similar to: udp question

I get these errors from the following settings in /etc/sysctl.conf file: # Custom Settings: net.ipv4.tcp_max_syn_backlog=2048 net.ipv4.tcp_fin_timeout=30 net.ipv4.tcp_keepalive_intvl=10 net.ipv4.tcp_keepalive_probes=7 net.ipv4.tcp_keepalive_time=1800 net.ipv4.tcp_max_tw_buckets=360000 net.ipv4.tcp_synack_retries=3 net.ipv4.tcp_rmem="4096 87380 16777216" net.ipv4.tcp_wmem="4096

I have a beefy machine (Intel dual-quad core, 16GB memory 2 x GigE) I have loaded RHEL5.1-xen on the hardware and have created two logical systems: 4 cpus, 7.5 GB memory 1 x Gige Following RHEL guidelines, I have it set up so that eth0->xenbr0 and eth1->xenbr1 Each of the two RHEL5.1 guests uses one of the interfaces and this is verified at the switch by seeing the unique MAC addresses.

OS: CentOS 5.0 x86. Hi, I am using CentOS 5.0 at home, ADSL ~16 Mbps/~1 Mbps Internet connection and my ping time to my ISP is 160-170 msec. When downloading something with Firefox, I am getting download speeds of about 100-180 KB/sec (for example when downloading SP2 of XP from MS server). Are the CentOS networking settings OK for this kind of latency, or do I have to change some settings?

Hi I was wondering if you ever got better performance out of your Gigabit/IDE/Fc2? I am facing a similar situation. I am running FC2 with Samba 3.x My problem lies in not that I am limited to 10 MBytes per second sustained. I think it's related to this pdflush and how it's buffers are setup. (I have been doing some research and before 2.6 kernels bdflush was the method that was used and

I've been experiencing some intermittent problems accessing at NetApp server via NFS and automount. I'm running CentOS 5.2 (fully updated) on all my servers and workstations. Usually, everything is working just fine, when suddenly we get the following error: /bin/sh: /home/epd/srcref/swtools/Crontabs/ run_release_requests.sh: Permission denied This is actually an email from

Hello, I have encountered a rather strange issue with memory allocation to the domU. I am trying to run FreeBSD in a HVM, my config file is: [root@xen-srv sandi]# cat /etc/xen/vm/freebsd.cfg builder = "hvm" vcpus = 1 memroy = 2048 disk = [ ''phy:/dev/xen-dom0/freebsd,hda,w'' ] name = "freebsd" #vif = [''bridge=xenbr0,mac=00:16:3e:00:af:d8'']

Hi list (and happy new year), I'm experiencing some troubles using Samba (4.1.17 debian version) over VPN. Basically we've following setup : PC === LAN ===> VPN (WAN) ==== LAN ===> Samba file Server Copying big (say > 1MiB) files from PC to Samba file server almost always ends up with a NT_STATUS_IO_TIMEOUT error (or "a network error occured" if trying to copy from

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=40 laforge@netfilter.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED ------- Additional Comments From laforge@netfilter.org 2003-02-03 16:49 ------- We haven't seen this

Hi folks, I have here a database node running # rpm -qa | grep mysql-server mysql55-mysql-server-5.5.52-1.el6.x86_64 on # virt-what vmware that seems to have a connection problem: # dmesg |grep SYN |tail -5 possible SYN flooding on port 3306. Sending cookies. possible SYN flooding on port 3306. Sending cookies. possible SYN flooding on port 3306. Sending cookies. possible SYN flooding on

Hi, today in yum update show this problem: Segmentation fault Any idea about this problem? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20070914/aaf7cca0/attachment.html>

I've got a pair of identical CentOS 6.7 servers, with SuperMicro X8DTE-F motherboards, these have 2 each Intel 82574L ethernet ports. The eth0 ports are plugged in with 10' runs of brand new cat 5e cable to a Cisco Nexxus 9000 switch (provided by the data center). These servers keep coming up at 100baseT rather than gigE. I've swapped ports and cables with a different server,

Hi there, When Lustre is configured in an environment where there are multiple paths to the same destination of the same length (i.e. two paths, each one hop away), which path(s) will be used for sending and receiving data? I have my cluster configured with two OSTs with two GigE NICs in each. I am seeing identical performance metrics when I use LACP to aggregate, and when I use two separate

I have four NFS servers running on Dell hardware (PE2900) under CentOS 5.7, x86_64. The number of NFS clients is about 170. A few days ago, one of the four, with no apparent changes, stopped responding to NFS requests for two minutes every half an hour (approx). Let's call this "the hang". It has been doing this for four days now. There are no log messages of any kind pertaining

Currently I'm running CentOS 4.4 on a Dell Poweredge 850 with an Intel Pro/1000 Quad-port adapter. I seem to be able to only achieve 80% utilization on the adapter, while on the same box running Fedora Core 5 I was able to reach 99% utilization. I am using iSCSI Enterprise Target as my application and I am using the nullio feature, it just discards any write and sends back random data for

On Fri, 20 Feb 2015 13:05:56 -0700, Harry McGregor wrote: > For a very basic setup it would work, but I would suggest POE at a > minimum, and vlan support if possible. > > Gigabit uplinks, 10/100 for the poe ports > > http://www.amazon.com/NETGEAR-ProSAFE-M4100-D10-POE-Ethernet-Managed/dp/ B00AUEYX0Y/ref=sr_1_3?ie=UTF8&qid=1424462577&sr=8-3&keywords=netgear+poe

Bryan -- I''m using the puppet augeas plugin at http://git.et.redhat.com/?p=ace.git;a=blob;f=modules/augeas/plugins/puppet/type/augeas.rb;h=2346c37d724d7607ed4e09b0413700bec2b7cbed;hb=HEAD I''m running into a behavior that I wouldn''t expect. I''d like to confirm an entry in sysctl.conf by changing the value if necessary or appending the key/value if it

Yes, I get more than 30MB/s performance. The benchmark I use (NetBench) is essentially CPU bound, such that a faster processor = faster performance. With a very fast hardware config (dual 3.2GHz processors), I've been able to hit around 100MB/s. Changing the RAM or other attributes does not buy me much, it seems that processor power is the bottleneck (at least in my case). When doing your

I have a samba server with 2 ethernet ports, one of which is a gigabit port. When connecting from a windows client that has a crossover to the gigabit port, and a crossover to the 100Meg port: If I connect via \\gige.ethernet.address\foo , and copying a large file, windows reports outbound traffic on the gige port and return traffic on the 100Meg port. Thus, it seems the samba server sees the

Folks, I realize this is off topic, and if anyone can suggest a better source for the question, I'd be glad to go there. Novell SUSE's support is unresponsive, however. My problem is this: I'm running 9.3 Pro on an Intel server board that has two NIC chips built in (a 10/100 and a GigE). I've since added a Netgear GigE NIC. However, every time I reboot, the NICs assigned to

Hi folks :-) situation: debian stable (samba version 2:3.2.5-4lenny9) from clients by ftp the transfer of huge file is about 10/11Mb/s (with an ethernet 10/100) by samba came 5/6Mb/s is it correct? In smb.conf I don't have any "strange"options: thanks Pol domain master = yes preferred master = yes os level = 65 workgroup = WORKGROUP netbios name = name Server String = name