How to access juniper networks

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You can configure the password retry limits for Telnet and SSH access. In this example, you configure the device to take the following actions for Telnet and SSH sessions:. Introduce a delay in multiples of 5 seconds between password retries that occur after the second password retry. Enforce a minimum session time of 40 seconds, during which a session cannot be disconnected.

You need two devices running Junos OS with a shared network link. No special configuration beyond basic device initialization management interface, remote access, user login accounts, etc. While not a strict requirement, console access to the R2 device is recommended. In this example, you create an IPv4 stateless firewall filter that logs and rejects Telnet or SSH packets sent to the local Routing Engine, unless the packet originates from the The filter is applied to the loopback interface to ensure that only traffic destined to the local device is affected.

You apply the filter in the input direction. An output filter is not used. As a result all locally generated traffic is allowed. To match packets originating from a specific subnet or IP prefix, you use the source-address IPv4 match condition applied in the input direction. To match packets destined for the Telnet port and SSH ports, you use the protocol tcp match condition combined with a port telnet and port ssh IPv4 match conditions applied in the input direction.

Figure 1 shows the test topology for this example. The firewall filter is applied to the R2 device, making it the device under test DUT. The R1 and the R2 devices share a link that is assigned a subnet of Both devices have loopback addresses assigned from the Static routes provide reachability between loopback addresses because an interior gateway protocol is not configured in this basic example.

The following example requires you to navigate various levels in the configuration hierarchy. If you use SSH or Telnet to access the R2 device directly, you will lose connectivity when the filter is applied.

We recommend that you have console access when configuring this example. If needed you can use the R1 device as a jump host to launch an SSH session to R2 after the filter is applied. Alternatively, consider modifying the sample filter to also permit the IP subnet assigned to the machine you use to access the R2 device. To quickly configure the R1 device, edit the following commands as needed and paste them into the CLI at the [edit] hierarchy level.

Be sure to issue a commit in configuration mode to activate the changes. To quickly configure the R2 device, edit the following commands as needed and paste them into the CLI at the [edit] hierarchy level. Consider using commit-confirmed when making changes that might affect remote access to your device.

You also configure Telnet and SSH access:. Complete the following steps to verify and commit your candidate configuration at the R1 device:. Confirm interface configuration with the show interfaces configuration mode command.

If the command output does not display the intended configuration, repeat the instructions in this example to correct the configuration. Use the show routing-options and show system services configuration mode commands. When satisfied with the configuration on the R1 device, commit your candidate configuration.

Complete the following steps to configure the R2 device. You begin by defining the stateless firewall filter that selectively blocks Telnet and SSH access:. This term permits Telnet and SSH from the specified source prefix s :. This term rejects SSH and Telnet from all other source addresses. See Firewall Filter Logging Actions for details on filter logging options. You can use the discard action to suppress generation of ICMP error messages back to the source.

See Firewall Filter Terminating Actions for details. Define the filter term tcp-estab. This term permits outbound access to the Internet to support connections to the Juniper Mist cloud tcp-established is a bit-field match condition, tcp-flags " ack rst " , which indicates an established TCP session, but not the first packet of a TCP connection :. Define the filter term default-term. This term accepts all other traffic. Recall that Junos OS stateless filters have an implicit deny term at their end.

The default-term overrides this behavior by terminating the filter with an explicit accept action. The termination of the filter results in all other traffic being accepted by the filer. For this example we are allowing all other traffic, but for your network you might want to secure the routing engine. See protecting the routing engine for more information. Configure the loopback interface, and apply the filter in the input direction:.

Complete the following steps to verify and commit your candidate configuration at the R2 device:. Confirm the configuration of the stateless firewall filter with the show firewall configuration mode command. Confirm interface configuration and filter application with the show interfaces configuration mode command.

Verify the static route used to reach the loopback address of the R1 device, and verify that Telnet and SSH access are enabled. When satisfied with the configuration on the R2 device, commit your candidate configuration. Confirm that the firewall filter to limit Telnet and SSH access is working properly.

Verify that the firewall filter correctly allows SSH and Telnet when the traffic is sourced from the From a host at an IP address within the This packet should be accepted, but the packet header information for this packet should not be logged in the firewall filter log buffer in the Packet Forwarding Engine.

By default the R1 device will source the SSH traffic from the egress interface used to reach the destination. As a result this traffic is sourced from the Verify that the firewall filter correctly rejects SSH and Telnet traffic that does not originate from the Generate SSH traffic sourced from the loopback address of the R1 device. The source address of this traffic is outside of the allowed Use the ssh This packet should be rejected, and the packet header information should be logged in the firewall filter log buffer.

The output shows that the SSH connection is rejected. This output confirms that the filter is generating an ICMP error message and that it correctly blocks SSH traffic when sent from a disallowed source address.

Generate Telnet traffic sourced from the loopback address of the R1 device. Use the telnet This packet should be rejected, and the packet header information for this packet should be logged in the firewall filter log buffer in the PFE. The output shows that the Telnet connection is rejected. This output confirms that the filter is generating an ICMP error message and that it correctly blocks Telnet traffic when sent from a disallowed source address.

Use the show firewall log command to verify that the firewall log buffer on the R2 device contains entries showing that packets with a source address of The output confirms that traffic from the The Action column displays an R to indicate that these packets were rejected.

The interface, transport protocol, and source and destination addresses are also listed. These results confirm that the firewall filter is working properly for this example. Help us improve your experience. Let us know what you think.

Do you have time for a two-minute survey? Maybe Later. System Services Overview For security reasons, remote access to the router is disabled by default. Note: To protect system resources, you can limit the number of simultaneous connections that a service accepts and the number of processes owned by a single user.

Optionally, you can include either or both of the following statements to change the defaults: connection-limit limit —Maximum number of simultaneous connections per protocol IPV4 and IPv6.

You can include either or both of the following statements to change the defaults: connection-limit limit —Maximum number of simultaneous connections per protocol IPV4 and IPv6. Optionally, you can include either or both of the following statements to change the defaults: connection-limit limit —Maximum number of simultaneous connections per protocol IPv4 and IPv6.

For example, a connection limit of 10 allows 10 IPv6 clear-text service sessions and 10 IPv4 clear-text service sessions rate-limit limit —Maximum number of connection attempts accepted per minute a value from 1 through Use the following statements to change the defaults: connection-limit limit —Maximum number of simultaneous connections per protocol IPv4 and IPv6. For information about other configuration settings, see the following topics:.

To control user access through SSH, include the root-login statement at the [edit systems services ssh] hierarchy level: [edit system services ssh ] root-login allow deny deny-password ; allow —Allows users to log in to the router or switch as root through SSH. To configure the router or switch to use version 2 of the SSH protocol, include the protocol-version statement and specify v2 at the [edit system services ssh ] hierarchy level: [edit system services ssh] protocol-version [ v2 ]; Systems in FIPS mode always use SSH protocol version v2.

Configure the Client Alive Mechanism The client alive mechanism is valuable when the client or server depends on knowing when a connection has become inactive. In the following example, unresponsive SSH clients will be disconnected after approximately seconds 20 x 5 : [edit system services ssh] client-alive-count-max 5; client-alive-interval 20;. Configure the SSH Fingerprint Hash Algorithm To configure the hash algorithm used by the SSH server when it displays key fingerprints, include the fingerprint-hash statement and specify md5 or sha at the [edit system services ssh] hierarchy level: [edit system services ssh] fingerprint-hash md5 sha ; The md5 hash algorithm is unavailable on systems in FIPS mode.

Verify that the host key is authentic. Configure Support for SCP File Transfer To configure a known host to support background SCP file transfers, include the archive-sites statement at the [edit system archival configuration] hierarchy level. Retrieve Host Key Information Manually To manually retrieve SSH public host key information, configure the fetch-from-server option at the [edit security ssh-known-hosts] hierarchy level.

Note: Lack of support for legacy cryptography in devices causes Junos Space device discovery to fail. Junos OS supports the following set of ciphers by default: chachapoly openssh. They are listed from the most secure to the least secure: aescbc aescbc aescbc 3des-cbc blowfish-cbc castcbc arcfour arcfour arcfour Junos OS supports the following set of key-exchange methods by default: curvesha ecdh-sha2-nistp ecdh-sha2-nistp ecdh-sha2-nistp group-exchange-sha2 dh-groupsha1 In Junos OS , the following key-exchange methods are not supported by default, but you can configure your device to support them: group-exchange-sha1 dh-group1-sha1.

To configure the SSH service to support legacy cryptography: Note: By configuring an ordered set of ciphers, key-exchange methods, or message authentication codes MACs , the newly defined set is applied to both server and client commands. See Also key-exchange. Note: There is no initiation command with outbound SSH. Note: Including the secret statement means that the device sends its public SSH host key every time it establishes a connection to the client.

To specify how the device reconnects to the server after a connection is dropped, include the reconnect-strategy statement at the [edit system services outbound-ssh client client-id ] hierarchy level: [edit system services outbound-ssh client-id ] reconnect-strategy sticky in-order ; You can also specify the number of retry attempts and set the amount of time before the reconnection attempts stop.

Configure Password Retry Limits for Telnet and SSH Access To prevent brute force and dictionary attacks, a device performs the following actions for Telnet or SSH sessions by default: Disconnects a session after a maximum of 10 consecutive password retries.

In this example, you configure the device to take the following actions for Telnet and SSH sessions: Allow a maximum of four consecutive password retries before disconnecting a session. To configure password retry limits for Telnet and SSH access:. Requirements You need two devices running Junos OS with a shared network link. Note: Our content testing team has validated and updated this example.

Overview and Topology In this example, you create an IPv4 stateless firewall filter that logs and rejects Telnet or SSH packets sent to the local Routing Engine, unless the packet originates from the Example Topology Figure 1 shows the test topology for this example.

Figure 1: Example Topology. Configuration The following example requires you to navigate various levels in the configuration hierarchy. Tip: Consider using commit-confirmed when making changes that might affect remote access to your device. You also configure Telnet and SSH access: [edit] user R1 set system host-name R1 user R1 set system services ssh root-login allow user R1 set system services telnet user R1 set routing-options static route Verify and Commit the Configuration at the R1 Device Step-by-Step Procedure Complete the following steps to verify and commit your candidate configuration at the R1 device: Confirm interface configuration with the show interfaces configuration mode command.

Tip: You can use the discard action to suppress generation of ICMP error messages back to the source. Note: For this example we are allowing all other traffic, but for your network you might want to secure the routing engine. Verify and Commit the Configuration at Device R2 Step-by-Step Procedure Complete the following steps to verify and commit your candidate configuration at the R2 device: Confirm the configuration of the stateless firewall filter with the show firewall configuration mode command.

Action Clear the firewall log on your router or switch. Note: By default the R1 device will source the SSH traffic from the egress interface used to reach the destination. Secure Web Access for Remote Management. Use an 8-bit data path. Open a Telnet session to the specified hostname or IP address. Force the Telnet session to an IPv4 destination. Suppress the display of symbolic names.

Specify the port number or service name on the host. Use the specified routing instance for the Telnet session. Use the specified source address for the Telnet session. Juniper Networks designs and markets IT networking products, such as routers, switches and IT security products.

Juniper is the third largest market-share holder overall for routers and switches used by ISPs. Juniper Networks' first product was the Junos router operating system, which was released on July 1, By , Juniper had developed five hardware systems and made seven new releases of its Junos operating system. By , Juniper had diversified into three major router applications: core routers, edge routers and routers for mobile traffic.

Juniper's first enterprise switch product was the EX , which was released in In a comparative technical test, Network World said the EX was the top performer out of network switches they tested in latency and throughput, but its multicast features were "newer and less robust" than other aspects of the product.

In February , Juniper introduced QFabric, a proprietary protocol [] methodology for transferring data over a network using a single network layer. Several individual products for the QFabric methodology were released throughout the year.

In February , several software and hardware improvements were introduced for Juniper routers, including a series of software applications ISPs could use to provide internet-based services to consumers.

Juniper Networks introduced the JProtect security toolkit in May In September , Juniper entered the market for enterprise access routers with three routers that were the first of the J-series product family.

It used the channel partners acquired with NetScreen to take the routers to market. The gateways sold well, but customers and resellers reported a wide range of technical issues starting in , which Juniper did not acknowledge until , when it began providing updates to the product software.

Mykonos' software is focused on deceiving hackers by presenting fake vulnerabilities and tracking their activity. This backdoor was inserted in the year into the versions of ScreenOS from 6. In December , Juniper Systems announced that they had discovered "unauthorized code" in the ScreenOS software that underlies their NetScreen devices, present from onwards.

The following month Juniper announced its SDN strategy, which included a new licensing model based on usage and new features for the Junos operating system. Northstar helps find the optimal path for data to travel through a network. Every year, since , Juniper holds SDN Throwdown competition to encourage students from universities across the world to access NorthStar Controller and build a solution around it to optimize network throughput. In March , Juniper announced a series of updates to the PTX family of core routers, the QFX family of switches, as well as updates to its security portfolio.

In October , Juniper announced a new offering called EngNet, which is a set of developer tools and information meant to help companies move toward automation, and replace the typical command-line interface.

Juniper Networks has operations in more than countries. In December , Juniper issued an emergency security patch for a backdoor in its security equipment. From Wikipedia, the free encyclopedia. American multinational technology company. Traded as. Sunnyvale, California. Operating income. Net income. Main article: List of acquisitions by Juniper Networks. December 31, Retrieved April 30, December 8, Retrieved March 20, Network World.

Retrieved April 20, The Economist. September 1, Fresh Meat? Some analysts compare this networking newcomer to Cisco eight years ago". Fortune Magazine. Retrieved December 11, James Press. Financial Times. Electronic News. Electronic Engineering Times. Los Angeles Times. Retrieved November 19, San Francisco Chronicle. Retrieved February 4, Retrieved December 5, Wall Street Journal. The San Jose Mercury News.

Retrieved December 8, Electronic Engineering Times Korea. The Independent. April 22, The Wall Street Journal. Retrieved May 3, Retrieved December 15, Silicon Valley Business Journal.

July 4, Retrieved December 12, The Street. November 22, Archived from the original on December 5, Juniper's Junos". Retrieved December 22, Retrieved January 10, December 1, The Ottawa Citizen. June 30, Pavlichek Addison-Wesley Professional. ISBN Business 2. Associated Press. June 9, Retrieved December 3, Retrieved December 23, Retrieved May 4, Retrieved February 6, February 11, CNET News.

July 23, Retrieved January 29, Retrieved January 20, Retrieved October 30, Archived from the original on December 11, Retrieved October 31, The New York Times. Retrieved November 11, December 18, Retrieved March 12,

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The account is created and will be pending approval from the Juniper Compliance team. After the account is approved, an email notification will be sent with a security key with which you need to establish a password for your new account. Note that the security key expires in 3 days. Contact Customer Care with the following information of the user that needs an account:. In Step 1 of the tool, there are six radio button options to select, what is the difference between them?

Use an Authorization Code: If an authorization code has been provided by Juniper or your company, then you may enter it. This will ensure your login is linked to the existing company profile and will also provide the same access rights and privileges as your colleagues who are linked to the profile. Note that only some companies have a profile or company Authorization Code setup in the database.

This may be any product Serial Number, either software or hardware, which has been purchased and is owned by your company. This will provide you with limited access to the Customer Support Center and Case Manager, based on the criteria outlined by your cloud provider. All accounts are subject to export compliance screening. Guest User Access : Select this option in order to create a Guest user account. Your access will be restricted only to documentation, Elevate community forums, and Juniper Learning Portal.

User Registration - Login assistance for additional documentation. Contact Support for Customer Care phone numbers. Support and then select JDA our digital assistant chatbot. Updated the screenshots as well to current standards. You might just need to refresh it. Skip to Main Content. Home Knowledge Quick Links. Expand search. Search Loading. Log in. Knowledge Base Back. Created Last Updated Print Report a Security Vulnerability. Description This article provides instructions for creating a new user login account to access Juniper Networks Support tools.

Symptoms I need access to the Juniper Networks tools and resources as a support customer. I want access to exclusive information and resources on the Juniper Networks Support site. An email will be sent to you to confirm your email address is valid and will provide you the link to continue with the below steps: Complete the "Account Setup" items.

Note: If you enter a public domain email address, such as gmail. You can click Next only after you change the public domain email address. Click Next to continue. Then open the file, copy its contents, and paste them into the Certificate box on the J-Web Secure Access Configuration page. When generating the certificate, you must specify the subject, e-mail address, and either domain-name or ip-address.

You can delete a self-signed certificate that is automatically or manually generated from the EX Series switch. When you delete the automatically generated self-signed certificate, the switch generates a new self-signed certificate and stores it in the file system. To delete the automatically generated certificate and its associated key pair from the switch:.

To delete a manually generated certificate and its associated key pair from the switch:. To delete all manually generated certificates and their associated key pairs from the switch:. When you initialize a Juniper Networks EX Series Ethernet Switch with the factory default configuration, the switch generates a self-signed certificate, allowing secure access to the switch through the Secure Sockets Layer SSL protocol. Self-signed certificates do not provide additional security as do those generated by Certificate Authorities CAs.

This is because a client cannot verify that the server he or she has connected to is the one advertised in the certificate. In this case, the creator of the certificate is the switch. After the switch is initialized, it checks for the presence of an automatically generated self-signed certificate.

If it does not find one, the switch generates one and saves it in the file system. A self-signed certificate that is automatically generated by the switch is similar to an SSH host key.

It is stored in the file system, not as part of the configuration. It persists when the switch is rebooted, and it is preserved when a request system snapshot command is issued. The switch uses the following distinguished name for the automatically generated certificate:. If you delete the system-generated self-signed certificate on the switch, the switch generates a self-signed certificate automatically.

In this case, you create the self-signed certificate for the switch. At any time, you can use the CLI to generate a self-signed certificate. Manually generated self-signed certificates are stored in the file system, not as part of the configuration. Self-signed certificates are valid for five years from the time they are generated. When the validity of an automatically generated self-signed certificate expires, you can delete it from the switch so that the switch generates a new self-signed certificate.

System-generated self-signed certificates and manually generated self-signed certificates can coexist on the switch. EX Series switches allow you to generate custom self-signed certificates and store them in the file system. The certificate you generate manually can coexist with the automatically generated self-signed certificate on the switch.

To enable secure access to the switch over SSL, you can use either the system-generated self-signed certificate or a certificate you have generated manually. A digital certificate has an associated cryptographic key pair that is used to sign the certificate digitally.

The cryptographic key pair comprises a public key and a private key. When you generate a self-signed certificate, you must provide a public-private key pair that can be used to sign the self-signed certificate.

Therefore, you must generate a public-private key pair before you can generate a self-signed certificate. Optionally, you can specify the encryption algorithm and the size of the encryption key. If you do not specify the encryption algorithm and encryption key size, default values are used. The default encryption algorithm is RSA, and the default encryption key size is bits.

To generate the self-signed certificate manually, include the certificate ID name, the subject of the distinguished name DN , the domain name, the IP address of the switch, and the e-mail address of the certificate holder:. To verify that the certificate was generated and loaded properly, enter the show security pki local-certificate operational command.

No special configuration beyond device initialization is required before configuring this feature.