Can anyone walk me through the process of increasing my max connection on my linux server?Over the last few weeks I have been getting errors saying I have to many connections.I think the default is 100 and I would like to maybe increase it to 150 or 200I know I cannot go to high because I will then be using to much of my memory or maybe CPU
View 8 RepliesHow to setup Dedicated Server for Web Hosting using Ubuntu Server or equivalent opensource Operating System? And how to make secured my Dedicated Server on public?
View 1 Replies View RelatedI am trying to setup a sendmail server on my dedicated server. It was pre-configured to use exim from cpanel. Is it possible to use exim for all emails from a a certain domain i setup on the server and sendmail for others?
ex.
domain1.com -> exim
domain2.com -> sendmail
If it is possible can someone let me know how i would go about doing this? If it is not how would i disable exim and use sendmail for all mail?
After installation Ubuntu Server 10.10 I don't know what to do next to access to the Internet.
View 9 Replies View RelatedHow can I increase the size of a server partition as /dev/loop0
Disk informationDeviceMount pointUsage
/dev/loop0/var/tmp2% (11,070 of 495,844)
/dev/sda1/46% (100,819,056 of 233,872,292)
/usr/tmpDSK/tmp3% (11,070 of 495,844)
I use
WHM 11.30.1 (build 4)
CENTOS 5.6 i686 standard on ds-59085
I run a server with nginx at the front and apache at the background. Nginx serves as a reverse proxy in here. As there were lots of DOS attacks, I have implemented Deflate-DDOS, APF and Nginx anti-ddos features and the server runs without a problem. Once every month, the load on server increases upto 300 and I receive an email like this :
Subject : Cron <root@server> [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm
Content :
find: `/var/lib/php5/sess_0ca40520ac8ecb66090746f90da17516': No such file or directory
find: `/var/lib/php5/sess_3839b0cbf042934183d56ff682c948e0': No such file or directory
find: `/var/lib/php5/sess_dec1ed8ea1f62caf7a42a29b9f82c506': No such file or directory
[code]....
There's more that 100,000 ( I suppose ) lines on this email. I have no idea what the problem is. It seems there's something with the session, but I really don't know what it is.
I am implementing a proxy server in c++. It is multithreaded(posix).Used CPU : Xeon(8core) Thread number : 8 One main thread, and other 7 thread created by the main thread. The main thread always listen to ports. When the main thread gets a client data it push the request in a queue[there are one queue(total 7) for each thread] based on ip and then give a signal to the appropriate thread. Then that thread gets the request from it's queue and process data and then forward the data to a appropriate destination.
There is another important thing, I assign each thread excluding the main thread to individual core by using affinity.The main thread listens to 5 ports. Test environment: We run the server. The client sends audio data at a particular rate.
1. The main thread CPU usage gets overloaded (above 80%) after a certain load from client.
2. Other cores remain about 0-10%.
The thing is that we want to distribute the load among all the cores equally by multithreading. But how can we do this ? Can the listening task of ports also be distributed ? I need an efficient algorithm for load balancing among threads. The data sent and receive rate of server is about 8.5MB/s. How can we improve this ? we are using gigabit LAN card. When the server only receive data from client it can receive data above 80MB/s. But when it both receives and sends data simultaneously it only manage upto 8.5MB/s.
I want to rent a (root) linux server to run a vpn service on it. I want to allow people to use this vpn.
My questions are as follows:
- What kind of server/service should I rent - dedicated or vps?
- Is one IP-Address enough to connect, say, 100 user? (I plan to run IPsec or OpenVPN, maybe PPTP)
- What Bandwith and/or traffic limits I need to consider to make the service reasonably fast for the users?
- Which Linux-distro should I use? Ubuntu Server, CentOS, FreeBSD, Debian etc?
- How much RAM and HDD space is recommended for such an endevour?
- Any advice on the processor type the server should have?
- Is 100M network ok or better 1000M?
- What means 100Mbps shared bandwidth in contrast to 10Mbps dedicated guaranteed per server?
I am trying to connect to my VNC Server from a Windows 7 Box running TightVNC:I've followed all the instructions on this page:[URL]And I changed my xstartup scripts:
/etc/sysconfig/vncservers
# The VNCSERVERS variable is a list of display:user pairs.
#
[code]....
Wath should be the bandwidthd needed for a home dedicated server so i can run several sites on it?
View 1 Replies View RelatedThe /var directory is 97% full on my dedicated server:
I would like to know if it is safe to clear it and how to clear it (assuming it will not disrupt/kill server services to do so).
I have Matrix control panel so i can view the storage etc but it does not have an way of clearing the /Var directory.
I have Putty Access to root but do not know which command to use.
I found a few threads but the information is not clear to me as there seems to be an assumption of basic knowledge I don't yet have.
My linux/ubuntu support that usually does this kind of thing for me is away and not contactable and my server is grinding to a halt and unable to store/send email.
I have only a very basic understanding of command line but really need to get this sorted ASAP.
I have a dedicated server and I am having email issues etc (seemingly) because the /var directory is 97% full
I would like to know if it is safe to clear it and how to clear it (assuming it will not disrupt/kill server services to do so).
I have a 'Matrix' control panel so i can view the storage etc but it does not have an way of clearing the /Var directory.
I have Putty Access to root but do not know much about command line access.
I found a few threads but the information is not clear to me as there seems to be an assumption of (basic?) knowledge I don't yet have.
My linux support guru that usually does this kind of thing for me is away and not contactable and my server is grinding to a halt and unable to store/send email.
I have only a very basic understanding of command line but really need to get this sorted ASAP.
Is it possible and SAFE to delete files via FTP from the /var/cache/apt/archives?
I was unable to access my dedicated server for few minutes. I have checked the apache error logs and found below notice:
[notice] caught SIGTERM, shutting down
I have tried to search from Google but could not find much information about this error.
When you need to change something on the server you can hook up a monitor and a keyboard and do it through the console.
I would like to hook up an external monitor in this fashion for a desktop. The current video card can only support a single display. So I was hoping there was someway to use a second monitor as just a permanent console since simple text shouldn't require a video card?
if anyone can point me in the direction of a tutorial (step by step) how to make a virtual dedicated server using ubuntu to host a website?
View 1 Replies View RelatedI want to install Webmin on a dedicated remote server. I keep reading different blogs/tutorials etc about installing webmin on Ubunto server 10.10 but it seems too easy to be true. There is never any mention of requirements etc. I did read that even perl isn't needed pre install now and will install with webmin.But do i need to install lamp etc first or does it pull these in when Webmin its installed?
View 2 Replies View RelatedI have a server running slackware 13.1, and it is running windows server 2003 with QEMU-KVM. I followed [URL , now two system can connect each other.
The problem is: I bought two dedicated IPs, and I wanna know how to setup these two system to be Internet Servers.(Nginx in slackware, IIS in 2003) I found some subjects but I can't find what I want.
i have a script in /home/rpcaldeira/server.sh to start my source dedicated server. But i would like to start this on boot time. get this to start on boot time? I'm running openSuse 11.2 in Text Mode.
View 2 Replies View RelatedI have set up a Virtual machine on a dedicated server from 1and1. I hoped to use a bridge to give the vm direct access to the internet but 1and1 do mac filtering and so the only option is to use NAT.
I used Virtual Machine Manager on my Ubuntu 10.04 machine at home to install Debain Lenny on the vm on the server using KVM and all went well. I put it on a virtual network 192.168.100.0 and i can access it from the host and i can access the internet from the guest using NAT that libvirt set-up.
I bought another ip address from 1and1 with the hope of forwarding packets to the new ip address 11.22.33.02 to the guest vm.
I have tried all sorts of routing rules using iptables without any success.
my virtual network is on virbr1 the guest ip is 192.168.100.50 my external network device is ip say 11.22.33.01 on eth0 with the secondary ip say 11.22.33.02 on eth0:1
Here are the latest rules i tried:
Quote:
iptables -t nat -A PREROUTING -d 11.22.33.02 -i eth0 -j DNAT --to-destination 192.168.100.50
iptables -t nat -A POSTROUTING -s 192.168.100.50 -o eth0 -j SNAT --to-source 11.22.33.02
iptables -A FORWARD -p tcp -i eth0 -o virbr1 -d 192.168.100.50 -m state --state NEW -j ACCEPT
iptables -A FORWARD -t filter -i eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT
[Code].....
I am currently having an issue attempting to set up a dedicated server for source games (TF2, CS:S, L4D2). The required port (27015), along with most others, appears closed to the rest of the world and upon a port scan with DMZ hosting on (therefore no router interference between the internet and my computer) only a few ports are open (80, 139, 443, 445). My ISP does not block ports so therefore the only issue I can find is with my computer running Ubuntu 11.04. I have ensured that all traffic is allowed via iptables and I can't think of anything else that would have ports closed.
View 9 Replies View RelatedBeen a while since I last posted here, though I stop by often. Unfortunately I find myself in a bit of a pickle again. Here's the situation. I have an RHEL3u5 server running Apache 2.0.48 and an equivalent of Tomcat and JBoss. IBM's WebSphere Application Server 6.0.2 to be exact, the Apache also being one of their flavors (IBMIHS).
Everything's been going dandy since forever, but lately the httpd processes seemingly just hit a brick wall of some unknown kind. Checking the /server-status page reveals a whole lot of piling up "waits".
The funny part is that the load average rarely goes higher than 1.0, I/O seems within limits, memory usage as far as I can tell seems fine, disk usage appears all good... I would've felt more at ease if something did shoot through the roof, but there's just nothing to go on. It's definitely Apache getting its knickers all in a twist as well since I can access the servlet engine's web GUI just fine over its dedicated port via browser.
Here's what I noticed so far: Apache processes rise steadily to over 35 or so, after which it all goes south fast. As a result and as a temporary fix, I've enabled a cronjob that checks the amount of httpd processes and just restarts Apache if they're above 28. So far this seems to keep things sort of happy, but obviously I'm still twitchy with the overall state of affairs. I do not have the settings immediately at hand, but here are some further details so far:
Server spec:
8 x Xeon CPUs
8GB RAM
I'll post further details probably on Monday, specifically key portions of the httpd.conf file.
Im trying to install a trading program fx trading station II on a dedicated virtual server that's linux based at media temple. Any ideas on how to run the program so that the exe file isn't prompting to download the file instead of prompting the user to login and trade?
View 2 Replies View RelatedI have a very simple question .I need to tune Kernel paramaters in RHEL 5 server to increase the number of concurrent connections what is the command to do this .How do i know the defaults and the maximum value i can raise this to.
View 1 Replies View Relatedmy /var dir partation /dev/sda7 of 965M, how to increse this size using free available disk space?
[root@SANJAY-CMS 500]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 4.8G 3.1G 1.5G 69% /
[code]....
Is it possible to increase the size of the / partition?
View 5 Replies View RelatedI would like to enable XML-RPC module on my dedicated server with CentOs 2.2-3.2.el5 hosted on 1and1 server. How do I enable this module? What are the procedures?
View 1 Replies View RelatedI 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 RelatedCode...
I don't know how to increase the number of url_rewriter processes.
fedora 12.i have one partition which is mounted on a rootfiles folder having space of 700gb which is located on a /directory.but when im adding data on rootfiles my /root directory space is also getting increased.so could any one telme how to increase the size of root partition.i want to resize my rootfiles folder to 600db and want to add 100gb to my / directory.how can i do this plz helpme this is important 4 me.first i will free 100gb then i will add 100gb to root directory.but i dont want to loose any data on rootfiles folder.
View 3 Replies View RelatedI have created a filesystem /data using software RAID-1 concept using two disks.
/dev/sdb - 50 GB
/dev/sdc - 50 GB
now i have to increase the /data to 100GB by adding two more disk.
/dev/sdd - 50GB
/dev/sde - 50GB
is this possible, if yes
how exactly i can increase the existing RAID-1 array from 50GB to 100GB.