General :: SSH Uses A Keypair To Encrypt Traffic Between The Host And Client
Dec 1, 2010SSH uses a keypair to encrypt traffic between the host and client. Which key is stored by the client ?
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Networking :: Create An Account And Use It To Encrypt Traffic And Change IP?
Oct 28, 2010First post on this forum and feel a bit bad for asking a question but would really appreciate it if you guys helped out. I have been using Linux for a while now and it has become my main OS and I'm looking to purchase a VPS or Dedicated server to play around with as im starting a computer science course soon. I was wondering if anybody in this forum would guide me to any guides on setting up a VPN on the dedicated/VPS server so that I can create an account and use it to encrypt my traffic and change my IP, I have looked around for a while and have only found info on connecting to another computer through VPN to use there network and applications but I don't think that is the type of VPN I'm looking for.
View 4 Replies View RelatedNetworking :: Can OpenVPN Be Used To Hide Or Encrypt Internet Traffic?
Aug 31, 2010I have some questions about openVPN. I am wanting to hide my downloading through transmission and I'd like to know if I can use openVPN for this? Also do I need access to a server? I don't understand how it all works.
View 5 Replies View RelatedGeneral :: Crypt() Perl Function To Encrypt Password In Shell Scripts Or Encrypt Passwords?
Jan 8, 2010I Have shell script like this
Code:
#!/usr/bin/expect
set password "XXXXXXXX"
[code]...
General :: How Create Softlink In Client (host) Computer
Sep 19, 2010i want to know, how create softlink in client (host) computer.
View 2 Replies View RelatedCentOS 5 :: IRC Client - No Traffic Seen At All?
Oct 15, 2009While I was tweaking 5.3 to get it up to speed on a couple of servers, I used to make some use of IRC 9#centos). Haven't looked at it for a while. Decided to fire it up again tonite, only to find things...have changed. Now there is seems to be 2 channels: #centos and #centos-unregistered. I *was* already registered with nickserv, but that didn't seem to work anymore. Re-registered, but am still seeing no traffic at all. My irc client (chatzilla) suggests there are lots of users 'online', but still - not seeing any traffic at all.
View 5 Replies View RelatedDebian Configuration :: IPTables - Local Host Cannot Get Returning Traffic
Sep 20, 2010I have a strange iptables issues. I have just built a new Debian install and starting adding some real basic rules (see below) the problem seems to be that the localhost itself can't get any returning traffic. That is, it seems to be allowed outgoing traffic but not the connected, returning traffic. Ordinarily allowing Established Connections would resolve this, see the rule below, but it hasn't. Why this doesn't work. Removing the last DROP in the INPUT chains obviously makes the traffic work!
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -j ACCEPT -p tcp --dport 22
iptables -A INPUT -j ACCEPT -s x.x.x.x
iptables -A INPUT -j ACCEPT -s x.x.x.x
iptables -A INPUT -j ACCEPT -s x.x.x.x -p tcp --dport 80
iptables -A INPUT -j ACCEPT -s x.x.x.x -p tcp --dport 8080
iptables -I INPUT 1 -i lo -j ACCEPT
iptables -A INPUT -j DROP
Networking :: Route Traffic From A Single Host Through A Specific Interface?
Aug 21, 2010I have a linux router with 2 physical ISPs and a VPN tunnel that all my traffic passes through. I would like to setup a rule to redirect all traffic from one internal IP address (10.0.0.x) through the physical link only. My current script is as follows.
iptables -F
iptables -X
echo 1 > /proc/sys/net/ipv4/ip_forward
[code]....
My goal is to do something similar to the mangle on the tor traffic, but for an entire host.
Networking :: Monitor Current Network Traffic To A Give Host?
Oct 29, 2009is there a utility with which I can get the current traffice towards a given host, for example;
command 87.255.33.32
22000
Ubuntu Servers :: Securely Route All Traffic On The Client?
Mar 22, 2011I am running Ubuntu Server 10.10. I have installed OpenVPN using this guide I have set up everything correctly as this guide says, but I am having problems with the config file. I want to securely route all traffic on the client to the server, how ever the server will not start. My config is below:
Quote:
#################################################
# Sample OpenVPN 2.0 config file for #
# multi-client server. #
# #
# This file is for the server side #
[Code]......
The servers ip is 10.0.0.65 and I want to assign the clients the ip range of 10.0.0.200 to 10.0.0.20 When I try to start the server I get the message Fail.
Networking :: Easiest Way To Redirect External Traffic To VMWare Web Host On Same Machine?
Jul 14, 2009Have done a bit of Googling around this but got totally swamped so will try here. Basically we are running a CentOS server which hosts a number of virtual hosts under Apache. Recently I needed to set up a development environment for another site using Ubuntu and have this running and accessible on the LAN from a VMWare image. I'm using bridged networking so the VMWare machine has its own IP on the LAN subnet.
I've set up a DNS to point to the external IP of the physical host but can't figure out how to route traffic requested on this domain to the VMWare host. I've basically tried two approaches (configuring a proxy web server and reverse proxy in an httpd.conf file and mucking around with iptables forwarding rules but without success.
Ideally I'd like somesite.somewhere.com to point to the VMWare IP but I could live with a custom port on the end if thats whats required.
To throw further complication into the mix I need reliable communication between the VMWare machine and external mail relay servers in order to debug any issues with mail bouncebacks, embargos etc.
Any idea what's the easiest way to accomplish this?
Networking :: IPtables: Route Outgoing Traffic From Internal Host To Only Go A Internet Interface?
Nov 21, 2010My Ubuntu Box has 3 interfaces. eth0 (Internal 192.168.1.0/24)eth1 (External ISP DHCP)eth2 (External ISP Static IP)I need the outgoing traffic to internet for 1 of the internal pc (192.168.1.10) to only go only go through eth2
View 4 Replies View RelatedServer :: PPTP Traffic - Gre Traffic Is Being Generated During The Browsing / Reduce Traffic
Sep 27, 2009Recently I notice that when I'm connected to an vpn server (pptpd) and I'm using it as a default gateway my download and upload speed decreases almost to the half of the usual speed. I made a test using iptables in order to count how much GRE packets are generated (except the real traffic itself) in that way:
Code:
iptables -I INPUT -p gre -j ACCEPT
iptables -I OUTPUT -p gre -j ACCEPT
iptables -I FORWARD -s 172.16.10.101 -j ACCEPT
iptables -I FORWARD -d 172.16.10.101 -j ACCEPT
The first 2 rules match all GRE packets between the pptpd server and client, and the next rules - the traffic between the server and the client.
When I turn the counters to zero and begin to generate traffic (to browse, to download etc.) I see that the GRE packets are even more than these in the FORWARD chain.
So, my question is first of all is my test correct and is it true that so much gre traffic is being generated during the browsing (it becames clear that the traffic is double than if the pptpd wasn't used as a gateway) and if yes - can that traffic be reduced?
Server :: Send Traffic Down WAN Link Depending On Client IP Address Range?
Apr 15, 2011I am running Debian Squeeze with the following basic services running:DNS
DHCP
Samba
Squid
The server is setup with three NICs: eth0 (WAN1), eth1 (WAN2), and eth2 (LAN).The server addresses clients with an IP range of 10.0.30.1 - 10.0.30.254. Some clients will be set with reservations so they fall into the 10.0.40.1 - 254 range.
What I want to do is have any outgoing external traffic coming from the first range (10.0.30.0) to use WAN link 1, and any outgoing external traffic coming from the second range (10.0.40.0) to use WAN link 2.
I have sort of got something working. I have created a bare minimum transparent squid3 setup on port 3128, and set the iptables as follows:
Code:
iptables -t nat -A PREROUTING -i eth2 -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.0.0.1:3128
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128
iptables -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128
I can get internet access, however obviously it only goes through one WAN link. It also seems slower than it should be. I experimented with tcp_outgoing_address, but seemed to not be my friend.
Ubuntu :: Host A Lime/Frostwire Client On LAN?
Sep 30, 2010I want to host a frostwire/limewire client on my LAN.
View 4 Replies View RelatedNetworking :: Udp Client Not Working From Remote Host?
Apr 17, 2010i have a udp server running at port 60178. when i connect to it from localhost there is no problem. when i use the client from a remote host i am not able to connect. I changed my server firewall settings[Fedora 11] and added "udp 60178" to trusted ports but still nothing happened. I ran wireshark and observed that packets are coming to the server machine but server returns a "Port Unreachable" ICMP message and doesnt give the packet to the application.
View 3 Replies View RelatedNetworking :: VirtualBox - Connecting Host And Client
Oct 15, 2010I am trying to config linux box as router.
I have CentOS 5.5 client and host in VBox. I can't connect them (I am using bridge adapter mode) as I don't have router in between.
I just created DHCPD on host, and followed
[URL]
But that don't seem to work also. Host is 192.168.1.10 and client is 192.168.1.100 but when I ping host from client, it says Destination host unreachable.
Networking :: Install Mrtg On A Client Computer In Network And Measure The Network's Router Traffic
Sep 4, 2009I wanted to know if i can install mrtg on a client computer in network and measure the network's router traffic.i know that it can be installed on the server.
View 5 Replies View RelatedUbuntu Networking :: NX Client - Ssh: Connect To Host Port 22: Connection?
Jul 29, 2010I have a Windows machine on which NX Client has been installed. I wanted to test if I could access my Ubuntu box. The Ubuntu Box has NX Server, Node and Client installed. When I try to log in from the Windows machine using NX Client with my Ubuntu username and password I get an error connection refused.
The following service is running: OpenBSD Secure Shell server sshd How can I resolve the issue?
Networking :: Internet Connecion Sharing Between Windows Host And Client?
Apr 16, 2009I have a laptop on which i connect to internet using dialup modem.my laptop is also connected to a linux box via lan.now i want to connect to internet from the linux box, using internet connnection sharing from widows xp installed on laptop
View 8 Replies View RelatedServer :: Apache 2.0 - Setup SSL Client Authentication On Only One Virtual Host
Aug 18, 2010I was trying to setup SSL Client authentication on only one virtual host. Here is a brief excerpt sample of my conf file for the virtual host:
<VirtualHost xx.xx.xx.xx:443>
SSLRequire %{SSL_CLIENT_S_DN_O} eq "something"
SSLVerifyClient require
SSLVerifyDepth 2
</VirtualHost>
But when I try to check for syntax errors tells me SSLRequire not allowed here I do not want to add SSLRequire on the main httpd.conf because I only want it for one virtual host. The rest of the virtual hosts do not need it.
Debian :: User Cannot Download Any Files From Host Via WinsCP Or Other SFTP Client
May 26, 2015Can i block on debian that user can not download any files from host via winscp or other SFTP client ?
View 4 Replies View RelatedUbuntu Servers :: Desktop Client - How To Install LAMP On Shared Host
Jan 9, 2010I have access to a unmanaged dedicated server on the net. I am considering loading Ubuntu Server to this for web/mail/ftp serving. If I install Ubuntu Desktop to my local machine is it possible for me to administer the server using Ubuntu Desktop (using the GUI)? I connect to the net over ADSL. Any guides/advice for setting up Ubuntu as a web/mail/ftp with a key focus on keeping to secure? I know how to install LAMP but as I have root I need to learn a little more than I did when I was on a shared host.
View 1 Replies View RelatedNetworking :: Unable To Ping Host From OpenVPN Client After Port 22 Denied
Mar 28, 2010After I applied below iptables rule.. I am unable to ping the host in 172.16.1.0/24 from OpenVPN client
View 1 Replies View RelatedGeneral :: Transfer Large Number Of Files Host To Host
Oct 20, 2010I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank.I don't have space on the used host to simply gzip all the files. I've googled this and see that there may be some combination of tar and/or gzip that will let me do this with some sort of redirection.
I really need and example line of how this can be accomplished. If my explanation seems rather sparse, I can supply more details.
Ubuntu :: Internet Traffic Flow Monitor - Track Traffic Of Each Device
Apr 27, 2010We have something on our network that is reaking havoc with our content filter. I am trying to track it down, but so far I have been unsuccessful. We have approximately 500 devices in 100+ different locations spread across 9 states. Looking at each computer is not really feasible.
I need a machine that can sit in between our network and our internet connection and graphically monitor in real time and logs how much traffic each device is sending and receiving. It would need to sit inline so it has to have two nics and be able to pass traffic. The machine also needs to be transparent. Reconfiguration of our routers or workstations is not an option.
I have used ethereal and wireshark before. Ethereal may be a viable option, but wireshark seems to provide lots of information, but no practical way to make use of it. how to set up the box to be a transparent device on the network that will allow internet bound traffic to flow (freely)?
CentOS 5 Networking :: Configure Firewall - Allow And Forward All Traffic On Eth0 And Block All Traffic On Eth1 Except Ssh Ping
Sep 29, 2010I need to set up my centOS computer as a firewall in my home network. Ive got 2 interfaces, eth0 and eth1. I want to allow and forward all traffic on eth0 and block all traffic on eth1 except ssh, ping(icmp) and DNS. How do I do this? Ive tried some editing in /etc/sysconfig/iptables but no luck.
View 1 Replies View RelatedGeneral :: Ssh: Connect To Host 192.168.100.xxx Port 22: No Route To Host
Mar 9, 2011I'm trying to ssh from my laptop to my desktop (both fedora 14) over a local network. I can ping my desktop and get responses, but if I ssh to it, I receive
ssh: connect to host 192.168.100.xxx port 22: No route to host
I can ssh from the desktop to itself.
General :: Get The Ip Address Of Host Using Of Host And Nslookup Command?
Oct 20, 2010HOW TO GET THE IP ADDRESS OF HOST IN LINUX WITH USING OF HOST AND NSLOOKUP COMMAND and after getting the ip address how to assign it in the variable
View 4 Replies View RelatedGeneral :: Encrypt The Sessions In Red Hat 4.2
Feb 15, 2010How to encrypt the sessions in red hat 4.2.
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