is there anyway for me to dl a proxy or use a proxy on ubuntu? other than the web based ones. i looked into using system->preferences->network proxy, but that stuff went way over my head. can someone explain this to me? how would i go about setting up a proxy for the web and using it effectively?
View 4 RepliesI followed this guide: [URL] and restart the Squid Server with no errors but when I try to SSH into it:
Code:
ssh -L 8080:squidserver:8080 user@squidserver
It just hangs there for a long time, not timing out and eventually (after a long wait) I get this:
Code:
ssh_exchange_identification: Connection closed by remote host
What could be the problem? I can SSH normally into the computer, but not into the proxy server. Do I need to forward the 8080 port on that network?
Ubuntu 9.10 10.04 "software center" seems like a good idea compared to the previous implementation but it ignores proxy settings under system->preferences->network proxy and system->administration->synaptic package manager->settings->preferences->network.
Other sections of Ubuntu work fine through the proxy e.g. web browsers and using synaptic directly. However sudo apt-get install doesn't work through a terminal on Ubuntu 10.04 beta despite all updates. problem is definitely in Ubuntu as some parts of it recognize the proxy settings and other parts don't. This disconnection appears to be worse in U10.04 compared to U9.10 but earlier distributions (from memory) never had this problem. Is there a "fix" I can use to get Ubuntu 10.04 to recognize the proxy settings across all its features?
I used windows OS and installed Ubuntu 10.04 (amd64) in separate partition and works well but had a problem in internet connectivity. Likely reason may be the proxy setting that we used in college (currently). I used this commands to set up the IP address and gateway.
ifconfig -a | grep eth
"eth0"
sudo ifconfig eth0 192.168.5.209 netmask 255.255.255.0
[code]....
Then I manually set the proxy setting of HTTP which is given as proxy server 192.168.5.2 and port as 8000, further more there is a wins setting which is 192.168.1.178, really don't know where to put this number.
I think there is an application which lets you set the proxy settings for all applications. I remember seeing something like this in Gnome's network menu but now I'm using XFCE.
View 1 Replies View RelatedSetting up an Internet proxy In the past I had set a computer to act as an Internet proxy. This would be multihomed, and running dansguardian, tinyproxy and firehol. Then webmin would be used as interface. By time I realised that this system is far from effective. Is there some other way to setup a proxy to be placed between users and the Internet? I would like (the admin) to be able to see in which sites users go and have a lot of control on access..
View 2 Replies View Relatedhow to lock down individual users from setting a proxy server. Its a server not a WS so it should never go to the internet. I want to lock down the system side and firefox 5 settings. found this link but its a bit confusing. I want to lock the system and mozilla Locking preferences - MozillaZine Knowledge Base I tired this and put the local-setting.js in and now the firefox wont start at all. "failed to read the configuration file. Please contact your system administrator. well read several sites that all say to do the same thing but they are talking windows and mac so may be i am missing something being Linux...So what I did was create a file called
/usr/lib64/firefox-3.0.12/defaults/profile
more mozilla.txt
//
[code]...
Still get error.this link explains what the setting 0-5 are used for Network.proxy.type - MozillaZine Knowledge Base So i thought this might be a permission issue and did a 777 on the local-setting.js file. Still get the error.
my linux box in the office has an a proxy server to access the internet. i can set this on my browsers. id like to know how i give my shell (bash) the proxy server settings so i can wget,yum install perl modules, etc. on my shell terminal without problems.
i used
Code:
export http_proxy=http://<proxy-server-ip>:<port>
for example
Code:
export http_proxy=http://bsc.aut.ac.ir:8080
and also i did this for ftp. but i doesn't work.
I am playing around with transparent proxies, unfortunately I do not have two machines to test it out with. The current way I am doing things is the program makes a request to a computer on port 80, I use
Code:
iptables -t nat -A OUTPUT -p tcp --destination-port 80 -j REDIRECT --to-port 1234 to redirect to my proxy that is listening on port 1234. The proxy will send out a request to port 81 (as all outbound port 80 are being fed back in to the proxy and if it sent out to port 80 it would just be a infinite loop) so I want to do something like
Code:
iptables -t nat -A OUTPUT -p tcp --destination-port 81 -j DNAT --to-destination xxxx:80
The problem lies with the xxxx part. How do I change the destination port without changing changing the destination ip?
I have recently installed tor + vidalia + privoxy on my maverick system. What I was hoping to do was set up transparent routing through tor using the instructions here - [URL] But Ive had no luck with any of the examples given. When Vidalia tries to connect it stops at the point of generating a tor circuit and never gets any further.
View 1 Replies View Relatedi want to setup a proxy authentication on fedora 15 for minimum of 5 users using squid but i had successfully setup a proxy sever on my system and its working perfecly.# vi /etc/squid/squid.conf this was the output.
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
[code]....
where will i entered the configuration and what are the configuration?
im looking at changing the computer systems over to Ubuntu, at a scout campsite im staff at. i have sorted some filtering out with dansguardian.
but how do i limit the powers of users, so remove all the administrative side and most importantly stop a user changing the network proxy setting.
i have used ubuntu before but not for a while, so im a bit of a newbie atm.
I was willing to create proxy in between the web app. and MySQL database so that I can do some modification before sending the query to the DB. But how to grep the query in the middle isn't working in the head yet. I found a tool named 'greensql' which captures the query in the middle but couldn't get how they are doing it.
View 4 Replies View RelatedI have to set up a proxy for my work's network. No computer except the proxy has a direct internet connection. The proxy will NOT be transparent so it authenticates with Active Directory and allows or denies pages. The squid proxy is up, and working accordingly, denying and allowing what's needed to who's needed. BUT! Thunderbird and Outlook didn't work, so in less than 10 minutes I was forced to fall back.
I read googling a lot, and searching a bit here about socks, which seems to be what I need but also that squid is already a socks proxy. Web pages were the concern, it's not needed that other stuff is authenticated, it might as well be transparent for Outlook, Thunderbird and other programs *for example, it's not needed to block a Warcraft III game, though, allowing it explicitly is not the point either* but as of now, none can connect *haven't actually tried Warcraft though, but stuff like Adobe's updater didn't work either and I recall someone mentioned Windows Live messenger didn't either* The Squid Proxy is a CentOS.
I am trying to install a router on my CentOS 5 box, while i have properly configured IP address, Subnet, Default GW and DNS, I am at the point of trying to set up the Proxy. I have added a line: "proxy=http:ip_address:8080/" to the file of "/etc/yum.conf" The Proxy server here does not require any username nor password however I still cannot ping any website, while I tried to ping 74.125.45.100 (google.com) it returns the following message:
[Code]....
I am configuring a proxy server in my desktop, which in turn passthough a proxy ( parent proxy ). I have added following line for this
cache_peer proxy.tcs.com parent 8080 0 proxy-only default
But for parent proxy, we have to specify username and password in this line, I am confused here.
login=userassword | PASS | *assword
Here where I have to enter username and password ?
I got a problem about network proxy setting. With the graphics setting interface, I set auto proxy with the URL address but it is weird that the setting only work with eth1(wireless), doesn't work with etho(wired). however my wireless driver is always a problem for Linux. i also tried export http_proxy= XXXXX:8080 it still doesn't work at all.
View 2 Replies View Relatedhow to lock down individual users from setting a proxy server. Its a server not a WS so it should never go to the internet. I want to lock down the system side and firefox 5 settings.
View 14 Replies View Relatedi must make this work with the use of virtual pc's. I have vm player and installed fedora ( the latest version ) and one xp . So i have 2 virtual pc's. I'm making it simple for start so i can add more pc's when i see that it is working. I have setup a dhcp server at the fedora virtual pc. The fedora virtual pc is like a soho router. The xp pc is getting ip from dhcp while the fedora one has a static one.
My pc is behind an adsl router. Both virtual pc's can see each other which means i have no connectivity issues.Im trying to setup a squid proxy ( transparent one ) so for example the xp pc can access porn sites and such. I used all required configuration for the squid to work and started the service. Ive also inserted with iptables the commands to forward all incoming port 80 packets to port 3128 ( the squid ). It doesnt seems to be working and i thik i know why but i dont know how to fix it.
Because the xp has a gateway at 192.168.1.1 ( the adsl router ) packets go directly to it and not to the soho router ( fedora virtual pc as i intend to do) What can i do to solve this problem ? How can i forward all packets to go to the fedora virtual pc first and then the fedora pc to forward them (if necessary) to the adsl router? PS. I used Bridged connection on the networking configutration on the vmware player ! If you also want i can post the code for squid or iptables if needed !
I my office I have configure dhcp in my centos sever
eth0 for adsl-setup
eth1 for lan 172.16.0.4
I am using squid proxy server for internet access,
in my office all are using laptop through wifi , so i need to configure the browser proxy setting for accessing internet.
is there any way to setup automatically get the proxy setting as dhcp. I have tried transparent proxy but no success.
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]....
I've been trying to make myself anonymous, but I cant find 'Tor' anywhere, tried 'yum & kpackagekit' neither have it. I did find 'Privoxy', installed it, set proxy for HTTP and HTTPS in Firefox, but it says 'unknown proxy' when I try to use it! I've been to the Privoxy web site and read through the 'User manual', but most of it is 'geek' to me!
View 8 Replies View RelatedI 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 ?
I've been doing some security testing in a lab environment that does not have direct internet access. It's actually a little complicated: From home to connect to my lab machine, I
1. SSH to machineA.
2. SSH from machineA to machineB
where machineB is my actual lab machine. neither machineA or machineB allow anything other than SSH, and machineB is only accessible from machineA. However, I really need to run yum on machineB. I have managed to get internet access via Firefox on machineB by creating a series of SOCKS proxy via SSH.
1. machineB: ssh -L 12345:localhost:12345 user@machineA
2. machineA: ssh -D 12345 user@machineC
3. machineB: configure firefox to use socks proxy, localhost, 12345
where machineC has internet without limits placed. This is the only way I have managed to get internet working. I tried using ssh -L all the way from machineB->machineA->machineC but it didn't work (even when setting Firefox to use http proxy). I tried using ssh -D all the way, but again that doesn't work either.
I do have access via Firefox using socks proxy. However, yum update fails to retrieve mirror list, and from what I have found I don't believe yum supports socks proxy directly. Instead, it uses http_proxy / ftp_proxy. how to get yum to go out over the SOCKS proxy I created (same one using in Firefox)? It seems like since Firefox can access the internet and everything without issues, i should be able to get yum to tunnel through the same connection to access everything.... I tried
[URL]
is there a way to force wget to use a specific squid proxy when making connections ? - I use a squid proxy normally, but I need this specific request to go via a different one. I dont have to use wget, I just need a way to test squid's blocking rules by requesting various pages through it, this proxy is not my normally proxy on the network and so I cant rely on wget taking the environment variable.
Also, this is as part of a script, so anything that avoids editing wget config files would be best. - Perhaps curl can do this ? - currently im using the exit code of wget to determine if the connection was made.
I am working on fc10. I connect to internet using two connections: with proxy and without proxy. Initially I had some problem in configuring yum for proxy and I resolved it by creating files proxy.sh and proxy.csh in /etc/profile.d with the required details (export_proxy).Now when I connect to my connection without proxy I have some problems .Whenever I try to do yum update I get the following error:
"[URL]: [Errno 12] Timeout: <urlopen error timed out> Trying other mirror. Error: failure: repodata/primary.xml.gz from adobe-linux-i386: [Errno 256] No more mirrors to try." what changes do I need to make in order to use yum in the connection without proxy?
At the moment I have a proxy and all the users have to configure it in the browser to access internet. I want to make the users able to browse even without configuring the proxy in the browser. but eventually it should be received in the proxy rather than giving an error to the user. I heard with transparent proxy I can redirect all the traffic from a particular network, to a particular host( ie my existing proxy).
I tried this using firewall rules. But then the existing proxy doesn't understand the protocol of the requests. I heard that it should be in the kind of proxy protocol.
I've setup squid proxy st time on centos 5.This is my current setup.squid.conf:Quote:acl our_networks src 192.168.10.0/24 ttp_access allow our_networksQuote:
internet -- modem -- Firewall --switch--squid proxy (192.168.10.100)
--client workstation ((192.168.10.200)
(client workstation is connected to the same switch as the squid proxy)
[code]...
Have installed Suse 11.2. how can I change the calendar format dd/mm/yyyy and how to configure the system to sync.from an ntp?
View 1 Replies View RelatedI have a ubuntu server , can advise if I want to change the network setting ( eg. IP address , gateway address etc ) , which one is the configuration file ? for example , if I want to change eth0 setting , what file I should update ?
View 10 Replies View Related