Wednesday, February 20, 2019

How to increase firewall/VPN skills?

Hello All,

As the title suggests what's the best route to accomplish this? I Currently have my CCNA and working as a sys admin but don't get to touch the networking gear. My career goal is to become a network engineer, I am going to pursue my CCNP:RS, but wanted to get an idea of how firewalls and VPNs work as i believe this is a great skill to have since VPNs are everywhere.

CCNA did touch up on these but i still don't feel knowledgeable about them. Since i have my CCNA, should i maybe branch off before diving into CCNP with lets say a Palo alto cert or something like that? I def want to learn this technology but also want have something for the resume.

Look forward to hearing your suggestions!

Thank you!!



Cogent can’t support more than a 7Gbps flow from AWS on a 10G interface.

Cogent is something else today. They called one of my NOC guys to say “Uh, hey, we need you to send less traffic over your port. We can’t handle 7Gbps on that 10G port you have. It is causing issues with peering for us.”

My response ...

Seriously? Your capacity management or lack thereof is not my problem. But thank you for letting me know that our port is artificially capped at less than the speed we are paying for so I can submit for a service credit.



DHCP client tool

I want to allocate myself four IP addresses from a DHCP pool. I am looking for a tool or script that runs on Linux, makes DHCP requests that look as if they came from four different devices, and reports what IP addresses were allocated. After this, I run the tool every <n> hours to renew the lease.

I realize that the correct way to do this is to talk to the admin, ask them to give me four addresses and then remove these addresses from the DHCP pool. This is going to be hard if not impossible.

Also I don't have real devices that can make DHCP requests. These four addresses will be assigned to any of several VMs on a need basis ("floating IPs" in OpenStack parlance).

Any tool recommendations?



Might have been better to post here so x-posting! - Managing devices behind roaming Cell/LTE connections.

https://ift.tt/2TZ7Tql

Please advice - Cisco AIR-1815W vs Ruckus 901-H320

Hello guys!

I'm having a specific situation, there is a need to order around 900 devices, for 900 rooms.

We decided because of many factors to go with access point in each room. I have an professional IT company recommending me Cisco AIR-1815W, and I have a arhitecture company offer me Ruckus 901-H320.

Difference between these two products is around 45.000,00$ (Cisco more expensive)

Is it really Ruckus comparable with Cisco?

Personally I would go with Cisco because I've been working with it a lo. But I always like to hear what others think.

​

Thanks!



How do I redirect traffic from urlA to urlB?

I have a proxy setup and I can redirect HTTP traffic as desired but I can't seem to do it with HTTPS requests. Any ideas? Suggestions?



Weird question... looking for large count fiber for a project

Hey guys and gals,

Former telco lady here. I'm feeling crafty, and wanted a piece of large count fiber to make something with. It turns out, that's not exactly easy to procure. I did find an unverified piece of trans-atlantic cable that Tiffany's sold in the 1900's, but I don't want to fuck up a piece of history like that. Does anyone know or have a slice of a large fiber bundle OR cable (like undersea)? I enjoy repurposing tech trash into pretty things! Not trying to sell this shit after I make it, either, so please don't think I'm trying to make money off this.

Thanks, and make sure you have a glass of bourbon at the end of your day!



DNS query for a period

Has anyone every seen a DNS query for just a period?

I'm trying to figure out if the way my logs are being collected is causing this to show a DNS query as soon period or if there's hosts querying for a period.

I found one article on like SANs indicating that it may be dos activity that is related to a Porn site but nothing else.

Any help would be great.

P.s. the log only shows a period, not a fqdn then a period at the end. Which I personally think the log is possibly showing me the period at the end that's being stripped into a new log.



Port forwarding without static IP?

2 pieces of hardware

- PC

- 4G LTE Modem

​

I have several PCs across the country and I'm connected to them through a 4G LTE modem and the PCs are getting a private IP from that modem. As of now, I can access each PC remotely through port forwarding on the static address of the modem. These PCs since ever I started working for my company have always ran off of DHCP and never had static IPs. We are in a transition phase where we are switching modem providers and they can't seem to grasp how our existing modems were set up to do port forwarding our PCs since they are on DHCP and the IP may change at any point. I spoke with our existing provider and they advised that they have it set up so that when I SSH 123.123.123.213(modem's public IP) on port 122, modem searches for 192.168.1.2 listening on port 22 and if no device has that, try searching for 192.168.1.3 listening on port 22, and if that doesn't work try searching for 192.168.1.4 listening on port 22, etc. They were beating around the bush to explain how they configured their modems to run like that. Does anyone know what type of port forwarding set up I need to tell our new provider in order for me to be able to access my machines? I'm seriously trying to avoid having to set private static IPs on hundreds of PCs if I can help it

​

​



Not sure where to post this

I recently acquired a Dell Axium 30, and was wondering if it was possible to set it up to modern WiFi

​

BTW it is the mid range model so I think it has built-in WiFi