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  • Where can I find logs for SFTP?

    - by Jake
    I'm trying to set up sftp-server but the client is getting an error, Connection closed by server with exitcode 1 /var/log/auth.log (below) doesn't help much, how can I find out what the error is? I'm running Ubuntu 10.04.1 LTS sshd[27236]: Accepted password for theuser from (my ip) port 13547 ssh2 sshd[27236]: pam_unix(sshd:session): session opened for user theuser by (uid=0) sshd[27300]: subsystem request for sftp sshd[27236]: pam_unix(sshd:session): session closed for user theuser Update: I've been prodding this for a while now, I've got the sftp command on another server giving me a more useful error. Request for subsystem 'sftp' failed on channel 0 Couldn't read packet: Connection reset by peer Everything I've found on the net suggests this id a problem with sftp-server but when I remove the chroot from sshd config I can access the system. I assume this means sftp-server is accessible and set up correctly.

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  • iptables drop packet by hex string match

    - by Flint
    I got this packet captured with tcpdump but I'm not sure how to use the --hex-string param to match the packet. Can someone show me how to do it? 11:18:26.614537 IP (tos 0x0, ttl 17, id 19245, offset 0, flags [DF], proto UDP (17), length 37) x.x.187.207.1234 > x.x.152.202.6543: [no cksum] UDP, length 9 0x0000: f46d 0425 b202 000a b853 22cc 0800 4500 .m.%.....S"...E. 0x0010: 0025 4b2d 4000 1111 0442 5ebe bbcf 6701 .%[email protected]^...g. 0x0020: 98ca 697d 6989 0011 0000 ffff ffff 5630 ..i}i.........V0 0x0030: 3230 3300 0000 0000 0000 0000 203.........

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  • Help me to set samba and apache on my Ubuntu VM from Vista, starting from ping

    - by avastreg
    Ok the title is not so clear after all, so let's start with the problem description posting some points: i'm on Win Vista i have a Virtual Box Ubuntu 9.04 server (Virtual Machine) installed in windows i'm under Active Directory (maybe helps), with network 192.168.2.x After Ubuntu installation (LAMP), i have: Ubuntu Ip set to 10.0.2.15 (dhcp) Vista pings Ubuntu and Ubuntu pings Vista (only IPs, not names) Can't connect to Apache (default install ubuntu server) at the url h**p://10.0.2.15/ On Ubuntu, testing Apache by doing 'wget http://10.0.2.15/' works Tried to setup samba, writing a share def, but nothing, i can't access from Vista to Ubuntu My scope is: Setting up samba to work on files from windows Reaching apache to test web pages Ok i'm not completely noob (but i'm on the noob way anyway) and i've tried many solutions, so please try to help me; let's look together what went wrong :)

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  • Suggestions for a SOHO/Home Asterisk system

    - by James
    I would like to buy a small embedded system that runs Linux and Asterisk. I would like two FXS ports ( to plug analogue phones into ) and one FXO port ( to plug in to my real line to allow access to the POTS ). I would like it to have a USB port to hold storage for voicemail. I really want it for home use so I would like it to be under £150 ( say $250 ), given that you can buy ADSL routers for around this much can any of them be made to run Linux and Asterisk? I don't want a PC as the power usage would be too high. I am looking for something like this ASDL router but open and able to run Asterisk or another open PBX. At worst I would like a box which had one FXO and two FXS and just made them completely available over IP to a full Asterisk system on a low power Atom system.

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  • Sendmail relay out of Amazon EC2?

    - by Stephen Belanger
    I have a site running on CentOS 5.4 through Amazon EC2. Unfortunately, Amazon has had nothing but trouble with their entire IP range getting black listed from spam tracking services regularly. I need a mail server, so I setup an smtp server elsewhere that I want to send to, but I can't just send directly to it through PHP because the direct smtp request is way too slow. What I want to do is relay through sendmail, but I've never used sendmail before, so I have no idea how to configure it. All I want is for all emails sent from localhost to be relayed to one specific external server, but I don't know how to do that. I tried to find a tutorial online, but couldn't find anything that was particularly clear as to how I go about doing that. Can anyone help me out?

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  • how to limit upload bandwidth per user in linux?

    - by Gihan Lasita
    Can anyone provide the tc command to limit upload bandwidth per user in Debian Lenny? I found that to mark packets per user with iptables I can use the following command iptables -t mangle -A OUTPUT -p tcp -m owner --uid-owner testuser -j MARK --set-mark 500 but I have no idea how to use tc update by running following commands, i managed to limit testuser upload bandwidth to 10Mbit iptables -t mangle -N HTB_OUT iptables -t mangle -I POSTROUTING -j HTB_OUT iptables -t mangle -A HTB_OUT -j MARK --set-mark 30 iptables -t mangle -A HTB_OUT -m owner --uid-owner testuser -j MARK --set-mark 10 tc qdisc replace dev eth0 root handle 1: htb default 30 tc class replace dev eth0 parent 1: classid 1:1 htb rate 10Mbit burst 5k tc class replace dev eth0 parent 1:1 classid 1:10 htb rate 10Mbit ceil 10Mbit tc qdisc replace dev eth0 parent 1:10 handle 10: sfq perturb 10 tc filter add dev eth0 parent 1:0 prio 0 protocol ip handle 10 fw flowid 1:10 now the problem is, i do not want to limit testuser's FTP bandwidth but by running above commands FTP speed also limited to 10Mbit. Regards

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  • Running a home mail server using dynamic dns [closed]

    - by Anand
    Hi, Is it possible to run an email server on my home box using dynamic dns? The scenario is, I want to auto cc all incoming and outgoing emails from my one account to another, from some server side config instead of configuring email clients for rules. I have tried Google Apps Mail but it doesn't allow auto cc of outgoing emails. After having read tons of blogs, forum messages etc (hope I have been reading the correct info :) ) the only option to achieve what I am needing is to setup my own mail server, but the cost of getting a static IP doesn't fit my budget. Please can someone point me in the correct direction. Platform doesn't matter, I can setup a Windows or Linux server. Many Thanks

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  • access VPN machine macosx same subnet

    - by matheszabi
    I would like to access the office machine, which has a fixed IP, and is available only in its local LAN. Let say 192.168.1.100. I have a VPN with username/password connection and I am trying to access the office machine from another location, i.e., another LAN, which has the same subnet: 192.168.1.50. I am using MacOSX 10.8. I have checked the "send all trafic over VPN connection, but I think it looks like it doesn't care and is searching in Local. I do not have admin privileges and can't request to make changes to the network settings in both LANs. Is there any way to connect to the desired remote machine?

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  • Tunneling HTTP traffic from a particular host/port

    - by knoopx
    Hello, I'm trying to figure out how to access from my development machine (Devel) to a third party web service (www.domain.com) which I am not allowed to directly contact using my office IP address. Here's a basic diagram (i'm not allowed to post images...): http://yuml.me/diagram/scruffy/class/%5BDevel%5D-%5BA%5D,%20%5BA%5D-%5BB%5D,%20%5BB%5D-%5Bwww.domain.com%5D The only machine allowed to access that service is B (production server) but I do neither can directly access it from my development machine (Devel). So in order to access the web service I have to ssh into A, and then from A to B to access www.domain.com Is there any way of tunneling traffic from B to A and then back to my development machine so I can directly access www.domain.com without having to ssh into every box? Devel: My development machine. A, B: Linux servers. I own root access on both. B: Production server www.domain.com: Third party HTTP API production server uses.

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  • nginx howto correct the path from a back-end server redirect response under a virtual directory

    - by noname
    The following was my deployed servers: client ------ nginx proxy(example.com) ------ back-end server(192.168.1.20) The nginx proxy's external URL was configured under a virtual directory http://example.com/demo/ The back-end server was configure to http://192.168.1.20:8080/ the following was part of the nginx configure file: location /demo { proxy_pass http://192.168.1.20:8080/; proxy_redirect default; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } When the back-end server send a redirect response (HTTP CODE 302) with LOCATION head field "http://192.168.1.20/subdir/", the nginx map this LOCATION header field to "http://example.com/subdir/", not the disired "http://example.com/demo/subdir/"

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  • Web service not accessible from behind corporates firewalls - how come?

    - by Niro
    We run a Saas serving a widget which is embedded in customer websites. The service include static javascript code hosted on amazon S3 and dynamic part hosted on EC2 with Scalr (using scalr name servers). We received some feedback from users behind corporate firewalls that they cant access our service (while they can access the sites including the widget). This does not make sense to me since the service is using normal http calls on port 80 and our URL is quite new without any reason to be banned by firewalls. My questions are: 1. Why is the service is not accessible and what can I do about it? 2. Is it possible that one of the following is blocked by corporate firewalls: Amazon s3, the dynamic IP address provided by amazon, Scalr name servers. Any other possible reasons, way to check them and remedies for this? Thanks!

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  • Server 2012 R2 DNS Conditional forwarding not working reliably, possible caching issue?

    - by Matt
    I have a bit of a home lab setup with a domain controller that is acting as the DNS server for my network. For everything, it's working fine and forwards external DNS requests to my ISP. The household recently wanted to get Netflix going and it seemed a DNS option was better than a VPN to get around the region locking, so I signed up for unblock-us.com Since I have a Windows DNS server I thought I'd be clever and make use of conditional forwarders and added the Netflix domain to the list. Initially this worked well and all devices on the network could now access Netflix, however after about an hour going to the Netflix site would result in a page cannot be found. Doing an nslookup of Netflix.com from my PC resulted in it not returning any IP addresses. As a test, I deleted the Netflix domain from the DNS servers cache and things started working again - devices could get to the site again however the same thing happens again after around half an hour to an hour. Have I missed something here that's causing it to stop working?

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  • Hosting online with xampp?

    - by Andrew
    I'm not quite sure what I'm doing wrong, because from what I've read, this should all be working. What I've done: Forwarded ports 80, 8080, and 443. Changed the ServerName localhost:80 line in \apache\conf\httpd.conf to ServerName myip:80. Registered at dyndns.com, and have been using their update client to link my IP to the DNS thingy. Made sure xampp was using port 80, and started apache and MySql. And...nothing. What did I miss? =/.

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  • DNS configuration for external/internal resolution

    - by FerranB
    HI, We have an internal web server which is available through Internet and from local network. The server is located in the local network. The current configuration is the following: To access through Internet you use http://webexample.com To access through Local Network you use http://myweb The main problem is that the local users cannot share links with external users. Thats a problem for us. I want to setup the following configuration: All users (local and Internet) access through http://webexample.com The local DNS server resolves http://webexample.com to the local Network IP (i.e 192.168.2.100) Any other suggestion? Which is the best way to override http://webexample.com resolution in Windows Server? It can be done on DNS server or it have to be done in hosts file?

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  • Making internal website available publicly (Win 2008 Server)

    - by endigo
    I have an IIS 7 web site that is running on a Windows 2008 Server (64-bit) VMWare on a Windows 2008 Server (64-bit) Host on my local network. My router is a Firebox XEdge and it has port 80 directed to the IP of the server on VMWare. I can reach the web site from inside the network, but I cannot reach the site from outside the network. I have other web sites that are working through the Firebox, and I am confident that it is configured correctly. I suspect that Windows 2008 server is blocking routed or public addresses, but I have shut down the firewall on the Server that is running on VMWare and the AVG Anti-virus to no avail. How can I make my site available publicly.

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  • unusual webpage access problem

    - by user28163
    This is one of the weirdest problems I've ever seen and I'm out of ideas. I cannot access a couple of websites from my home pc (for 3-4 days now), or at least they go really really slow ~700b/s I can access these same websites fine from my laptop from same IP address. - The websites originate from different countries and are huge popular sites. - I have tried both my PC's network cards. - I have reformatted my PC. - I have reset my router to factory settings. - I have created virtual computers on my PC, and from inside those I cannot access the webpages. - I have flushed my dns. - I tried specifying my dns server addresses to 8.8.8.8 and 8.8.4.4. I can only access the webpages using my PC, if I first connect to an outside VPN. Again, these sites work fine on the 2 other pcs in this house (same ISP and internet connection). help plz :)

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  • First requests are painfully slow

    - by winSharp93
    I am running Redmine under IIS using Zoo. Installation was done using the Web Platform Installer and the default configuration has not been touched. However, when using the application, the first requests take very long to complete (sometimes more than one minute). During that time, the ruby.exe causes some CPU load (about 15%). According to the log files, it's mainly the views taking that long to render: Started GET "/redmine/login" for IP at 2012-09-04 09:54:08 +0200 Processing by AccountController#login as HTML Rendered account/login.html.erb within layouts/base (42150.5ms) Completed 200 OK in 43508ms (Views: 43008.5ms | ActiveRecord: 0.0ms) Rendered account/login.html.erb within layouts/base (42435.1ms) Completed 200 OK in 44100ms (Views: 43523.3ms | ActiveRecord: 0.0ms) After the initial delay, further request times are totally acceptable. Any ideas on how to speed up the warmup time?

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  • Windows Server 2003/Exchange 2007: How to setup public domain mail.foo.com to route to internal exch

    - by ryan.keeter
    Good day, I have an internal Exchange Server 2007 and a Windows Server 2003 domain. At this point in time I have an external DNS setup (DynDNS 29.95 service) to resolve foo.com to my singular public IP address then it gets routed to external facing site. I would like to know how to setup POP on mail.foo.com and SMTP on smtp.foo.com, and more importantly, what needs to be setup in Exchange server to allow for this to happen. My end state is to send email through smtp.foo.com and receive mail on mail.foo.com. As of now, when I create a user within Exchange the default email address is [email protected], and I would like it to be [email protected]. Thank you and I appreciate the help as I am a .NET developer trying to do sys admin work, and it is MUCH harder than I have ever imagined, my hat is off to all sys admins and IT pros.

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  • Point example.com to webserver in DNS record

    - by ggstevens
    I have a Mac Mini Server (named Server) with the following DNS setup Primary Zone: example.com mysql-host.example.com machine (10.0.0.101) server.example.com machine (10.0.0.100) server.example.com nameserver (10.0.0.100) www.example.com machine (10.0.0.102) www.example.com is a linux box with Apache. How do I get both example.com and www.example.com to work. Right now, I can view my website with www.example.com only. I know there's nothing that points example.com to the IP, but when I create a machine record without a hostname I get an error (This machine record cannot be created without a host name.).

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  • The canonical "blocking BitTorrent" question

    - by Aphex5
    How can one block, or severely slow down, BitTorrent and similar peer-to-peer (P2P) services on one's small home/office network? In searching Server Fault I wasn't able to find a question that served as a rallying point for the best technical ideas on this. The existing questions are all about specific situations, and the dominant answers are social/legal in nature. Those are valid approaches, but a purely technical discussion would be useful to a lot of people, I suspect. Let's assume that you don't have access to the machines on the network. With encryption use increasing in P2P traffic, it seems like stateful packet inspection is becoming a less workable solution. One idea that seems to make sense to me is simply throttling down heavy users by IP, regardless of what they're sending or receiving -- but it doesn't seem many routers support that functionality at the moment. What's your preferred method to throttle P2P/BitTorrent traffic? My apologies if this is a dupe.

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  • UDP Reverse Proxy

    - by user180195
    I have found a way to make reverse-proxy to an external IP. Here is how someone making a request will see it's request being passed: Clients sends request Request reaches the Datacenter one in some place That datacenter, acting as a reverse proxy will redirect the same exact request to another datacenter. The datacenter will then process the request Although, this only works with TCP/HTTP (Looking currently at HaProxy). I am hosting game servers at the other datacenter (where the proxy is not) that are using UDP protocol. Do you know how can I setup a reverse proxy using the UDP protocol.

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  • open-iscsi does not login into targets on boot

    - by Creshal
    We have a Debian Lenny server with open-iscsi that's configured to log into a target automatically: hostname:~# grep \\.startup /etc/iscsi/iscsid.conf node.startup = automatic hostname:~# grep \\.startup /etc/iscsi/nodes/iqn..../the.correct.ip.address\,port node.startup = automatic node.conn[0].startup = automatic hostname:~# If I issue a restart of open-iscsi via init.d, it works fine. But if I reboot the machine, iscsi starts, but does not even search for targets. I have to manually restart it before it works. Any ideas how to make it find the target on boot?

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  • Is there a way to submit a batch of commands to a Cisco router and have them execute from the router?

    - by atroon
    I need to change the configuration of a remote (6 hours' drive) client's Cisco 871 (IOS 12.4.15T) from my location because of some new internet service at his location. To be more precise, I need to change the default route, ip address of the outside interface (Fa4) and disable the PPPoE setup there. Unfortunately, doing any of this will (obviously) break the connection to the router. I do not have an out-of-band management modem set up (I know, I know). Is there any way to enter the commands I need to have run and have them execute one after the other, from a file on flash:? I have never tried anything like that before. Essentially a DOS-style batch file is exactly what I need. Nothing like it seems to be out there except using kron to execute CLI commands, but that is specified here as only taking EXEC commands, not configuration ones. Is there hope, or do I travel?

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  • Cached Network Share Credentials?

    - by Brian Wolfe
    Hi, I have an issue in Windows 7 where I get the following error message when attempting to access an admin network share on a machine in another domain: "Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again." Troubleshooting I've Done Start Run cmd net use * /DELETE Start Manage Windows Credentials Deleted all credentials I still receive the same error until I reboot my machine. After I reboot, it works fine. However, I am able to log into the admin share if I hit it by it's IP address. QUESTION My question is, is there somewhere else I should be looking for cached user credentials? Thanks, Brian

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  • Windows 7 stopped connecting to samba share

    - by Jan
    I have a problem with Windows 7 Home connecting to samba on linux server. It's worked fine for a year and without any changes in configuration or updates it suddenly stopped working. The strangest thing for me is that it stopped working for no reason that I could think of. After a few minutes after trying to connect I get: \\ip is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. Other computers in that network (XP machines) connect to samba without any problem. I've tried adding LmCompatibilityLevel as described here: http://www.tomshardware.com/forum/75-63-windows-samba-issue , but it didn't help.

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