0
votes
0answers
86 views

High “system” cpu usage, no IRQs to blame

I have a WYSE V50L 800MHz terminal with Ubuntu Server 12.04.3. The problem I'm having is low transfer speeds (caused most likely by high "system" cpu load) while exchanging files with the terminal. ...
0
votes
1answer
120 views

How to check what process is blocking local linux server (Slackware)

I have a Slackware linux server at my work. This is network, database and web server. Our main web application is used as a backend application to administrate our public website (which is frequently ...
0
votes
2answers
148 views

Serious latency over SSH: CentOS 6.3 VNC is fine, no visible I/O bottlenecks

This is not an issue about logging in via SSH, this is a lag during typing input and receiving output while connected to a server via SSH. I tested the speed of the commands using the time command and ...
1
vote
1answer
236 views

Slow Network Transfer Through Linux Firewall VM

We have a RedHat 5.8 VM running on ESX on top of Cisco UCS that is acting as a firewall using iptables. The box has multiple nics, one nic serves as the gateway to our network with the other nics ...
0
votes
1answer
193 views

LAN bandwidth in Linux is low

everyone, I connect two PCs both with 1000Mbps NIC. One(A) of them runs Fedora 8 while another(B) runs Windows7. I test bandwidth between them with Ixchariot, it shows about 10Mbps. If A and B both ...
0
votes
2answers
94 views

moving files and directories between two machine, via a third, preserving permissions and usernames

The situation is as follows: Machine A has a file repository accessible via rsync Machine B needs the above mentioned files with all permissions and ownerships intact (including groups etc) ...
1
vote
1answer
1k views

Linux PHP web server horribly slow when accessed from any windows browser

I have a Linux server (Ubuntu 10.04) running apache2 and PHP. Everything runs fine when accessing a page from any browser from another Linux machine or Mac. But when I try to access a page from any ...
5
votes
4answers
652 views

Connections establish slowly, while download rate is great -Linux

EDIT: I have seen this problem elsewhere with an ADSL connection and not only USB modems or cell network. I have my cell network USB modem attached and configured, running under Ubuntu 10.04 The ...
2
votes
3answers
408 views

Stop slowing down fast and verbose operations when using ssh over slow connections

I often copy many files between 2 servers connected via 1GBit ethernet while I am connected via VPN and SSH over DSL. The problem is, that the verbose output (1 line per copied file) which needs to be ...
1
vote
2answers
1k views

Connecting to mysql over TCP hangs for 3 seconds

I have a problem with a newly installed MySQL box: When trying to access the database with multiple clients and a lots of retries, sporadically, connecting takes longer than 3 seconds. I only get ...
4
votes
2answers
275 views

Linux box takes 10 seconds to make a connection

My machine is taking 10 seconds to establish a connection. Once the connection is established, it is up to speed and works correctly. But if I for example ping www.google.com, it takes 5 seconds for ...