General :: Proxy Server Not Responding To Clients?
Nov 15, 2010
I have deployed proxy server in my office about a month ago. I have about 7-8 client accessing it through port 3128. After some days of deployment, my server started creating problems. Some clients were not able to access proxy while other clients were accessing it. The error message which I found in cache.log was:
Code:
WARNING: Closing client 192.168.2.99 connection due to lifetime timeout
In this way it was disconnecting clients randomly. The problem resolves when I restart proxy server
Im sending my cache.log file
Code:
Last login: Mon Nov 15 12:37:29 2010 from 192.168.2.2
[root@localhost ~]# cat /var/log/squid/cache.log
2010/11/15 08:11:49| storeDirWriteCleanLogs: Starting...
2010/11/15 08:11:49| Finished. Wrote 57740 entries.
[Code]....
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Jun 14, 2010
i have the following ip assignments
fedora (iptables)
eth0 -private :192.168.1.1
eth1 -public : 186.117.50.6
squid proxy
192.168.1.10:3128
my clients range
192.168.2.0/24
how can i make my clients to browse internet only from proxy server my network is NAT 'ed. Please specify a iptable rule to allow internet access for my clients to browse ONLY if they come through proxy server.
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Sep 23, 2010
I have a network on which all the wired and wireless connected clients are isolated from one another which is what our network requires.
One down side to this is that the isolation doesn't allow local clients to talk to one another and if they did, I would want it routed through the gateway. Is it possible to enable proxy arp on only the interface which the clients are connected (eth1) to make the gateway forward traffic between local clients?
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Jul 27, 2011
I have configured router(192.168.1.2) to serve only one machine with IP - '192.168.1.6' and set up SQUID proxy on '192.168.1.6'. I have defined some rules(ACL) regarding connections to internet on SQUID proxy.
I changed the Gateway of rest of machine (192.168.1.60 - 192.168.1.69) from '192.168.1.2' to '192.168.1.6'.
The policies which I defined in SQUID is working properly but 'Linux Evolution mail' client is not fetching mails.
Is I have to do any other settings on 'Linux System' or 'Evolution mail client'.
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Feb 25, 2011
i m experiencing some problems connecting via ssh two ubuntu workstation: a ssh client and a ssh server The goal of that is to run from local client computer some X applications on the remote server machine
i have configured both client and server for X11forwarding (i think) properly Infact when i launch xeyes on the client i see the X app running
the problem is for all other X apps. For example when i run xclock, nothing happens on the local PC the prompt continues blinking without any reponse, no windows opens and the strangest thing, the shell is stucked. No possible to interrupt with [CTRL]+c the onyl thing to do is close the shell window
Starting in verbose mode (debug), X11 seems works correct , it says x11 confirm as last message .
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May 31, 2010
I have a network consisting mostly of Windows Vista and 7 clients and an Ubuntu server. The server provides both the DHCP and NTP services through dhcp3-server and openntpd. In my dhcpd.conf, the subnet is declared as follows:
subnet 10.10.10.0 netmask 255.255.255.0 {
range 10.10.10.10 10.10.10.200;
option broadcast-address 10.10.10.255;
option routers 10.10.10.1;
option ntp-servers 10.10.10.1;
The clients don't seem to be using the NTP server though. When I capture the network traffic with Wireshark during the DHCP process, I also see no mention of the NTP option in the DHCP offer message. I am not quite sure if the clients would have to specifically request that option to receive it or if I have to make another configuration to offer the option.
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Jan 20, 2011
I'm curious but recently I was troubleshooting some iptables rules to allow nfs clients access to my nfs server. What was strange was that I setup a tcpdump session on my nfs server so that I can see which ports were being requested. I ran several tcpdump sessions with the following filters in place.
tcpdump -vv src ip_of_client and dst _ip_of_client
tcpdump -vv src hostname_of_client and dst hostname_of_client
However, the only packet I ever saw come over the wire to me was the client host asking for a arp resolution. Anyhow, I finally just ran 'rcpinfo -p' and added those ports to my iptables rules and it worked great. However, I would like to understand how nfs works in case I need to troubleshoot it in the future. I do understand that nfs uses portmappers, would this explain the behavior?
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Feb 28, 2010
I've been able to make my server connect to my clients but not able to share the internet connection. I've been searching around but haven't come across an answer yet. Hoping someone here will point me in the right directiong. I have the following setup running. I'm trying to make an internet connection go through my server but haven't been able to get it to work.
[Code]...
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Dec 9, 2010
Currently my DHCP Server is working now what i want to have is auto detection of squid proxy in any browser but I still got an error in my dhcp server when I restart it.
My Config:
# DHCP configuration generated by Firestarter
ddns-update-style interim;
ignore client-updates;
[code]....
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Feb 23, 2011
I am trying to set up my squid3 proxy as a transparent proxy - right now, I have to manually configure browsers to access via proxy. I understand that I have to put some rules into Iptables and also some further directives in the squid.conf.
I have a couple of specific questions. The proxy server is running on a Ubuntu 10.04 workstation and this machine also acts as a dhcp server for the network. I have just one subnet , namely 192.168.0.1-254 There is only 1 network card. Is it much easier to put in a second network card or is it just as easy to configure the existing lan card as a dual IP?
Is it necessary to configure these 2 IP's ( whether they are via 2 lan cards or dual IP on single card ) to be on different subnets. i.e ETH0 192.168.0.1 and ETH1 192.168.1.1 or is ok to have something like ETH0 192.168.0.1 and ETH1 192.168.0.254 ( where ETH0 is the one facing the LAN and ETH1 points to the modem router / switch i.e The Internet ) Where specifically do I save the Iptables rule configuration file and what must I call it ?
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Dec 15, 2009
I want to use imap account settings in MS outlook 2003/2007 with backup end Sendmail server. When i configure imap settings in MS outlook 2007 it shows mails are coming from Sendmail server , but another local Personal folder attched with outlook client. I have changed my settings so that every send items mail are coming under imap send-items folder ,but that extra folder stilli in place. I do not see any option how to remove this extra folder from my PST list.? As this never comes with if we are using MS Exchange.. Is there any way i can change my local delivery bydefault with IMAP folder only and save my Contact in IMAP Folder?
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Nov 12, 2009
I have CentOS 5 + Sendmail within the local network with Smarthosting settings. How my Laptops users will connect my local Sendmail server for sending / receiving e-mails while out of the office network. I have router but no firewall in place in local network.
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Aug 25, 2010
Scenario:A - Local Unix machineB - socks proxy server port 1080C - remote mysql server port 3306I want to connect to the remote mysql server(C) from local unix machine(A) using sock proxy(B).
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Jul 23, 2010
We are using squid proxy server in Linux and server is getting hang often, during this time when see the log file it will show like below
Jul 23 11:52:26 Linux-GW avahi-daemon[2028]: Invalid response packet from host 192.168.1.154.
Jul 23 11:54:55 Linux-GW avahi-daemon[2028]: Invalid response packet from host
[code]...
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Jun 28, 2010
I want to clone a linux bridge repository. i'm behind a proxy server.
The command :
gives the following error
I've done
1 - sudo apt-get install socket
2 - in my home directory, a shell script called "proxy-cmd.sh" was created containing #! /bin/bash (echo "CONNECT $1:$2 HTTP/1.0"; echo; cat ) | socket git://MYPROXY 3128 (read a; read a; cat )
3 - chmod +x proxy-cmd.sh
4 - export GIT_PROXY_COMMAND=<PATH TO MY SCRIPT>/proxy-cmd.sh
Still not getting.
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Aug 26, 2009
Does anyone have an UP TO DATE document, or know how to set up a standard RHEL 4.1.2... 64-bit box to be a YUM Proxy machine? I have found several manuals, all being dated a while ago.
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Aug 3, 2011
I have setup a Squid Transparent Proxy that works and I can connect to most websites and block-list works and yadda yadda yadda.
My problem is that when I try to connect to a certain PC it will not work. A bit more clarity...
[INTERNET]----[DSL-MODEM]----[ROUTER]----[SQUIDSERVER]----[NETWORK]
Connected to the DSL-MODEM is the PC in question that I can't connect to when using Squid. If I bypass the Squid from the Network and go through the router I can connect to the PC.
I want to be able to use the Squid server and still access the PC connected to the Modem and I want to have a Squid SAR report of the Network PC's accessing the PC on the modem.
The Modem/Router/Squid/Network all use the same IP range, but the PC on the modem has a different IP.
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Sep 26, 2009
We installed the apache server on oraapps.yan.com. we are planning to use as a proxy server.we have 4 servers inlcuding oraapps.yan.com. Each of them has 3 or more applications. I would like to redirect them to oraapps.yan.com. is it possible. if its how to do that.
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Apr 10, 2010
I have just installed ubuntu server 9.10.Now i wish to make it my mail server and proxy server along with my web server can i. The config of the macgine is PIV 512MB ram, 80Gb HDD. The enviroment that we have is. We have 2 diff isp in the workplace, 1 is the main link and the other is a failover link. At present we use wingate which has the facility for the same. My question is because i am not so used to command is there a GUI based proxy server for linux which is same or similar like wingate or winproxy. how to setup all these so that i can learn and then start spreading the linux into everyones mind so that we are not bugged i with ms.
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Mar 31, 2011
I want to use proxy server in fedora 14.I dont know how to do it.
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Jul 14, 2010
I've got a machine running Ubuntu Server that is on several VLANs. Each VLAN has its own subnet and the server has an address on each subnet. The switches are set to allow tagged traffic to the server for each VLAN that it is on. Switch ports ending with workstations are given untagged ports on whatever VLAN is appropriate. Workstations are given addresses on a subnet for each VLAN via DHCP. All this works great and hosts on any subnet/VLAN can access the server as normal via its address on that subnet/VLAN.
Accessing the machine by its address on a non-local subnet is where I run into a problem. Inter-subnet traffic has to go through a router, which has been set up appropriately. Running tcpdump on the server and pinging it from a workstation on a subnet, using its address on a different subnet, shows the server receives the ping, but sends no response:
Code:
sudo tcpdump -i vlan4 -n
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
[code]...
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Jan 16, 2010
If you leave your hotmail account signed in on a proxy server, can others access that account by just typing in [url] in their browsers? ie does the proxy server share all connections to the same site with logins?
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May 19, 2010
I am new to Linux and need to configure a Linux machine with any server. I plan to configure Proxy server. What should I do?
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Nov 10, 2010
I live in a campus & I use wifi...I know the server host IP but dont know ftp port number....so I can not open ftp pages through google chrome as I cant specify the port number. Is there any way to know the port number?
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Feb 10, 2010
I am a newbie to SQUID.How to configure it and make it active in my system?
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Oct 31, 2010
I just finished installing my squid on linux 10 SP1. I setup my squid.conf file and the access lists (acls). When I try to browse the internet on any page, my brower returns a plain page with the words "It works" What do i do?
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Feb 11, 2010
how to implement proxy server with firewall and the client users should be authinticated by asking username & password while opening their web browsers and finally i want to see the websites visted list of all the client computers On cent os 5.3
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Jul 5, 2010
I am using squid server. I want to redirect one perticular url request to other squid proxy server .
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Jun 30, 2010
I am trying to install Squid 2.6 as Transparent proxy server.Can anyone provide the step by step configuration details
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Jul 24, 2010
how can i make thinstation as a proxy server
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