1 thing that I can do is to host another server and see if I can use more than
13.5mbps and without affecting the current server. Lot determine it is a
configuration problem or the network problem.
Sent from my iPhone
> On 26 Nov, 2013, at 6:03 pm, "arnold lam" <[email protected]> wrote:
>
> How do I bypass the firewall completely? As it is a hardware firewall.
>
> Date: Tue, 26 Nov 2013 10:08:53 +0100
> From: [email protected]
> To: [email protected]
> Subject: Re: [Csgo_servers] Huge loss problem
>
> Could be # concurrent connections or who knows what else.
>
> Try to connect directly bypassing the firewall eventually if you have no clue
> about fw specs / rulesets in use
>
> Marco Padovan
> Chief Technical Officer
> http://www.hiperz.com
>
>
> On Tue, Nov 26, 2013 at 8:46 AM, arnold lam <[email protected]> wrote:
> So there is a firewall in between. But it shouldn't slow traffic down because
> if there is incoming DDOS, it will Blackhole/null route the ip. Basically it
> won't reach my server. Therefore it is still a bandwidth issue.
>
> I want to know what is restricting the bandwidth. I can download upload files
> at a high speed. 1 gig download 100mbps upload. But srcds can only use
> 13.5mbps. Basically everyone has the same amount lag no matter they are
> overseas or locally.
>
> Sent from my iPhone
>
> On 26 Nov, 2013, at 6:19 am, "ritual" <[email protected]> wrote:
>
> To be honest it's a bit of a cop-out answer as most script-kiddie DDOS
> attacks are from UDP SYN Flooding which are can be stopped by hardware
> firewalls. If it was a firewall issue, there would be more than one system
> affected and therefore more people complaining. I think we've narrowed down
> the problem here to limited bandwidth and that it is now up to his vendor to
> see if it is possible for them to provide more. Lowering tick and limiting
> players are all temporary fixes to the over-arching problem.
>
> Good luck with the vendor.
>
>
>
>
>
> On Mon, Nov 25, 2013 at 12:01 PM, Marco Padovan <[email protected]> wrote:
> Maybe then the issue relies on the hardware firewall.
>
> Post the specs and rulesets in use
>
> Marco Padovan
> Chief Technical Officer
> http://www.hiperz.com
>
>
> On Mon, Nov 25, 2013 at 4:29 PM, arnold lam <[email protected]> wrote:
> It has hardware firewall, that's why ip tables is not needed. Btw basically
> I'm the system administrator, they can't do much.
>
> Sent from my iPhone
>
> On 25 Nov, 2013, at 11:17 pm, "Marco Padovan" <[email protected]> wrote:
>
> You are running without any firewall rule?!? O.o
>
> To me that is not good, nor normal.
>
> Ask your system administrator to setup a proper firewall ruleset and then to
> debug your performance issues, probably it's just something not
> setup/properly setup
>
> Marco Padovan
> Chief Technical Officer
> http://www.hiperz.com
>
>
> On Mon, Nov 25, 2013 at 2:33 PM, arnold lam <[email protected]> wrote:
> iptables:
> root@arnold:~# iptables -L
> Chain INPUT (policy ACCEPT)
> target prot opt source destination
>
> Chain FORWARD (policy ACCEPT)
> target prot opt source destination
>
> Chain OUTPUT (policy ACCEPT)
> target prot opt source destination
>
> cat /proc/net/udp
>
>
> sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt
> uid timeout inode ref pointer drops
> 816: 00000000:6915 00000000:0000 07 00000000:00000000 00:00000000 00000000
> 1000 0 27068500 2 ffff880213985080 0
> 920: 00000000:697D 00000000:0000 07 00000000:00000000 00:00000000 00000000
> 1000 0 27068478 2 ffff880213982300 0
> 930: 00000000:6987 00000000:0000 07 00000000:00001680 00:00000000 00000000
> 1000 0 27068477 2 ffff880213980380 615
> 951: 00000000:699C 00000000:0000 07 00000000:00000000 00:00000000 00000000
> 1000 0 27068499 2 ffff880213983100 0
> 2640: 0100007F:0035 00000000:0000 07 00000000:00000000 00:00000000 00000000
> 0 0 13057 2 ffff880212031180 0
>
>
>
>
> Is this normal?
>
>
>
>
> Date: Mon, 25 Nov 2013 10:19:03 -0200
> From: [email protected]
>
> To: [email protected]
> Subject: Re: [Csgo_servers] Huge loss problem
>
> Maybe it's just a firewall limiting the number of packages per seconds, very
> common solution to block DDOS.
>
> You can check the status of udp sockets throgth this command: cat
> /proc/net/udp
>
> Then convert the local_address column to int(hex->int) match your server
> port, if you are using the default config(port 27015), will be something like
> this: XXXXXXXXX:6987. Then check the drops column in the same line.
>
> If is low(less than 2000 running at least 1 hour, with players), probably
> isn't a server problem, maybe a firewall, ddos protecion false positive, etc.
> If is too high, you have a problem in your dedicated server configuration.
> Check your firewall rules( sudo iptables -L).
>
>
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