#linux-networking

Resolved: Serving 10,000 simultaneous users over Wifi #dev #answer #development

Serving 10,000 simultaneous users over Wifi

I’m looking to offer a wifi service at a public event. The traffic will be very minimal, 10KBps should be adequate. Users don’t necessarily need to connect to anything other than the private intranet.

Assume that all 10k users will be using the network at the same time, where would I start looking for a solution for this?

Answer [by MDMarra]: Serving…

How-to: Linux e1000e (Intel networking driver) problem with resume and pcie=off #it #dev #programming

Linux e1000e (Intel networking driver) problem with resume and pcie=off

This question is a continuation of this one.

I’ve been having a ton of problems with my Ethernet chipset and e1000e driver:

02:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller

Apparently, it doesn’t work at all without pcie=off, and even with the option it doesn’t work after I resume from a…

Fixed: arp-requests cannot be seen by specific nodes #programming #development #it

arp-requests cannot be seen by specific nodes

I create an open ad-hoc wlan by using iwconfig (I have the same issue with wpa_supplicant as well). there are 4 nodes on the network as seen on the figure below. The nodes run ubuntu 12.04 and debian squeeze, and have 3.7.1, 3.5 and 3.2 kernels. I use two different usb dongle brands (TP link and ZCN) that all have AR9271 chipset and ath9k_htcdriver…

Solution: Should /etc/hosts contain an entry like '127.0.0.1 localhost myhost.example.org myhost'? #solution #dev #computers

Should /etc/hosts contain an entry like ‘127.0.0.1 localhost myhost.example.org myhost’?

When looking at a variety of Linux and FreeBSD systems, I’ve noticed that on some systems /etc/hosts contains an entry for the public hostname of the host, but not on other systemst.

What is the best practice here? Should my /etc/hosts file contain an entry for the hosts FQDN (e.g. myhost.example.org) and…

Fix: Can I have dots in a hostname? #it #solution #programming

Can I have dots in a hostname?

I’m using names like a.alpha for the hostname of my linux box, but it seams that these name are not completely usable. The response of a hostname shell command is correct (a.alpha). But the name printed after my user account is “user@a” instead of “[email protected]”. When I use avahi, I can reach (by hostname) a.alpha, but not b.alpha. Is that normal?

Answer [by Choppe…

Solution: Layer 4 vs Layer 7 Load Balancing #dev #development #it

Layer 4 vs Layer 7 Load Balancing

I am trying to decide between using a layer 4 load balancing solution for my datacenter or a layer 7 solution. Unfortunately (for my sanity, that is), my use case is simple enough that both solutions would work well, avoiding most of the weaknesses and not really utilizing the strengths on the other. Whatever solution we end up using, it has to have high…

How-to: PXE Booting Virtualbox guests in internal networking mode? #fix #dev #answer

PXE Booting Virtualbox guests in internal networking mode?

I am not sure if this is just specific to my distro’s packages or is a vbox limitation. So, any help would be appreciated.

Ok, so I have a network of VMs, with one VM acting as a NAT for the other VMs in the “internal” network. One of those VMs is running a DHCP & TFTP server, and I just need to boot other VMs off of this server, but all…