permissions (read-only or read/write) are used to access the Management Information Library (MIB) in SNMP.
The Management Information Library (MIB) stores all the important information of the system.
That is to say, if we can know the "query password" of community strings, We can spy on the system information.
Unfortunately, many network equipment manufacturers and operating system manufacturers use the comparison in their initial status.
The unified "query password" provides us with sufficient
the SNMP service properties in the Security tab are set to accept SNMP packets from any host so that we can debug.The protocol uses the OID (object identifier) as the content of the query between the two devices that have already established the connection, and the OID content can refer to http://www.cnblogs.com/aspx-net/p/3554044.html. The OID is part of the protocol definition, and some device vendors can define it themselves.Complete the above steps, and familiar with the basic OID instructi
://blog.csdn.net/zougangx/article/details/6977936. Note that the Security tab of the SNMP Service attribute allows us to Accept snmp Packets from any host for debugging.The OID (object identifier) is used as the query content for the connection between two devices. For details about the OID content, see http://www.cnblogs.com/aspx-net/p/3554044.html. Some of the OID protocols are well defined, and some device vendors can define it themselves.After completing the above steps and familiarizing mys
the devices and software behind the firewall, as well as the firewall itself, to ensure that your network is not the target of intruders, and to ensure that every possible internet access point is protected by the firewall.
Here is a patch.
Http://www.microsoft.com/technet/security/bulletin/ms02-006.mspx
I believe that when we use X-scan, the weak SNMP password is always public, but few people pay attention to it and do not know how to use it. Now let's talk about its purpose, he c
Firewall.
Next need to be able to carry on SNMP communication tool, relatively simple have snmputil, everybody can go to download on the net.The Snmputil command rules are:Snmputil [Get|getnext|walk] Agent Community OID [OID ...][Get|getnext|walk] is the message type, the operation we are doing is getAgent refers to the IP or name of the network device that you want to operate, that is, the 192.168.1.1Comm
obtain some information about the system by using the default Management Group string public read feature,Specifically: interface table, route table and ARP table, TCP table and UDP table, device table and storage table, progress table and softwareTable, user table, and shared table.
Snmptool, snmputil.exe
For example:
1, or the number of network interfaces:
C:/snmputil get localhost public. 1.3.6.1.2.1.2.1.0
2. Display All SNMP variable content
C:/
First, install SNMPLet's talk about it today. Install the SNMP protocol under XP with the following installation steps: To this, the XP system installs the SNMP the work to be complete completely.Second, configure SNMPAfter installing the SNMP protocol, you will also need to configure the "community name", with the following configuration steps:Locate the SNMP service as shown in: Click "Add" button to add a community name and set access permissions, such as: public, access r
iptables firewall is currently not open to UDP 161 port access, that is, the outside of the computer is unable to access the SNMP service under Linux, you can use the "iptables-i input-p UDP--dport 161-j ACCEPT"command to add the UDP 161 port to the Iptables firewall, and then execute the"iptables save"command to save the firewall changes as shown in:We can test SNMP access under Linux using the Snmputil.exe tool under the window System and test whether the UDP 161 port of Linux is open to the
Contact Us
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.