I got a dedicated server ; datacenter told me that I have a 1000 Mbps Public & Private Networks uplink/downlink . How can I check from console if they are saying the true ?
Also , how can I get info about the server network card from console ?
I'm attempting to set up a VPN server on my box using the nifty HowTo posted here: [URL]
My setup is as follows:wifi0 --> Internet; managed entirely via nm-applet (NetworkManager)
Where I'm running into trouble is in the creation of a bridge interface (br0) to bridge future VPN clients to my local network.
The guide(s) say that I need to screw around in /etc/network/interfaces to setup br0 and [eth0/wifi0] accordingly. The problem is that when I specify a configuration of any sort for wifi0 (my only choice for a network uplink), it disables nm and I am unable to configure my wifi in any sort of sane way after reboot... Further info: this "server" doesn't move, and always always connects to the same wifi hotspot that is also nailed in place.
I am trying to limit bandwidth of certain ip addresses on my server. I have been doing hours of reading and not getting very far... So far I believe the iptables command is
ptables -A PREROUTING -s 178.33.23.44 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.45 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.46 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.47 -t mangle -j MARK --set-mark 2
and now I just need the tc command to read those marks and limit bandwidth, I have a gigabit connection and would like to limit each of these ip addresses to 10mbit in and out.
I have just formated and did a fresh install to start all over. I installed Ubuntu 9.1 and everything went fine but the network. The computer serve as a NAS and MediaPlayer. When getting a file from the server, I get a speed of 40-60mb/sec, which are good for a Gigabit network. When I try to put a file in, the speed can't pass more than 1mb/sec and often stop.
Here's the network info:
Code:
vric@XBMC:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:24:8c:a1:eb:55
inet addr:192.168.1.5 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::224:8cff:fea1:eb55/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]...
Edit: Looks like it's a Gigabit Problem. I connected the Ubuntu box to my Linksys router which is 10/100 and everything is MUCH faster.
I have the problems with transfer speed between samba and Windows XP clients.
Samba server configuration:
Quad Core 6600 CPU.
4 Gb RAM
OpenSUSE 11.2 with kernel "2.6.31.12-0.1-desktop"
Samba - samba-3.5.1-1.1.i586
Test: 4 GB File copying. One file.
Transfer speed from Samba Server to Windows 7 and XP clients:
(Windows clients copy file from Server share -> to local drive)
From Server to Windows 7 client 1:
85-90 Mb/sec
From Server to Windows 7 client 2:
90-100 Mb/sec
From Server to XP1 client 3
75-100 Mb/sec
Transfer speed from Windows 7 and XP clients TO Samba Server:
(client copy file from local drive -> to server Share)
From Server to Windows 7 client 1:
12-20 Mb/sec
From Server to Windows 7 client 2:
30-35 Mb/sec
From Server to Windows XP client 1
20-27 Mb/sec
(Copying file from Windows local drive to Windows remote share)
From Window 7 client 1 TO Windows XP client 1
40-50 Mb/sec
From Window 7 client 2 TO Windows XP client 1
50-60 Mb/sec
Copying file from Windows 7 client 2 share -> TO Windows XP client 1 show me 100-120 Mb/sec speed permanent.
Copying file from Linux hosts to NFS server is stable 50-90
Mb/sec bidirectional.
This part of my smb.conf file
Code:
# version at /usr/share/doc/packages/samba/examples/smb.conf.SUSE if the
# samba-doc package is installed.
# Date: 2009-10-27
[global]
log level = 1
debug level = 0
max log size = 50 .....
I have very slow write speed when copying file from Windows clients to Samba Share. Samba speed is slower than Windows native clients connections ?
I am just checking in I know a lil about linux looking to learn more I know forums are the best way to go. I recently installed centos 5.3 on a machine we are going to be using as a squid server. Just a couple quick ?s and just wanted to pick your alls brains. What I am trying to do with the server is use it for caching to speed up our network t but I don't want to go around to all the our customers to setup their browser for proxy. What all is involved with making this server completely transparent. So the end user will does not need to enter in proxy information.
View 3 Replies View RelatedThere is a tool appeared in repository called ktune; The purpose is to adjust some sysctl.conf settings to improve server speed on servers with heavy load. What is this tool for if one can achieve the same with the configuration file added to system startup? Or ktune is just such file?
View 1 Replies View RelatedIs there any way we can control the speed of pvmove??
View 1 Replies View Relatedhow can I check if disk devices are running at the proper speed (read/write access)?What are, for example, the correct values for ATA o SCSI device, if I test them with hdparm?
View 2 Replies View Relatedis there any PHP upload/download connection speed test script out there
View 2 Replies View RelatedI want to setup a Linux File Server for a small windows network (around 50 users). I do know that I am gona need Smb service/pkg for that. I haven't used Samba for a while now and as per the best of my knowledge, entire communication (including usernames and passwords) between a samba server & windows client machines will be plain text. Is there any way to secure all this communication??
Secondly, if i remember correctly, MS windows wont let me mount more than one samba shares as network disk when all my shares can be accessed by different smb users with different passwords?? is there a solution to this problem? OR may be if there is any other package available for this purpose so that i wont have to use samba?
I want to set up the following server in open suse:dhcpopenldapnfs (to allow users to mount their home directories from the serverI started off with the openldap server. I configured it with dc=localdomain,dc=local as its domain. As the server machine has no internet. Though when I go to add a .ldif file with the following command
Code:
ldapadd -x -D 'cn=Administrator,dc=localdomain,dc=local' -f /home/base.ldif -W
It returns this
[code]....
My Computer options arent great, but i am going to be starting the process of switching all the computers in my house to linux, i wanted to see if i could make a server to connect all of them for file sharing, but mostly for world of warcraft in the house.it would only be 10 computers accessing it at once. i would basically want to know what the best form of linux would be, the programs id need to have, if it could be done on a desktop based machine, or if id have to use my server. if i would need different hardware or if the linksys hardwired router going to be enough connection. i guess the filesharing would be more the pressing need, especially if it is possible to create a server and convert the connected computers to linux through use of the server
View 4 Replies View RelatedI am running a NFS share on a Debian Lenny server with to network interface.
Sometimes when booting the server the following messages i shown in syslog:
Code:
If the system is rebooted then NFS is functional again. I would like to know way this happens somtimes so i can repair it, anyone with an idea? Another thing is that i would like to bind the NFS service to a specific interface e.g eth1 is this possible?
This is not intended to teach you about http.conf and its various options. This guide is intended to help with speeding up your web servers by assisting in protecting them from petty abuse, such as hotlinking and scraping, and by using options that yield better performance in general. The methods used in this guide address general concepts, but the implementations of the methods are completely arbitrary, and are tailored to my needs. Each user may want to make their own modifications to suit their own setup. Again, this is a general guide, meant for instruction purposes only. I will go over each significant section in the file, and explain what it does, and the reasoning for it.
This assumes that you WISH to disable the ability to use .htaccess, and to administrate your websites on the server level. If you have a shared hosting plan then you cannot administrate your server at all, and so some of these sections will not apply to you, but some of them will; the ones that still do, you will place in your .htaccess file, in place of your httpd.conf.
Some of the options in these files are default, and so they may not be explained at all. This thread is more about the non-standard configurations.
Most of these options are standard. Notice that there are extra AddTypes, for things such as .xpi files (firefox plugins, etc), and .ogg video files.
Also take note that we disable the option for .htaccess. This makes a dramatic speed increase. This is because if .htaccess is enabled, then for each request made to your server, apache must look in the directory where the requested file resides for an .htaccess file (it does not matter whether one is there or not, and the lookup is NOT cached, so it much be performed EACH request). If apache finds a file, it must parse it. Then it must look in the parent directory, and in the parent's parent, and so on, until it reaches root (/). This is done for EACH and EVERY request. Disabling .htaccess and administrating your server at the global level will make a dramatic difference on busy servers. On not so busy servers, you may not notice the difference.
Note that we disabled cgi-bin completely. This is because we're running mod_php, so we don't need cgi-bin. If you're not using it, lock it down so that no one else can .
Also note that we used AddOutputFilterByType to make sure that all text files were compressed before being sent across the wire. This saves bandwidth.
Of this section, most of these options cannot be set in .htaccess. Options such as the addtype and addhandler and addencoding CAN be set in .htaccess; the rest are global/sever level only.
Code:
I am curious if it is possible to use multiple hard drives to increase server speed. I know I could run stripped drives or RAID0, but was wondering if there is any other way to do it within Linux. My default 9.10 Server install has 3 partitions as a default. Would splitting these on three drives make it any faster?
View 3 Replies View RelatedI have about 5 computers on my network that get their internet connection from a Linux NAT server.
192.168.12.02 is a Linux server that has a NAT set up to share the internet connection.
192.168.12.03 is a download server that is almost always downloading
192.168.12.05 - 192.168.12.20 is assigned by DHCP to users.
I want to make it so that the download server runs at full speed but is throttled only when someone from the user IP addresses range tries to use the NAT server.I think I'm looking for some way to set the download server's packets to have a lower priority than the client's packets. Is there a way to set this in the Linux server?
I'm planing to copy a productive mysql innodb file from one server to another, and the file size is around 300GB. As the file is keeping changing all the time, I have to shutdown mysql instance and copy the large data file to other server as quickly as possible.I should have to find a way to speed up file copying ... I'm wondering whether there's a way to copy file block by block.If the destination side block has same content, then bypass it.
View 4 Replies View RelatedI am currently in process of remodeling my home file server and would like some advice. The server has two internal hard drives that are rather small (10-15G) and I've now ordered a larger 2 TB drive which for the time being will have to run as an external drive through USB 1 (going to be rather slow).
I'm probably going to put the OS and swap on one of the internal drives but I was wondering if there was a good option for increasing the system's performance by making the second internal drive act as a kind of buffer for the 2TB usb drive. I'd like both the advantages of the large size of the USB drive and the fast read/write speed of the internal drive. Would it be possible to put it together so all reads and writes to the fileserver would first go to the fast internal drive (or even better, to internal drive and USB drive at once, although I suppose RAID is not an option with USB attached storage), and would then be put to the large drive. It would also be nice if the most used files from the large USB drive would be cached on the internal drive for fast read speed. I understood that ZFS would help me accomplish something the like but as I understand, it's not that easily available on Linux.
The current plan is to make the large drive a simple XFS drive and build a small daemon on the server that would simply move all new files from the internal drive to the USB one, once they are not used but it would be nice to have a more low level solution.
I have recently migrated my file server over to a HP Microserver. The server has two 1TB disks, in a software RAID-1 array, using MDADM. When I migrated simply moved the mirrored disks over, from the old server Ubuntu 9.10 (server) to the new one 10.04.1 (server).I Have recently noticed that write speed to the RAID array is *VERY* slow. In the order of 1-2MB/s order of magnitude (more info below). Now obviously this is not optimal performance to say the least. I have checked a few things, CPU utilisation is not abnormal (<5%) nor is memory / swap. When I took a disk out and rebuilt the array, with only one disk (tried both) performance was as to be expected (write speed >~70MB/s) The read speed seems to be unaffected however!
I'm tempted to think that there is something funny going on with the storage subsystem, as copying from the single disk to the array is slower than creating a file from /dev/zero to the array using DD..Either way I can't try the array in another computer right now, so I though I was ask to see if people have seen anything like this!At the moment I'm not sure if it is something strange to do with having simply chucked the mirrored array into the new server, perhaps a different version of MDADM? I'm wondering if it's worth backing up and starting from scratch! Anyhow this has really got me scratching my head, and its a bit of a pain! Any help here would be awesome, e-cookies at the ready! Cheers
Somewhere out there there has to be someone that can help me set up my lamp server to send automated emails using my cable providers SMTP server
View 2 Replies View Relatedi have successfully done the setup of postfix and dovecot on this link [URL]I run Cent OS on top of window 7 via VM Player,i want to access mailbox from windows 7 using email client like Thunderbird and Outlook. What setting i need to do in my mail server ?
View 1 Replies View RelatedI had a F14 samba server working flawlessly now for a quite time. Unexpectedly about a month ago the write speed slowed down around 64kbit/s and that's really slow. I haven't changed any configs, only updated the server. I've troubleshooted this from many angles:
-It is not a network issue because sftp writes are good.
-It is not a RAID1 issue because write speed from another directory (locally) are good.
So basically samba is the only thing left.
Here's example from smb.conf:
[MyShare]
comment = My share
path = /mnt/RAID_share
writeable = yes
browseable = yes
writelist = +smbuser
Here's a snip from logs today:
[2011/08/04 09:04:27.509273, 1] smbd/server.c:267(remove_child_pid)
Scheduled cleanup of brl and lock database after unclean shutdown
[2011/08/04 09:04:47.526336, 1] smbd/server.c:240(cleanup_timeout_fn)
Cleaning up brl and lock database after unclean shutdown
[2011/08/04 09:17:57.634660, 1] smbd/server.c:267(remove_child_pid)
Scheduled cleanup of brl and lock database after unclean shutdown
[2011/08/04 09:18:17.635196, 1] smbd/server.c:240(cleanup_timeout_fn)
Cleaning up brl and lock database after unclean shutdown .....
There's a restart that is not software related.
I am on a 172.16.x.x network with about 60 Windows XP home and Vista home clients in a peer-to-peer workgroup that uses DHCP to assign addresses. About half the traffic on my LAN is netbios broadcast. I do not want to do a WINS server because I do not want to have to manually change the registry on every machine. This is only for local name resolution and I do not have any web servers or e-mail servers. I do not have access to a Windows server to use as a DNS server. I am on Debian and using BIND but am open to other suggestions.
View 1 Replies View RelatedI am writing a script to do a speed measurement from my ISP's test ftp server. To do this interactively I connect to the server, enter credentials, enable hash and download a test file. The process concludes with something like
Quote:
################################################################
226 Transfer complete.
1048576 bytes received in 2.87 secs (356.6 kB/s)
So I entered the credentials for the server in my .netrc file and created a little bash script as follows
Quote:
#!/bin/bash
cd ~/Desktop
# poiuytrewq is the limit string of the "here" document
[code]...
The script executes as expected EXCEPT that I do not see the statistics at the end of the transfer. It terminates thusly
Quote:
#################################################################################################### ############################################
ken@taylor12:~/Desktop$
I have tried adding another ftp command such as ls to the end of the "here" document (in case the results were clipped by the bye command) but to no avail. The ls result immediately follows the ### - no stats I am at a loss.
I've recently turned an older PC into a linux box for the purpose of creating an online server with ftp and ssh capability and file sharing. I've installed Kubuntu 9.10 and I'm trying to ssh to the computer from outside the network.I've install the openssh-client and openssh-server and I've created a static ip address, which works fine. I cannot ssh to the machine from outside the isp using either the direct ip address or hostname. The machine is connected to the internet via a Linksys Wireless G router, and I've edited the configuration settings to keep port 22 open for connect in the port server utility.
I've checked the ssh_config and sshd_config settings and port 22 is the default connection port, which is supposed to be open. I've run ifconfig and everything looks fine. I can connect to the computer using a machine connected to the same router, but other computers cannot access it. I want it to be visible to everyone.
I have a problem on server running RHEL 5.4. Oracle jobs are sometimes succesfull,somtimes not. Error message is: server unexpectedly cloesd network connection. Everything seems to be set correctly.
View 1 Replies View RelatedWhat is the best option: leave the ADSL modem as the router of my network, or use a Debian Linux server in place?
Info:
* there is high traffic on my network (at work time);
* 7 PCs on the network;
* Debian Linux server: PC - Intel Pentium IV 3.06 Ghz - 2 GB RAM.
I have a Fedora 11 system and cbq.init-v0.7.3 in it. Now I want to restrict upload speed from my ftp server to Internet (eth1). According to docs I've made a simple file /etc/sysconfig/cbq/cbq- 00.inet_upload_restrict:
DEVICE=eth1,100Mbit,10Mbit
RATE=800Kbit
WEIGHT=80Kbit
PRIO=5
RULE=:20,
So as you can see I want to limit outbound traffic on eth1 from my ftp port 20 to any to the 800Kbit/s (100Kbyte/s). Now I do cbq start, it says: find: warning: you have specified the -maxdepth option after a non-option argument (, but options are not positional (-maxdepth affects tests specified before it as well as those specified after it). Please specify options before other arguments.
find: warning: you have specified the -maxdepth option after a non-option argument (, but options are not positional (-maxdepth affects tests specified before it as well as those specified after it). Please specify options before other arguments. but it starts and works. Now I check the speed and it is...
I am having a problem with my CentOS based server where the hard drive speeds are incredibly slow for both of the hard drives installed -
Code:
Timing cached reads: 16512 MB in 2.00 seconds = 8272.92 MB/sec
Timing buffered disk reads: 12 MB in 3.01 seconds = 3.98 MB/sec
I have looked around but do not understand the complexities of rebuilding kernel etc so would need some assistance. I have checked IO_support and it is set to 0
Code:
Here are the results for hardware installed after a quick lspci -v
Code:
If there are any noticeable incompatibilities here and how I could work to speed this up. I only have SSH access and could possibly get a KVM on it as it is currently locked up in a DataCenter.