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A tag for questions involving Juniper Networks Operating System (Junos) software.

5 votes
1 answer
2k views

How do you alias a command in JunOS?

I was searching for an easy way to do this over the last few days and found that there wasn't a SIMPLE way to do this. The majority of the answers were: Too complex for the problem at hand. Difficu …
Jordan Head's user avatar
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5 votes
Accepted

How do you alias a command in JunOS?

I was working with a customer who was implementing OAM in JunOS, the show commands to display statistics are unwieldy. They wanted a way not to have to type the full command everytime they needed to …
Jordan Head's user avatar
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1 vote
Accepted

How to view a privilege level attached to a command in Junos?

The closest thing to what you want would be show cli authorization. You won't be able to get down to the individual command level unless you specify them yourself with things like allow-commands, den …
Jordan Head's user avatar
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2 votes

How does JunOS device boot up ? Juniper JunOS Boot Process

Inside a junOS device where is the image store path/.tgz , so that I can copy from one to another ?(example in a vc - i can copy from master to Line card) You as the operator decide where the instal …
Jordan Head's user avatar
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5 votes
Accepted

Junos not automatically advertising an address configured on loopback interface to OSPF

Yes, this changed back in Junos 8.5. You must now explicitly configure lo0.0 (ideally as a passive interface) to advertise the network.
Jordan Head's user avatar
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5 votes
Accepted

Junos "request system software validate" safety

This is one of those things that is a grey area and a bit of a personal preference. Generally speaking, it is safe, yes. However this command performs the same validation function that request syste …
Jordan Head's user avatar
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1 vote

Junos AS-PATH regex

So, correct me if I'm wrong in interpreting your question, or if it doesn't make sense - I'll be happy to update my answer. You want to match on, your neighbor (AS20) whether AS20 does prepending or …
Jordan Head's user avatar
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1 vote
Accepted

What is the differenence between set firewall filter and set firewall family

I know the second one is specific to net traffic, but other than that is there any difference between the two? No. jhead@R1# set firewall ? Possible completions: > filter Define …
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3 votes
Accepted

Juniper SRX - interface filters vs firewall rules?

You are correct, these are not the same thing. "Interface Filters" / Firewall Filters The show interfaces filters command is used to show what firewall filters are applied to each interface, and in …
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4 votes
Accepted

SIP alg on juniper SRX100H2

First, ALGs are technically independent entities. If we are looking at JUST the ALG, it cares only about the SIP signaling packets, not which ports are used. You define the ports by application an …
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4 votes
Accepted

Where the `term` and `policer` would appear?

Both term and policer can be placed in a multiple sections of the configuration. Policers Policers are defined like this, obviously you can change it to your needs: {master}[edit firewall] policer …
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2 votes

mp_reach_nlri bgp Update with 4-byte Community ASN?

Your issue has nothing to do with how Juniper supports 4-byte ASNs or extended communities. The rejected due to the lack of a valid target community log messages is simply telling you that you don't …
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1 vote
Accepted

what's the differences of two `filter` under `edit firewall` in junos?

I'll replace the variables with some example variables for this just to make it clearer. The short version is that set firewall filter EXAMPLE-FILTER is an artifact in Junos, it still works but genera …
Jordan Head's user avatar
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8 votes
Accepted

Is it possible to set idle-timeout for the Junos root user?

UPDATE: As of 16.1 this is possible with the following configuration: set system login idle-timeout n Where n is the number of minutes. https://www.juniper.net/documentation/us/en/software/junos/netwo …
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1 vote
Accepted

Can I delete the /var/rundb/private directory?

First a quick note (even though it might not be terribly relevant for you) /var/rundb/private and /var/run/db/private are symlinked. I digress, /var/run/db/private is a directory used to manage config …
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