|
|
Sponsored Content
Homework and Emergencies
Emergency UNIX and Linux Support
VPN performance problem
Post 302376043 by Corona688 on Monday 30th of November 2009 12:09:54 PM
11-30-2009
VPN performance problem
This is a weird problem I've been butting my head against for days now...
I have two OpenVPN servers set up with identical configurations except for the keys. One of them is hosted in a datacenter with a large backbone, the other is hosted on my home server's limited residential internet. One of them delivers consistent topped-out performance(100 kilobytes per second) even while under network load, the other delivers at best 30 kilobytes per second when load-free. Care to guess which one is which?
You'd guess I'd get better performance on the VPS, right? Wrong! My anemic home server gets better performance and throughput than my hosting provider. This is made doubly odd by the fact that throughput to my hosting provider seems fine in any other way I've thought to test. CPU load, I/O load, network load, all of those look minimal.
They're running nearly identical systems, with the same OS(Gentoo Linux) and very similar versions of OpenVPN -- indeed, their specific support for Gentoo and OpenVPN both are reasons this provider was picked. No firewalls or bandwidth throttling is involved yet. The latency to both hosts is nearly identical(i.e. terrible
But my client's behind a sat connection, so it's to be expected ) I'm nearly out of ideas. Is it time to fire my hosting provider? Any suggestions for alternatives?
I have two OpenVPN servers set up with identical configurations except for the keys. One of them is hosted in a datacenter with a large backbone, the other is hosted on my home server's limited residential internet. One of them delivers consistent topped-out performance(100 kilobytes per second) even while under network load, the other delivers at best 30 kilobytes per second when load-free. Care to guess which one is which?
You'd guess I'd get better performance on the VPS, right? Wrong! My anemic home server gets better performance and throughput than my hosting provider. This is made doubly odd by the fact that throughput to my hosting provider seems fine in any other way I've thought to test. CPU load, I/O load, network load, all of those look minimal.
They're running nearly identical systems, with the same OS(Gentoo Linux) and very similar versions of OpenVPN -- indeed, their specific support for Gentoo and OpenVPN both are reasons this provider was picked. No firewalls or bandwidth throttling is involved yet. The latency to both hosts is nearly identical(i.e. terrible
But my client's behind a sat connection, so it's to be expected ) I'm nearly out of ideas. Is it time to fire my hosting provider? Any suggestions for alternatives?Last edited by Corona688; 11-30-2009 at 01:16 PM..
|
|
8 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hello,
I have a mail server (sendmail) with SUNOS 5.5.1. Just recently it began to respond very slowly.
I used vmstat to check the performance data. Only interupt, system call and CPU context swiching are relatively high. Other statistics are normal, especially CPU utilization are very... (5 Replies)
Discussion started by: caoai
5 Replies
2. Solaris
Hi All,
There is a virtual user "ecoouk" which logs on to the server and runs some scripts. I want to know how much server performance can I gain if I put off all the scripts run by this user.
Please tell me how to analyse how much resources a specific user is using.
Regards,
Abhishek (3 Replies)
Discussion started by: max29583
3 Replies
3. Linux
Trying to connect to my companies VPN with vpnc but I keep getting an error that the target failed to respond. I run wireshark and see that my host sends out a few ISAKMP packets but gets no response and gives up.
Any ideas what can cause this to happen? Is there someway that UDP traffic could... (0 Replies)
Discussion started by: osulinux
0 Replies
4. UNIX for Dummies Questions & Answers
I have a Teradata Machine, using MP-RAS Unix, with a 1000 Intel Ethernet card and a Cisco switch.
If I configure the ethernet card and the switch to auto, so they negotiate to 1000, or configure the ethernet card and switch manually to 1000Full or 100Full, the velocity is very very low.
Only... (2 Replies)
Discussion started by: cuatrodos
2 Replies
5. UNIX for Dummies Questions & Answers
Hi Gurus of UNIX, I have a problem when I try to install a software VPN Cisco in Laptop (HP530).
I do the following procedures:
Part 2 - VPN Client Compilation
We will now set up the vpn client. As there is no official Cisco VPN Client for OpenSolaris X86 available, we will use vpnc.... (1 Reply)
Discussion started by: andresguillen
1 Replies
6. UNIX for Advanced & Expert Users
Working on a simple, half duplex network diagnostic that will run anywhere using nc and dd. Performance is symmetrical with sink and source nc processes open as a server:
nc -vkl 5000 > /dev/null &
cat /dev/zero | nc -vkl 5001 &
With this on the client:
nc host0 5001 | dd of=/dev/null... (0 Replies)
Discussion started by: netdrx
0 Replies
7. Cybersecurity
Hey everyone. I have a problem, but it may be my lack of understanding that is the cause. Ok so I attend a technical school, and needless to say there's a lot of wannabe hackers, pranksters and what not.
So from my laptop I'd like to connect to the wireless AP's around campus, but security is a... (1 Reply)
Discussion started by: Lost in Cyberia
1 Replies
8. Shell Programming and Scripting
Hi,
I am Shell script beginner.
I wrote a shell programming that will take each line of a file1 and search for it in another file2 and give me the output of the lines that do not exist in the file2.
I wrote it using do while nested loop but the problem here is its running for ever . Is there... (12 Replies)
Discussion started by: sakthisivi
12 Replies
LEARN ABOUT DEBIAN
eurephiadm-lastlog
eurephiadm lastlog(7) eurephiadm lastlog(7) NAME
eurephiadm-lastlog - View the eurephia lastlog SYNOPSIS
eurephiadm lastlog [-v|--verbose] [-S|--sortkeys <sort keys>] [<FILTER arguments>] DESCRIPTION
This command will query the lastlog records, which contains information about all logins done with the eurephia-auth plug-in. OPTIONS
-S | --sortkeys <sort key>[,<sort key>[,<sort key>]...] Sorting order of the report. More sort keys can be given, separated by comma. The available sort keys are: uid : User ID certid : Certificate ID ip : IP address where the client connects from vpnip : Assigned IP address on the VPN client status : eurephia connection status login : When the client logged in logout : When the client logged out username : eurephia username macaddr : MAC address of the TUN/TAP interface on the VPN client uicid : User ID/Certificate ID link ID. Related to the IDs provided by eurephiadm usercerts -v | --verbose View detailed lastlog FILTERS
The filters can help reducing the amount of data being reported. Multiple filters may be added, but they will only work as additional "AND" arguments in the query. -c | --certid <Certificate ID> Certificate ID -i | --uid <User ID> Numeric user ID -u | --username <User name> User name -I | --ip-addr <IP address> IP address of remote host -s | --login <YYYY-MM-DD> Login time -e | --logout <YYYY-MM-DD> Logout time -m | --mac-addr <TUN/TAP MAC address> MAC address of remote VPN interface of the client -a | --uicid <Access ID> User ID/Certificate ID link ID. Related to the IDs provided by eurephiadm usercerts SEE ALSO
eurephiadm(7), eurephiadm-certs(7), eurephiadm-users(7), eurephiadm-usercerts(7) AUTHOR
Copyright (C) 2008-2010 David Sommerseth <dazo@users.sourceforge.net> David Sommerseth July 2010 eurephiadm lastlog(7)