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problem with IPSec VPN for iOS clients
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IT & Programming > Networking & Security

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Job Description

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  • Posted: Sun, Mar 16, 2014
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Hourly Rate: Not Sure
  • Hrs/wk: Not Sure | Duration: Not Sure
  • Work View™ Payment Protection
  • W9 Not Required
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As a VPN provider for iOS clients, we are using Strongswan to provide IPSec On Demand VPN solution.

There is a situation we can not handle. With more than ~30 simultaneous connection requests, no one can connect to the server and nearly all connections receive no response, causing a time out error at the client side.
Below you can find a detailed description:

Server spec:
Dedicated Xeon E3-1230 3.2GHz (8 Cores) with 8 GB Ram

$ ipsec --version
Linux strongSwan U5.1.0/K3.2.0-59-generic

Here it is a situation in which no one can connect to server:

$ ipsec statusall | head -n 50
Status of IKE charon daemon (strongSwan 5.1.0, Linux 3.2.0-59-generic, x86_64):
uptime: 15 hours, since Mar 15 08:59:19 2014
malloc: sbrk 397312, mmap 0, used 296144, free 101168
worker threads: 1 of 24 idle, 6/5/12/0 working, job queue: 0/18/157/0, scheduled: 1545
loaded plugins: charon aes des rc2 sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey ssh...

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Desired Skills
VPN, ipsec, strongswan
Job ID: 54382148
Hourly Rate: Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

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