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SNMP陷阱在PHP / Linux中(SNMP Trap In PHP/Linux)

有没有人知道如何使用PHP发送SNMP陷阱? 或者如何在Linx中发送SNMP陷阱? 我使用Net-SNMP从终端发送陷阱。 但它没有告诉MIB需要放在哪里,我无法使用'snmptrap'命令发送陷阱。 我需要在RedHat Linux服务器中使用它。

MIB搜索路径:/home/user/.snmp/mibs:/usr/local/share/snmp/mibs找不到模块(MY-MIB):第1行(无)MY-MIB :: clientrap:未知对象标识符

这是我得到的错误。 我确信我把MIB文件放在/home/user/.snmp/mibs/ usr / local / share / snmp / mibs中,就像NET-SNMP建议的那样。 然后我不知道错误是怎么来的。 还有其他MIB搜索路径吗? 我不知道。


Is there anyone know how to send SNMP Trap using php? Or How to send SNMP traps in Linx? I used Net-SNMP to send Traps from the terminal. But it doesn't tell where exactly the MIB need to be placed and I am unable to send traps using 'snmptrap' command. I need to employ it in RedHat Linux server.

MIB search path: /home/user/.snmp/mibs:/usr/local/share/snmp/mibs Cannot find module (MY-MIB): At line 1 in (none) MY-MIB::clientrap: Unknown Object Identifier

This is the error I am getting. I am sure that I put the MIB file in the /home/user/.snmp/mibs and /usr/local/share/snmp/mibs as NET-SNMP suggests. Then I don't know how the error come. Is there any other MIB search path? I don't know.


原文:https://stackoverflow.com/questions/35768434
更新时间:2023-01-27 11:01

最满意答案

我想你想要union all操作:

SELECT *
FROM main_office
union all
select *
from second_office
union all
select *
from third_office;

这会将所有行附加在一起。 您的原始版本是表格的笛卡尔积。 也就是说,输出由来自所有三个表的所有行的所有组合组成。 因此,总行输出将是三个表中行的乘积。 并且,一个表中没有行意味着不输出任何行。


I think you want the union all operation:

SELECT *
FROM main_office
union all
select *
from second_office
union all
select *
from third_office;

This appends all the rows together. Your original version was doing a Cartesian product of the tables. That is, the output consisted of all combinations of all rows from all three tables. So, the total rows output would be the product of the rows in the three tables. And, no rows in one table means that no rows are output.

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