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  • iptables configuration to work with apache2 mod_proxy

    - by swdalex
    Hello! I have iptables config like this: iptables -F INPUT iptables -F OUTPUT iptables -F FORWARD iptables -P INPUT DROP iptables -P OUTPUT DROP iptables -P FORWARD DROP iptables -A INPUT -p tcp --dport 22 -j ACCEPT iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A OUTPUT -p tcp --sport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 443 -j ACCEPT iptables -A OUTPUT -p tcp --sport 443 -j ACCEPT Also, I have apache virtual host: <VirtualHost *:80> ServerName wiki.myite.com <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass / http://localhost:8901/ ProxyPassReverse / http://localhost:8901/ <Location /> Order allow,deny Allow from all </Location> </VirtualHost> My primary domain www.mysite.com is working well with this configuration (I don't use proxy redirect on it). But my virtual host wiki.mysite.com is not responding. Please, help me to setup iptables config to allow wiki.mysite.com working too. I think, I need to setup iptables FORWARDING options, but I don't know how. update: I have 1 server with 1 IP. On server I have apache2.2 on 80 port. Also I have tomcat6 on 8901 port. In apache I setup to forwarding domain wiki.mysite.com to tomcat (mysite.com:8901). I want to secure my server by disabling all ports, except 80, 22 and 443.

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  • Azure load-balancing strategy

    - by growse
    I'm currently building out a small web deployment using VM instances on MS Azure. The main problem I'm facing at the moment is trying to figure out how to get the load-balancing to detect if a particular VM has failed and not route traffic to that VM. As far as I can tell, there are only only two load-balancing options: Have multiple VMs (web01, web02, web03 etc.) within the same 'cloud service' behind a single VIP, and configure the endpoints to be load balanced. Create multiple 'cloud services', put a single web VM in each and create a traffic manager service across all these services. It appears that (1) is extremely simplistic and doesn't attempt to do any host failure detection. (2) appears to be much more varied, but requires me to put all my webservers in their own individual cloud service. Traffic manager appears to be much more directed at a geographic failover scenario, where you have multiple cloud services across different regions. This approach also has the disadvantage in that my web servers won't be able to communicate with my databases on internal IP addresses, unlike scenario (1). What's the best approach here?

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  • OpenVPN: ERROR: could not read Auth username from stdin

    - by user56231
    I managed to setup openvpn but now I want to integrate a user/pass authentication method so, even though I haven't added the auth-nocache in the server config, whenever I try to connect it returns with the following message on the client side: ERROR: could not read Auth username from stdin My server.conf file contains basic stuff, everything works up untill I try to implement this for of authentication. mode server dev tun proto tcp port 1194 keepalive 10 120 plugin /usr/lib/openvpn/openvpn-auth-pam.so login client-cert-not-required username-as-common-name auth-user-pass-verify /etc/openvpn/auth.pl via-env ca /etc/openvpn/easy-rsa/2.0/keys/ca.crt cert /etc/openvpn/easy-rsa/2.0/keys/server.crt key /etc/openvpn/easy-rsa/2.0/keys/server.key dh /etc/openvpn/easy-rsa/2.0/keys/dh1024.pem user nobody group nogroup server 10.8.0.0 255.255.255.0 persist-key persist-tun #persist-local-ip status openvpn-status.log verb 3 client-to-client push "redirect-gateway def1" push "dhcp-option DNS 10.8.0.1" log-append /var/log/openvpn comp-lzo I searched all over the net for a solution and all answers seems to be related to the auth-nocache param which I haven't set. The directive auth-user-pass-verify /etc/openvpn/auth.pl via-env points to a script which is executed to perform the authentication. A false authentication should result in a exit 1 while a true one should result with exit 0. For testing, that script auth.pl returns exit 0 no matter what the input is but it seems that the file is not executed before the error raises. auth.pl file contents: #!/usr/bin/perl my $user = $ENV{username}; my $passwd = $ENV{password}; printf("$user : $passwd\n"); exit 0; Any ideas?

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  • Most transparent way to connect two LANS using a WET610N Wireless Bridge

    - by Spencer Ruport
    I have two wired systems hooked to a Linksys WRT54GL wired/wireless router which is also hooked to my internet. I'll refer to this as LAN1. I have two more systems in another room that are connected wirelessly. Recently I decided I would much rather have another wired LAN in the other room and use a bridge to connect them. This would be LAN2. Prior to hooking up the device I assumed that the ethernet side of the bridge would have a DHCP server so that I could simply hook it up to a switch and I'd be on my way. However that isn't the case which leads me to believe I'll have to add one to LAN2 correct? Or is there some way to have the DHCP from LAN1 also hand out IP addresses to LAN2? If I do need a DHCP device on LAN2 what would be best? Another hardware device or should I just install some DHCP software on one of the systems (since they're both on 24/7 anyway). Any recommendations would be appreciated. :)

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  • fail2ban log parsing too slow on Raspberry Pi - options? [migrated]

    - by Gordon Morehouse
    I'm running fail2ban on a Raspberry Pi at 950MHz which I cannot overclock further. The Pi is occasionally subject to SYN floods on particular ports. I've set up iptables to throttle the rate of SYNs on the port of interest; when the throttle limits are exceeded, hosts which send SYNs are dropped into the REJECT chain and the particular SYN packet which exceeded the limit is logged. fail2ban then watches for these logged SYNs and, after seeing a few, temporarily bans the host for a short time (this is a transient issue in the app I'm working with). The problem is that the SYN floods can occasionally reach rates which are too fast for fail2ban to keep up with; I'll see 20-40 log messages per second, and eventually fail2ban falls behind and becomes ineffective. To add insult to injury, it continues consuming a LOT of CPU as it tries to catch up. I have verified that DROP chained packets from hosts already banned by fail2ban are not logged, and thus do not add to its load. What are my options here? I have a few ideas, but no clear path forward. Could I make the log-parse regex "easier" so it takes fewer cycles? Would using iptables --log-prefix to put a token near the start of the log message, and/or otherwise simplifying/altering the fail2ban regex help? Here is the current fail2ban config line containing a regex: failregex = kernel:.*?SRC=(?:::f{4,6}:)?(?P<host>[\w\-.^_]+) DST.*?SYN Is there a faster way for fail2ban to watch for the packets exceeding the limits than parsing kern.log? Could fail2ban be run under PyPy instead of CPython with minimal nonstandard wizardry (the OS is Raspbian 7, so, mostly Debian 7)? Is there something better than fail2ban that I could use to watch for the packets which exceed the SYN limits, and after N exceeds in X seconds, temporarily put the offending IP into the iptables DROP bucket, and take it out when the ban timer expires? Again, I'd vastly prefer a solution that uses as much software available in Debian as possible, though I can build Debian packages in a pinch.

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  • Advice needed for a home network setup (hardware & software) to handle many clients and potentially heavy traffic

    - by posdef
    I have recently decided to re-structure the home network of our flatshare here. Here's a quick outline of the situation. I envision to have the following 4 devices connected to the router via cable: Xbox 360 IP phone Printer QNAP server (Web, File and Multimedia) We are three people living here, so on top of that there will be to 5-6 computers/mobile devices connecting as wireless clients. My goal is to be able to transfer files (when needed) between the computer and the Multimedia server, which I can reach via 360 and play on the TV. I also would like to keep a high level of security; right now I have the encryption on WPA2 and MAC filtering. I don't believe the web server will get heavy traffic, though I would like to have it responsive. Likewise, I don't have a habit of downloading via torrent etc, but I greatly appreciate my network being responsive and fast, especially when I am browsing or streaming high quality media. Now my questions are: is this setup feasible? smart? efficient? can this be improved somehow? my current router (D-Link DI624) and the previous one (DI-524) used to have spontaneous drops in network, which I find highly irritating. I don't believe in my router, especially now that it completely crashed when I was test-running the setup by transferring a large media file to server while xbox was playing music from the server, and two computers browsing the net. Do I need to get new hardware, if so, any recommendations for a reliable and fast router?

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  • Dynamically updating DNS records with NSUPDATE fails

    - by Thuy
    I've got my own nameserver ns3.epnddns.com and domain epnddns.com I wanted to try and update the records dynamiclly from home using nsupdate but when I run nsupdate -k Kwww.epnddns.com.+157+17183.key i get the following errors Kwww.epnddns.com.+157+17183.key:1: unknown option 'www.epnddns.com.' Kwww.epnddns.com.+157+17183.key:2: unexpected token near end of the file Kwww.epnddns.com.+157+17183.{private,key}: unexpected token Not sure why I get these errors, I'll post my complete setup. Generated keys on my home pc, using dnssec-keygen -a HMAC-MD5 -b 128 -n HOST www.epnddns.com. created /var/named/ and put the keys there and chmod them to 600. transfered the keys to my nameserver ns3.epnddns.com, created /var/named/ ,put the keys there and chmod them to 600 made dnskey.conf in /var/named and added key www.epnddns.com. { algorithm hmac-md5; secret "my secret from they keys=="; }; chmod to 600 then in /etc/bind/named.conf.local include "/var/named/dnskeys.conf"; zone "epnddns.com" { type master; file "/etc/bind/zones/epnddns.com.zone"; allow-transfer { myhomeip; }; //its my home ip so not in the same network allow-update { key www.epnddns.com.; }; }; I restarted bind without any error messages so it seems to be working on the nameserver at least. But on my homepc when i try and run the nsupdate i get those error messages. Thanks in advance for any help or insightful advice.

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  • VirtualHost not using correct SSL certificate file

    - by Shawn Welch
    I got a doozy of a setup with my virtual hosts and SSL. I found the problem, I need a solution. The problem is, the way I have my virtual hosts and server names setup, the LAST VirtualHost directive is associating the SSL certificate file with the ServerName regardless of IP address or ServerAlias. In this case, SSL on www.site1.com is using the cert file that is established on the last VirtualHost; www.site2.com. Is this how it is supposed to work? This seems to be happening because both of them are using the same ServerName; but I wouldn't think this would be a problem. I am specifically using the same ServerName for a purpose and I really can't change that. So I need a good fix for this. Yes, I could buy another UCC SSL and have them both on it but I have already done that; these are actually UCC SSLs already. They just so happen to be two different UCC SSLs. <VirtualHost 11.22.33.44:80> ServerName somename ServerAlias www.site1.com UseCanonicalName On RewriteEngine On RewriteOptions Inherit </VirtualHost> <VirtualHost 11.22.33.44:443> ServerName somename ServerAlias www.site1.com UseCanonicalName On SSLEngine on SSLCertificateFile /usr/local/apache/conf/ssl.crt/cert1.crt SSLCertificateKeyFile /usr/local/apache/conf/ssl.key/cert1.key SSLCertificateChainFile /usr/local/apache/conf/chain/gd_bundle.crt RewriteEngine On RewriteOptions Inherit </VirtualHost> <VirtualHost 55.66.77.88:80> ServerName somename ServerAlias www.site2.com UseCanonicalName On RewriteEngine On RewriteOptions Inherit </VirtualHost> <VirtualHost 55.66.77.88:443> ServerName somename ServerAlias www.site2.com UseCanonicalName On SSLEngine on SSLCertificateFile /usr/local/apache/conf/ssl.crt/cert2.crt SSLCertificateKeyFile /usr/local/apache/conf/ssl.key/cert2.key SSLCertificateChainFile /usr/local/apache/conf/chain/gd_bundle.crt RewriteEngine On RewriteOptions Inherit </VirtualHost>

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  • Apache2, Tomcat6, and proxy redirects

    - by Randal Hale
    So here is my question - go easy and slow. I'm a GIS Consultant and general hack with linux. I inherited this volunteer job essentially because I knew more than the rest of the team - or the rest of the team isn't as stubborn as I am... With that said a number of people have been mucking around in the server before I got involved so I've been cleaning up a lot of things. The domain names have been changed to protect the innocent. I have a server running Apache2 (port 80) and tomcat6 (8080) running on ubuntu server 10.4. There is a virtual host on Apache2 called "Runner" (the domain is runner.org). I have mod_proxy loaded. I am trying to redirect everyone that visits runner.org to http://some.ip.address:8080/openrunner-webapp/ So far I've gotten runner.org assigned to the apache2 server. Someone set up a redirect in the httpd.conf file but I believe it needs to go into the virtualhost. I tried setting the redirect in the virtualhost as: *ProxyPass / http://localhost:8080/openrunner-webapp All that does is show me the root of the Apache webserver. Anyway I'm stuck

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  • IIS running but not serving content

    - by Kyle
    I have an internal dev server running Windows 2k8 R2 with the Web and FTP Server roles set up which won't serve any content at all. Trying to connect from another host via telnet yields 'connection failed': c:\>telnet devserver 80 Connecting To devserver...Could not open connection to the host, on port 80: Conn ect failed Using netstat -an | find "80" on the dev server returns no connections on port 80 (a few on 1801, etc) tcpview confirms this, listing no open connections on port 80. The following services related to the Web role are running: World Wide Web Publishing Service Application Host Helper Service Microsoft FTP Service (ftp connections to port 21 are granted) Windows Process Activation Service The default website bindings are: Type Host Name Port IP Address Binding Information http 80 * net.tcp 808:* net.pipe * net.msmq localhost msmq.formatname localhost When setting up a new application under the default site, the test function passes both connection/authorisation only if the 'connect as' user is local admin, otherwise the test errors with 'invalid application path'. At no point is the W3SVC service PID bound to port 80 (it is running and bound to 21 for ftp). There are no W3SVC log directory at c:\inetpub\logs\LogFiles\ (only FTPSVC2), and no HTTPERR directory at c:\windows\system32\ or c:\windows\system32\logfiles\. There do not appear to be any related errors in the event logs. I'd really appreciate any thoughts on be a good place dig into what's (not) going on here!

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  • Samba server NETBIOS name not resolving, WINS support not working

    - by Eric
    When I try to connect to my CentOS 6.2 x86_64 server's samba shares using address \\REPO (NETBIOS name of REPO), it times out and shows an error; if I do so directly via IP, it works fine. Furthermore, my server does not work correctly as a WINS server despite my samba settings being correct for it (see below for details). If I stop the iptables service, things work properly. I'm using this page as a reference for which ports to use: http://www.samba.org/samba/docs/server_security.html Specifically: UDP/137 - used by nmbd UDP/138 - used by nmbd TCP/139 - used by smbd TCP/445 - used by smbd I really really really want to keep the secure iptables design I have below but just fix this particular problem. SMB.CONF [global] netbios name = REPO workgroup = AWESOME security = user encrypt passwords = yes # Use the native linux password database #passdb backend = tdbsam # Be a WINS server wins support = yes # Make this server a master browser local master = yes preferred master = yes os level = 65 # Disable print support load printers = no printing = bsd printcap name = /dev/null disable spoolss = yes # Restrict who can access the shares hosts allow = 127.0.0. 10.1.1. [public] path = /mnt/repo/public create mode = 0640 directory mode = 0750 writable = yes valid users = mangs repoman IPTABLES CONFIGURE SCRIPT # Remove all existing rules iptables -F # Set default chain policies iptables -P INPUT DROP iptables -P FORWARD DROP iptables -P OUTPUT DROP # Allow incoming SSH iptables -A INPUT -i eth0 -p tcp --dport 22222 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 22222 -m state --state ESTABLISHED -j ACCEPT # Allow incoming HTTP #iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT #iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT # Allow incoming Samba iptables -A INPUT -i eth0 -p udp --dport 137 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p udp --sport 137 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p udp --dport 138 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p udp --sport 138 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --dport 139 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 139 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --dport 445 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 445 -m state --state ESTABLISHED -j ACCEPT # Make these rules permanent service iptables save service iptables restart**strong text**

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  • Window 7 image in vmware will allow network connection out but not http

    - by Ormis
    I am currently trying to create a set of images to deploy on my network, but I've run in to a snag. When I create my own Windows 7 image I can successfully use NAT for connecting to the network but whenever I try to access a webpage I get nothing. To be more specific, All firewalls/iptables are disabled on my host machine, my virtual machine, and my network. I can do lookups and all addresses respond correctly (i'm even using Google's DNS). On the host OS i have full connectivity. On the virtual machine I can ping any device I want and all addresses resolve correctly. Within a browser I cannot reach any page via hostname or IP. I feel almost like port 80 is being blocked but i can't find any reason this would be the case. If anyone has had this occur before, I would love some insight to the problem. I understand this question is a bit out of the norm for stackoverflow, but I've run out of ideas. Thank you for any help you can provide.

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  • Postfix rewrite sender: why doesn't this work

    - by Nick Coleman
    I have server A with an IP address only and a dummy FQDN (on the basis all machines should have a FQDN): pants.net.invalid. All mail is relayed through another server elsewhere, which works fine. On server A, Postfix rewrites the sender address with smtp_generic_maps = hash:/etc/postfix/generic. According to the Rewrite manual at http://www.postfix.org/ADDRESS_REWRITING_README.html#remote, this should rewrite all outgoing external mail's Sender address: $ cat /etc/postfix/generic @pants.net.invalid [email protected] but it does not. postmap -q [email protected] returns nothing. This works: [email protected] [email protected] It seems as though it is doing regex matching even though I specify type hash:. Clearly I am misunderstanding the manual. I don't want to use regex or pcre expressions because there are only a couple of users (root and two others) and I don't want the overhead. I can specify the users exactly and it works. But, I would like to know what I am misunderstanding for future reference. Thanks.

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  • How to handle server failure in an n-tier architecture?

    - by andy
    Imagine I have an n-tier architecture in an auto-scaled cloud environment with say: a load balancer in a failover pair reverse proxy tier web app tier db tier Each tier needs to connect to the instances in the tier below. What are the standard ways of connecting tiers to make them resilient to failure of nodes in each tier? i.e. how does each tier get the IP addresses of each node in the tier below? For example if all reverse proxies should route traffic to all web app nodes, how could they be set up so that they don't send traffic to dead web app nodes, and so that when new web app nodes are brought online they can send traffic to it? I could run an agent that would update all the configs to all the nodes, but it seems inefficient. I could put an LB pair between each tier, so the tier above only needs to connect to the load balancers, but how do I handle the problem of the LBs dying? This just seems to shunt the problem of tier A needing to know the IPs of all nodes in tier B, to all nodes in tier A needing to know the IPs of all LBs between tiers A and B. For some applications, they can implement retry logic if they contact a node in the tier below that doesn't respond, but is there any way that some middleware could direct traffic to only live nodes in the following tier? If I was hosting on AWS I could use an ELB between tiers, but I want to know how I could achieve the same functionality myself. I've read (briefly) about heartbeat and keepalived - are these relevant here? What are the virtual IPs they talk about and how are they managed? Are there still single points of failure using them?

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  • Esx servers in a DMZ

    - by James
    I have two ESX 3.5 servers in a DMZ. I can access these servers on any port from my lan via a VPN. Servers in the DMZ are unable to initiate connections back to the lan, for obvious reasons. I have a vCenter server on my lan and can initially connect to the esx servers fine. However the esx servers then try to send a hearth beat back to the vCenter server on udp/902 obviously this will not get back to the vCenter server, which then marks the ESX servers as not responding and disconnects. There are two broad solutions I can think of; 1) Try to tell vCenter to ignore not getting heart beats. The best I can do here is delay the disconnect by 3 mins. 2) Try some clever network solution. However again I am at loss. Note: The vCenter server is on a lan, and cannot be given a public IP, so firewall rules back will not work. And also I cannot setup a VPN from the DMZ to the lan. **I am adding the following, explanation that I added to the comments Ok maybe this is the bit that I not explaining well. The DMZ is on a remote site, an entirely independent network (network 1). The vCenter server is on our office lan (network 2). Network 2 can connect to any machine on any port on network 1. But network 1 is not allowed to initiate a connection to network 2. Any traffic destined to network 2 from network 1 gets dropped by the firewall as it is traffic to a non-routable address. The only solution I can think of is setting up a VPN from network 1 to network 2, but this is not acceptable So any clever folk out there any ideas? J

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  • 2 nics. 2 Defaults Gateways

    - by andre.dias
    Here is my scenario: i have this server with 2 nics, each one with different IPs, connected to differents routers. Almost everything is configured whe way i need. Traffic coming from eth0 exits using eth0, traffic coming from eth1 exits using eth1. And there is a default gateway configured. $route: default IP 0.0.0.0 UG 0 0 0 eth0 With this configuration, the traffic generated in the server is going out using eth0 (lynx www.google.com for example). The problem is: the Internet link from eth0 went down today. The traffic coming from eth1 was ok...no problem. But the traffic generated in the server was a problem...the default gateway was out...no access do the Internet anymore (no more lynx www.google.com) So i added a new default gateway configuration, pointing to eth1. For 30 minutes i kept that way...2 default gateways, but just one was "working"...and everything was working just fine. But then i removed de eth0 gateway entry because, well, 2 default gateways is kind of weird. My question: is there any problem on keeping these 2 default gateways, one for each? So i don´t need to do nothing when one link go down again? $route: default IP1 0.0.0.0 UG 0 0 0 eth0 default IP2 0.0.0.0 UG 0 0 0 eth1

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  • Weird connectivity issue wtih USB Wifi stick.

    - by Carlos Nunez
    Hi, all! I'm not sure if this is the appropriate place to throw this question out there, but I'll give it a shot. I'm setting up two PCs, and I've been having massive troubles getting a USB wireless dongle working. I have two Sony VAIOs (Windows XP, SP2) that I found second-hand, and since they will be in a location too far to connect by Ethernet (no, can't do patch panels here :p), I need to connect them by wireless. Easiest and cheapest way to do that at the moment is by using two USB wireless sticks that I've had for a while, but never used. One of the computers is using a SMC-manufactured card, whereas the other is using a Belkin F5D7050. The box with the SMC card can see and authenticate with my router just fine, and has no problem obtaining a DHCP lease. The box with the Belkin, on the other hand, isn't so lucky. While it can see my router and associate with it, it will not obtain a DHCP-issued address. Worse, when I assign a static IP address to the NIC, it can ping the entire network and access the internet (meaning it can authenticate with the router), but no computer can ping to it UNLESS that computer pinged the computer that's pinging it first. Confused? Well, so am I. Has anyone had this issue before? Is this just a sign of a bad card? (For the moment, I have it connected by Ethernet, as I haven't moved it yet. However, this will be a problem when I set it up in its new home later.) Thanks! -Carlos Nunez

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  • SPF record for Gmail?

    - by Chris
    I have DNS, with a SPF TXT record, configured for a domain name. The primary user of the domain name now needs to be able to send both from our SMTP servers, and also from her GMail account. I've seen all the information about adding "include:_spf.google.com" to the SPF TXT record, but, as I look into it, it appears that record is outdated. In particular, I had the user send me a test message, and note that it was: Received: from mail-la0-f50.google.com (mail-la0-f50.google.com [209.85.215.50]) However, _spf.google.com doesn't list that IP address: $ dig +short _spf.google.com txt "v=spf1 ip4:216.239.32.0/19 ip4:64.233.160.0/19 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:209.85.128.0/17 ip4:66.102.0.0/20 ip4:74.125.0.0/16 ip4:64.18.0.0/20 ip4:207.126.144.0/20 ip4:173.194.0.0/16 ?all" (Note that a 209.85.21*8*.0 network is listed, but not 209.85.21*5*.0.) Is there a better way to enable sending from GMail? This user sends to at least one recipient with a strict SPF policy that bounces mail not from a designated host... Many thanks!

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  • fax server farm architechture

    - by Brian Postow
    I'm not sure this is the right forum for this, but it's not Stackoverflow so... I'm trying to figure out an architecture to solve the following problem, maybe someone here can help: I have a T1 with 23 fax lines coming into the building. I have a computer (Macintosh XServe) running Hylafax. If I had one POTS line, I'd be done. However, I have no idea how to get the T1 into the Mac... Options I've considered: some sort of PCI T1-modem (Does that exist?) Splitting the T1 into 23 POTS lines and then connecting 23 analog modems to the mac, either via an external modem bank (Do they still make those?) or via some sort of external PCI bank, which will allow me to use more than 2 4-port modem cards. Either the T1 or the split POTS lines going into some intermediate device and then transfering the images over IP, or USB to the mac. Really, any other option I can come up with This has GOT to be a problem that someone has already solved, right?

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  • VPN on OSX disconnects after precisely 2 minutes and 30 seconds on specific network

    - by Tyilo
    When connecting to my own VPN server on a specific network, called public-network, my Mac disconnects the VPN connection after 2 minutes and 30 seconds. I have performed several tests and this is the result: It works fine until the 2:30 mark It doesn't matter which Mac I use, it still disconnects It doesn't matter which client I use, all of the following does the same: OSX system client, HMA! Pro VPN and Shimo It doesn't matter which protocol I use, at least all of these protocols does the same: PPTP, OpenVPN and L2TP over IPSec The same thing happens using my own VPN server and HMA!'s VPN server. All other clients (Windows/iPhone) can use any of these VPN servers and protocols without problem on public-network On OSX, all the protocols, clients and servers works fine on any other network So it seems that it is the combination of OSX, VPN & public-network that causes this. This is the syslog from my VPN server, when the disconnection happens: Feb 2 12:04:32 raspberrypi pptpd[31400]: CTRL: EOF or bad error reading ctrl packet length. Feb 2 12:04:32 raspberrypi pptpd[31400]: CTRL: couldn't read packet header (exit) Feb 2 12:04:32 raspberrypi pptpd[31400]: CTRL: CTRL read failed Feb 2 12:04:32 raspberrypi pptpd[31400]: CTRL: Reaping child PPP[31401] Feb 2 12:04:32 raspberrypi pppd[31401]: Hangup (SIGHUP) Feb 2 12:04:32 raspberrypi pppd[31401]: Modem hangup Feb 2 12:04:32 raspberrypi pppd[31401]: Connect time 2.5 minutes. Feb 2 12:04:32 raspberrypi pppd[31401]: Sent 3963649 bytes, received 362775 bytes. Feb 2 12:04:32 raspberrypi pppd[31401]: MPPE disabled Feb 2 12:04:32 raspberrypi pppd[31401]: Connection terminated. Feb 2 12:04:32 raspberrypi pppd[31401]: Exit. Feb 2 12:04:32 raspberrypi pptpd[31400]: CTRL: Client <ip-adress> control connection finished

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  • Sharing two SSL wildcard certificates in memory in nginx

    - by hvtilborg
    I have an nginx server running with two IP addresses, say 1.2.3.4 and 4.3.2.1. Besides there are two wildcard SSL certificates for *.example.net (i.e. wc1, pointing to 1.2.3.4) and *.sub.example.net (i.e. wc2, pointing to 4.3.2.1). The nginx docs mention that you can share a wildcard certificate between server instances like this: ssl_certificate wc1.crt; ssl_certificate_key wc1.key; server { listen 1.2.3.4:443; server_name www.example.net; ssl on; ... } server { listen 1.2.3.4:443; server_name test.example.net; ssl on; ... } However, I was wondering whether this same construct is possible to use with the second wildcard certificate too. Both domains have around 500 subdomains. Do they not get mixed up, since the ssl_certificate construct is now global?

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  • exim4 to relay emails

    - by Matthieu
    I have exim4 installed on a Linux box. The basics work fine and I can send email from that machine without any problem to whatever email address. I also have a printer/scanner which is capable to send scans as emails. It needs an SMTP gateway to be able to do that. So I give the IP address of that Linux box, changed the configuration a little bit but still cannot get it to work. After I run dpkg-reconfigure exim4-config, here is what I get in /etc/exim4/update-exim4.conf.conf : dc_eximconfig_configtype='internet' dc_other_hostnames='' dc_local_interfaces='127.0.0.1;192.168.2.2' dc_readhost='' dc_relay_domains='mycompanyemail.com' dc_minimaldns='false' dc_relay_nets='192.168.2.0/24' dc_smarthost='' CFILEMODE='644' dc_use_split_config='false' dc_hide_mailname='' dc_mailname_in_oh='true' dc_localdelivery='mail_spool' My problem is that with this configuration, I can only send to emails @mycompanyemail.com... It says I can use wildcard, but when I do that, the '*' is replaced by whatever filename is in the directory where I run all that. How can I configure it to be able to send emails with any domain ? Or am I doing it wrong ? EDIT : here is the part of the log that's causing trouble : 2011-08-03 16:28:18 H=(NPI2D389C) [192.168.2.20] F=<[email protected]> rejected RCPT <[email protected]>: relay not permitted The first part ([email protected]) does not matter. I changed the email address. The point is that if this email is @mycompanyemail.com then everything works fine. Anything else does not work. I could add gmail.com, but I am looking to have any domain working...

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  • can't figure out why apache LDAP auth fails

    - by SethG
    Suddenly, yesterday, one of my apache servers became unable to connect to my LDAP (AD) server. I have two sites running on that server, both of which use LDAP to auth against my AD server when a user logs in to either site. It had been working fine two days ago. For reasons unknown, as of yesterday, it stopped working. The error log only says this: auth_ldap authenticate: user foo authentication failed; URI /FrontPage [LDAP: ldap_simple_bind_s() failed][Can't contact LDAP server], referer: http://mysite.com/ I thought perhaps my self-signed SSL cert had expired, so I created a new one for mysite.com, but not for the server hostname itself, and the problem persisted. I enabled debug-level logging. It shows the full SSL transaction with the LDAP server, and it appears to complete without errors until the very end when I get the "Can't contact LDAP server" message. I can run ldapsearch from the commandline on this server, and I can login to it, which also uses LDAP, so I know that the server can connect to and query the LDAP/AD server. It is only apache that cannot connect. Googling for an answer has turned up nothing, so I'm asking here. Can anybody provide insight to this problem? Here's the LDAP section from the apache config: <Directory "/web/wiki/"> Order allow,deny Allow from all AuthType Basic AuthName "Login" AuthBasicProvider ldap AuthzLDAPAuthoritative off #AuthBasicAuthoritative off AuthLDAPUrl ldaps://domain.server.ip/dc=full,dc=context,dc=server,dc=name?sAMAccountName?sub AuthLDAPBindDN cn=ldapbinduser,cn=Users,dc=full,dc=context,dc=server,dc=name AuthLDAPBindPassword password require valid-user </Directory>

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  • How can I use two Internet connections in Ubuntu?

    - by Martin
    My goal is to be able to do something like this: curl google.com --interface ppp0 curl google.com --interface p2p2 ppp0 is a DSL connection, and p2p2 is a separate direct Internet connection. Currently I can only get one of these to work at a time. When I enable one, the other one stops working. /etc/network/interfaces: # The loopback network interface auto lo iface lo inet loopback # DSL auto p2p1 iface p2p1 inet manual auto dsl-provider iface dsl-provider inet ppp pre-up /sbin/ifconfig p2p1 up # line maintained by pppoeconf provider dsl-provider # DIRECT auto p2p2 iface p2p2 inet dhcp ifconfig: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 p2p1 Link encap:Ethernet inet6 addr: fe80::20a:ebff:fe21:99c6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 p2p2 Link encap:Ethernet inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20a:ebff:fe17:1249/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 ppp0 Link encap:Point-to-Point Protocol inet addr:53.193.231.167 P-t-P:53.193.224.1 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 10.0.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 53.193.224.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 p2p2 By default, only ppp0 works. If I run "route add default gw 192.168.1.1 p2p2" then I can use p2p2 but ppp0 stops working. If I then run "route add default gw 53.193.224.1 ppp0" then I can use ppp0 again but p2p2 stops working. What can I do to be able to use both interfaces selectively?

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  • Limit bandwith on network of computers

    - by Joseph34123
    We have network in office of approximately 10 computers sometimes when someone downloads something for work (e.g. syncing email with an attachment or Dropbox), everyone slows down. I could limit each computer in office but the problem is that we have an open WiFi network, and I cannot access the computers that use it. We have one main DSL router "Netopia 3347" and another router connected to it on wire for public wifi is "Linksys WRT110". I cannot change the setup we have and don't want to. There's 2 approaches here: Set office computers download limit in each computer and then I need to find out how I can set a download limit for the wifi network such as in the router settings. It's a Linksys router and I did not see the option for this, so maybe I need new router for WiFi? Don't bother with each computer and put some "specific hardware" or another computer before router so all traffic goes trough it and I can then assign priority maximum speed for each IP address. Question is what hardware do I need?

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