Re: [j-nsp] polishing an antique m7i

2022-07-07 Thread Randy Bush via juniper-nsp
>> - old m7i with RE-B-1800X1-4G-S
>> - currently running 14.2R7.5
>> - hard disk dying
>> - have nice new 1tb sata ssd for it
>> - juniper support download is pushing 15.1R7.9 at me
>> - should i worry about increased memory use or license changes in 15?
>> - if so, where the heck is 14?
> 
> If 14 is missing from the repository, then it's probably because it is
> EoL.

so is the m7i :)

> I can't find 14 for even the MX, so chances are Juniper stopped
> maintaining it a while ago. I recall debuting 14 into our network back
> in 2014, and it had tons of problems. I'd be surprised if Juniper are
> still actively supporting it.

i am not expecting active support of 14 or the m7i.  i am expecting an
archive of historical releases just as application softwares have.

> For the M7i, chances are your memory footprint will bulge with 15

exactly my fear.  it was running 14 successfully as the disk drive
failed.  i want to run 14 when the new drive is installed (in the next
day or two).  this seems a reasonable desire.

>> - and with the support portal rearrangement, i can not find
>>destructions for making a bootable usb stick from
>>install-media-15.1R7.dms (on a mac or an rPi, of course:) 

`dd in=Desktop/ISOs/install-media-15.1R7.dms of=/dev/disk6 bs=1m`
resulted in

ryuu.rg.net:/Users/randy> sudo fdisk /dev/disk6
Password:
Disk: /dev/disk6geometry: 979/255/63 [15728640 sectors]
Signature: 0xAA55
 Starting   Ending
 #: id  cyl  hd sec -  cyl  hd sec [ start -   size]

 1: 04  880   0   1 -  879   0   1 [   1893232 -  20480] DOS FAT-16  
*2: A5  680   0   1 -  879   0   1 [   680 -1892552] FreeBSD 
 3: 000   0   0 -0   0   0 [ 0 -  0] unused  
 4: 000   0   0 -0   0   0 [ 0 -  0] unused  

which is somewhat reassuring, though the start/size of #1 is a bit odd

randy
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Re: [j-nsp] polishing an antique m7i

2022-07-07 Thread Mark Tinka via juniper-nsp




On 7/2/22 20:00, Randy Bush via juniper-nsp wrote:

- old m7i with RE-B-1800X1-4G-S
- currently running 14.2R7.5
- hard disk dying
- have nice new 1tb sata ssd for it
- juniper support download is pushing 15.1R7.9 at me
- should i worry about increased memory use or license changes in 15?
- if so, where the heck is 14?


If 14 is missing from the repository, then it's probably because it is 
EoL. I can't find 14 for even the MX, so chances are Juniper stopped 
maintaining it a while ago. I recall debuting 14 into our network back 
in 2014, and it had tons of problems. I'd be surprised if Juniper are 
still actively supporting it.


For the M7i, chances are your memory footprint will bulge with 15, but 
likely not as much as if you went to higher code (which the M7i doesn't 
support - it tops out at 15.1).


I'd be keen to hear if you can get the SSD drive to boot, though.



- and with the support portal rearrangement, i can not find destructions
   for making a bootable usb stick from install-media-15.1R7.dms (on a
   mac or an rPi, of course:) 


This is dated, but might offer some help:

http://networkarch.blogspot.com/2013/02/building-bootable-juniper-usb-stick-on.html

Mark.
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Re: [j-nsp] SRTBH

2022-07-07 Thread Jeff Haas via juniper-nsp
In circumstances where the routing table can help you mitigate an attack, 
including things that use uRPF, it'll usually scale significantly better that 
flowspec.  This is primarily because flowspec is just a distributed way of 
programming the firewall, and firewalls on transit routers have many dimensions 
where they don't scale nicely.

That said, the firewall on many of our platforms for "block these sources" 
should scale nicely ... but doesn't in flowspec if you have rules that 
interleave.  The interleaving rules interfere with firewall optimization.

The issue above motivates the flowspec v2 work happening in IETF, particularly 
the user-ordered rules.

-- Jeff


On 7/7/22, 10:02 AM, "juniper-nsp on behalf of Gert Doering via juniper-nsp" 
 
wrote:

[External Email. Be cautious of content]


Hi,

On Thu, Jul 07, 2022 at 08:41:56AM -0400, harbor235 via juniper-nsp wrote:
> Since Flowspec arrived, are there any uses for SRTBH?

Scaling?

My understanding of flowspec is that it is typically implemented by
programming ACL TCAM, while SRTBH is routing table lookup, so
"some 10.000 lines" vs. "2-4 million".

OTOH, SRTBH is all-or-nothing, not "only port 80"...

gert
--
"If was one thing all people took for granted, was conviction that if you
 feed honest figures into a computer, honest figures come out. Never doubted
 it myself till I met a computer with a sense of humor."
 Robert A. Heinlein, The Moon is a Harsh 
Mistress

Gert Doering - Munich, Germany 
g...@greenie.muc.de


Juniper Business Use Only
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Re: [j-nsp] SRTBH

2022-07-07 Thread Gert Doering via juniper-nsp
Hi,

On Thu, Jul 07, 2022 at 08:41:56AM -0400, harbor235 via juniper-nsp wrote:
> Since Flowspec arrived, are there any uses for SRTBH?

Scaling?

My understanding of flowspec is that it is typically implemented by
programming ACL TCAM, while SRTBH is routing table lookup, so 
"some 10.000 lines" vs. "2-4 million".

OTOH, SRTBH is all-or-nothing, not "only port 80"...

gert
-- 
"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
 Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany g...@greenie.muc.de


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[j-nsp] SRTBH

2022-07-07 Thread harbor235 via juniper-nsp
Since Flowspec arrived, are there any uses for SRTBH?

Anyone using TrinityCyber, them use a different approach to IDS and is not
strictly signature based but more TTPs? Write up appear to be good, curious
if anyone is using their products?


Mike
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