``` |
| 105 | + |
| 106 | +2.设置开机自启动 |
| 107 | + |
| 108 | +``` |
| 109 | +systemctl enable nfs-server.service |
| 110 | +``` |
| 111 | + |
| 112 | +3.停止开机自启动 |
| 113 | + |
| 114 | +``` |
| 115 | +systemctl disable nfs-server.service |
| 116 | +``` |
| 117 | + |
| 118 | +4.查看服务当前状态 |
| 119 | + |
| 120 | +``` |
| 121 | +systemctl status nfs-server.service |
| 122 | +``` |
| 123 | + |
| 124 | +5.重新启动某服务 |
| 125 | + |
| 126 | +``` |
| 127 | +systemctl restart nfs-server.service |
| 128 | +``` |
| 129 | + |
| 130 | +6.查看所有已启动的服务 |
| 131 | + |
| 132 | +``` |
| 133 | +systemctl list-units --type=service |
| 134 | +``` |
| 135 | + |
| 136 | +开启防火墙22端口 |
| 137 | + |
| 138 | +``` |
| 139 | +iptables -I INPUT -p tcp --dport 22 -j accept |
| 140 | +``` |
| 141 | + |
| 142 | +如果仍然有问题,就可能是SELinux导致的 |
| 143 | + |
| 144 | +关闭SElinux: |
| 145 | + |
| 146 | +修改`/etc/selinux/config`文件中的`SELINUX=””`为disabled,然后重启。 |
| 147 | + |
| 148 | +彻底关闭防火墙: |
| 149 | + |
| 150 | +``` |
| 151 | +sudo systemctl status firewalld.service |
| 152 | +sudo systemctl stop firewalld.service |
| 153 | +sudo systemctl disable firewalld.service |
| 154 | +``` |
| 155 | + |
| 156 | + |
| 157 | +<!-- Linux命令行搜索引擎:https://jaywcjlove.github.io/linux-command/ --> |
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