: GAUGE: 120: 0: NaNDS: cpu_wio: GAUGE: 120: 0: NaNDS: cpu_idle: GAUGE: 120: 0: NaNRRA: AVERAGE: 0.5: 1: 244 # RRA is the form of data storage, Data TablesRRA: AVERAGE: 0.5: 24: 244 # CF merge statistics include average, max, min, and lastRRA: AVERAGE: 0.5: 168: 244 #0.5 is xff, indicating that when the proportion of the missing data volume exceeds 0.5, the data is displayed as null.RRA: AVERAGE: 0.5: 672: 244 # PDP, a data point calculated, such as the AVERAGE value.RRA: AVERAGE: 0.5: 5760: 374
Party B shall ensure that the confidential information provided by Party A is properly preserved, and shall bear the relevant liability, including compensation, for the following matters that occur during the period of the confidential information: 2.2.1 theft of the confidential information, accidental leakage or other leakage and/or damage, or loss; 2.2.2 any employee (including but not limited to existing employees and former employees) entitled to obtain confidential information from Party
not active at this time,But as long as the related interface is opened, the span will become active.The monitoring port is preferably> = the bandwidth of the controlled port. Otherwise, packet loss may occur.
SPAN traffic -- span trafficUse a local span to monitor all network traffic, including multicast, Bridge Protocol Data Unit (BPDU), and CDP,VTP, DTP, STP, pagp, lacp packets. rspan cannot monitor layer-2 protocols.
Traffic types -- traffic typeT
dynamic hongyi_dynamic_map!!!Interface Ethernet0No ip addressNo ip redirectsNo ip unreachablesNo ip proxy-arpNo ip mroute-cacheHalf-duplexPppoe enablePppoe-client dial-pool-number 1No cdp enable!Interface FastEthernet0Ip address 172.16.0.10 255.255.255.0.0Ip access-group local_r0000inNo ip redirectsNo ip unreachablesNo ip proxy-arpIp nat insideIptcp adjust-mss 1452No ip mroute-cacheSpeed autoNo cdp enable!
of Cisco 2501-above
Current configuration:
!
Version 11.2:
No service udp-small-servers
No service tcp-small-servers
!
Hostname above
!
Enable secret 5 $1 $ O1aq $ Kxgp1A0Eulqug8SbCm6rdl
Enable password cisco
!
Username down password 7 095C5E19
Chat-script lab abort error abort busy abort "no answer" at h "OK" ATDT \ T"
TIMEOUT 60 CONNECT \ c
!
Interface Ethernet0
Ip address 192.192.193.1 255.255.255.0
!
Interface Serial0
Ip address 192.192.192.1 255.255.255.0
Bandwidth 64
Clockrate 64000
!
Int
MAC addresses flooding
Simulate a large number of source MAC addresses to fill the Mac table of the switch
You can solve this problem through port security.
VLAN hoppingAccess other VLANs by changing the VLAN-id of PacketStrictly set which VLANs are allowed by the trunk and put unused ports in the common VLAN (that is, vlan1)
Attacks between devices on a common VLANDevices belonging to the same VLAN can also attack each other.Solve the problem through pvlan
DHCP starvationAttackers send n
troubleshooting.Second, restrictions on the protocol. To use the layer-2 routing tracking function, you must run the CDP protocol on all switches and interfaces in the network, and the CDP protocol must work properly. CDP becomes the Cisco Discovery protocol. It is mainly used to obtain the Protocol addresses of adjacent devices and platforms for discovering the
not satisfied with the final result, the regulatory authorities should take appropriate, though.
Third, regulatory authorities should expect banks to have higher capital than the minimum capital regulatory standard, and should have the capacity to require banks to hold higher than the minimum standard of capital.
4. regulatory authorities should seek early intervention to prevent banks from having lower capital than the minimum level required to withstand risks; if not protected or recovered, i
local data storage or network data transmission, for sensitive data needs to be encrypted, encryption algorithm is divided into symmetric encryption and asymmetric encryption, symmetric encryption algorithm commonly used AES, 3DES, asymmetric encryption algorithm is generally used RSA. At this point, if a secure key management scheme is not adopted, it is easy to cause a key leak. Common methods of unsafe Key management include: Write a symmetric key or private key to die in the configuration f
are weak links?
SNS type website, similar to Facebook, kaixin001.com and so on real name registration and the realistic social relations are basically the strong link relations.Watercress, Last.fm and other based on the same hobby or cultural basis of the typical weak link mode, of course, weak links may be converted to strong links.
After we figure out the strong link, we also need to know that the cost of strong and weak links and information disclosure
After you open dynamic Domain name resolution, you can specify the DNS serviceRL (config) # interface serial 0 Enter serial 0 interface configuration modeRL (CONFIG-IF) # no shutdown router factory default all ports off, use this command to enable them to openRL (CONFIG-IF) # Encapsulation PPP encapsulated PPPRL (CONFIG-IF) # Clockrate 64000 If the DCE is required to set the clock rate, if it is DTE make it unnecessarySet upRL (CONFIG-IF) # Bandwidth 64 set port bandwidth to 64KRL (CONFIG-IF) #
router diagnostic information
The command to close is as follows:
The following is a reference segment: no service tcp-small-servers no service udp-small-servers
5. Check the current user list of the vro.
The close command is:
The following is a reference clip: no service finger
6. disable CDP Service
On the basis of the OSI Layer 2 protocol (link layer), you can find some configuration information of the Peer router, such as the device platform, ope
1. disable CDP (Cisco Discovery Protocol ). For example:Router (Config) # no cdp runRouter (Config-if) # no cdp enable2. Disable other TCP and UDP Small services.Router (Config) # no service tcp-small-serversRouter (Config) # no service udp-samll-servers3. Disable the Finger service.Router (Config) # no ip fingerRouter (Config) # no service finger4. We recommend
receiver of the route information. There are two authentication methods. The "plain text mode" is of low security. We recommend that you use the "MD5 mode ".
2. Physical security protection of routers
A vro control port is a port with special permissions. If an attacker attempts to physically access a vro and restarts after a power failure, the system implements the "password repair process" and then logs on to the vro to completely control the vro.
3. Protect the vro Password
In the vro config
password is stored in encrypted form, the plaintext of the password may still be cracked. Once the password is leaked, the network is completely insecure.
4. Check the router diagnostic information.
The command to disable the service is as follows: no service tcp-small-servers no service udp-small-servers
5. The current user list of the vro is blocked.
The command to close is no service finger.
6. disable CDP.
On the basis of the OSI Layer 2 protocol
information.
The command to disable the service is as follows: no service tcp-small-servers no service udp-small-servers
5. The current user list of the vro is blocked.
The command to close is no service finger.
6. disable CDP.
On the basis of the OSI Layer 2 protocol (link layer), you can find some configuration information of the Peer router, such as the device platform, operating system version, port, and IP address. You can run the command: no
diagnostic information.
The command to disable the service is as follows: no service tcp-small-servers no service udp-small-servers
5. The current user list of the vro is blocked.
The command to close is no service finger.
6. disable CDP.
On the basis of the OSI Layer 2 protocol (link layer), you can find some configuration information of the Peer router, such as the device platform, operating system version, port, and IP address. You can run the com
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