juniper junos

Juniper VSRX Firewall ha configurationTopological structure of experimental network650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/54/2B/wKiom1R6wn6S3GsPAACvyJKrKGQ317.jpg "/>Experimental objectives Complete the failover configuration of the SRX firewall Connectivity of test equipment Experiment Configuration steps: The GE-0/0/1 and GE-0/0/2 ports of the two VSRX firewalls are interconnected using a network cable or us

Juniper DOS ClassificationFirst, the network DOS1.SYN floodingUse three handshake for spoofing attacksA sends a SYN fragment to B, B responds with a syn/ack fragment, and a responds with an ACK fragment.The source IP in the Syn fragment sent by this is an unreachable address, so the response sent by B will time out,This creates a SYN flooding attack that fills the host memory buffer and the host will not be able to handle the newA TCP connection reque

To ensure the high availability of network applications, two firewall devices of the same model can be deployed at the edge of the network to be protected during the deployment of Juniper firewall to implement HA configuration. Juniper firewall provides three high-availability application configuration modes: master-slave mode, master-master mode, and dual-master redundancy mode. Here, we only describe the

, an empty TXT document will still be created, so you need to make another judgment here and write the required values to fa[]‘‘‘Fa.append (host+ ' \ n ')Print (host+ "is failed")ElseWith open (P2, ' R ') as F:Lines=f.readlines ()With open (P2, ' W ') as W:For I in lines:I=i.replace ('---(more)---', ')I=i.replace (",")I=i.replace (' \ R ', ')I=i.replace (' \ n ', ')If i== ':Passelse:W.write (i+ ' \ r \ n ')def FC_SSG (p2):If Os.path.getsize (p2) ==0:#print (host+ ' is failed ')‘‘‘When the passwo

Processing process: The Juniper SRX Series firewall is based on the Juniper Jnos system. Initial login username is root and password respectively null. Change your password first after entering. The order is as follows: Root> Root> Configure Entering configuration mode [Edit] root# root# Set System Root-authentication Plain-text-password root# New password:jun20110101 root# Retype New password:jun

Method One: SRX210 Recovery Password Process: 1, the boot has been pressed empty bar once: space 2,=>bootd 3,loader> boot-s 4,enter full Pathname The shell or ' recovery ' for root password recovery or return for/bin/sh:recovery 5, new device password: Root> Edit root# Set System Root-authentication Plain-text-password New Password: Retype new Password: root# Commit root# Run Request system reboot Start | Reboot for about 4 minutes Method Two:

1. Connect to the firewall via Xshell telnetFirewall IP address is 164.215.15.210 or 164.212.233.205Connecting to 164.215.15.210 ...Connection established.To escape to local shell, press ' ctrl+alt+] '.Cxds (TTYP0)2. Enter the current user name and passwordLogin:admin User NamePassword: Password---JUNOS 11.4r1.6 built 2011-11-15 12:44:14 UTC3. Change the password[Email protected]> Configure Enter configuration modeEntering configuration mode[Edit][Ema

The L2TP tunnel (L2TP tunnel) refers to the logical link between the second-tier Tunneling Protocol (L2TP) endpoints: LAC (L2TP access aggregator) and LNS (L2TP network server). When LNS is a server, LAC is the initiator of the tunnel and waits for the new tunnel. Once a tunnel is established, the new communication between this point will be two-way. In order to be useful to the network, high-level protocols such as Point-to-Point Protocol (PPP) are then passed through the L2TP tunnel. Today, j

loopback interface. The specific method is to take 0 of the starch decimal ring back to the IP address of 12 characters address, then bar 12 characters 4 digits for a group, divided into 3 groups, separated by dots, in the form of 16. A node can have up to 3 NSAP addresses, but the sysid of each address must be the same, except for the regional address. When a router running is-is has more than one net address, it is called a multihomed (multihoming). It is important to note that multiple hosts

Mip-definitionMIP (Mapped IP) is a 1 to 1 mapping of a public IP address to an IP address on the Internal side of the Juniper firewallMIP-to-one mapping, mapping from public IP to private network IPConfiguring a MIP to access a single device on the private networkSet int eth0/0 Zone UntrustSet int eth0/0 IP 1.1.1.250/24Set int eth0/0 routeSet int ETH0/1 Zone TrustSet int ETH0/1 IP 192.168.1.1/24Set int ETH0/1 routeSet int eth0/0 mip 1.1.1.100 host 192

1. Experiment topology: 2. ip planning: Eth1: 192.168.101.68/24 Eth3: 192.168.100.10/24 3. device description: The switch used in the trust region is Digital China DCS-3950S The switch in the untrust area is the quidwayS3526E of H3C. Firewall: Juniper Netscreen-25 4. Device Configuration 4.1 configure ns-a for the first Firewall Login: netscreenPassword:NS-A (M)-> get systemProduct Name: NetScreen-25Serial Number: 0096052007001238, Control Number: 00

1. Firewall DNS Server Fire-> set dns host dns1 202.106.0.20 Get config | include dns A maximum of three DNS servers can be specified; * The firewall can resolve the domain name address. 2. You can configure the NTP server in the firewall. Set ntp server followed by the name, source address, and so on; È set ntp server time.windows.com È Set ntp server key-id 1 preshare-key cjclub È Set ntp server src-interface eth1 È Set ntp interval 1 Request synchronization interval; À set ntp max-adjustment

Problem description: When the SSG series firewalls of Juniper can access each other through VPN dial-in or direct mutual access between different network segments, sometimes PING can be reached, but the service cannot be accessed, such as WEB and shared files. Problem Analysis: These problems are often caused by the identification of data packet fragments by devices during data transmission. Generally, data packets are too large and nee

Juniper Firewall basic CommandsCommon View CommandsGet int View interface configuration informationGet int ethx/x View specified interface configuration informationGet MIP View Map IP relationshipsGet Route View Route tableGet Policy ID x view specified policiesGet NSRP View NSRP information, then can take parameters to see the specific VSD group, port monitoring settings, etc.Get per CPU de view CPU utilization informationGet per Sessionde View new s

; 3. Configure vlan1 IP, that is, manage IP 650) this.width=650; "Width=" 553 "height=" 306 "src="/e/u261/themes/default/images/spacer.gif "style=" Background:url("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd; "alt=" Spacer.gif "/> 4. to view the configuration of all ports:650) this.width=650; "Width=" 553 "height=" 238 "src="/e/u261/themes/default/images/spacer.gif "style=" Background:url("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border

security-zone Untrust interfaces ge-0/0/0.0 host-inbound-traffic system-services p IngNote: By default, ICMP is required to be released, except for business ports that are not managed to be ping-through.Second, Juniper SRX NAT1. Types of NAT1.1 Source Nat:interface1.2 Source NAT:p Ool1.3 Destination NAT1.4 Static NAT2. Configuration Example2.1 Interface-based source NAT[Email protected]# Set security NAT source Rule-set 1 from Zone Trust[Email protec

Juniper Firewall set up the system clock, there are three ways, choose a way to complete the corresponding setup work:1, using the command line method, in the CLI command line interface settings, using the command set clock mm/dd/yyyy hh:mm:ss.2. Use the "Sync Clock with Client" option in the Web management interface:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/58/22/wKioL1SqOzKRtV5-AAVqFpekUuw546.jpg "title=" Qq20150105151906.png "alt="

First, Juniper Open SNMP The steps to turn on SNMP are the same as yesterday's reference to configuration methods, which is skipped here.Second, install the configuration MRTG 1, installation MRTG's official page is http://oss.oetiker.ch/mrtg/, the latest version is 2.17.4. You can choose to compile the installation using the source package, or you can select the system source installation. The code is as follows Copy Code

Experimental environment: Company game online, need to build a VPN channel for authentication and billing system for different areas of internal communications, as well as daily maintenance server is also through VPN connection. To achieve a secure encrypted environment Solution: Using juniper netscreen SSG140-SB automatic VPN function to solve this problem, because to set up a lot of points, setting almost all the same, to Shanghai room and Changch

1 Juniper Router enters configuration mode for the first time, you must set the login password, or the commit prompts for a root-authentication password, and the login password method is set as follows: Root#set system Root-authentication Plain-text-password New Password: (the password here must be a combination of numbers + letters, at least 6 digits) Retype new Password: After the setup is complete, the root login password is set successfully.