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  • vsftp login errors 530 login incorrect

    - by mcktimo
    Using Ubuntu 10.04 on an aws ec2 instance. I was happy just using ssh but then a wordpress plugin needs ftp access...I just need ftp access for one site www.sitebuilt.net which is in /home/sitebuil. I installed a vftpd and pam and followed suggestions that got me to the following state /etc/vftpd.conf listen=YES anonymous_enable=NO local_enable=YES write_enable=YES dirmessage_enable=YES use_localtime=YES xferlog_enable=YES connect_from_port_20=YES xferlog_file=/var/log/vsftpd.log secure_chroot_dir=/var/run/vsftpd/empty pam_service_name=vsftpd rsa_cert_file=/etc/ssl/private/vsftpd.pem guest_enable=YES user_sub_token=$USER local_root=/home/$USER chroot_local_user=YES hide_ids=YES check_shell=NO userlist_file=/etc/vsftpd_users /etc/pam.d/vsftpd # Standard behaviour for ftpd(8). auth required pam_listfile.so item=user sense=deny file=/etc/ftpusers onerr=succeed # Note: vsftpd handles anonymous logins on its own. Do not enable pam_ftp.so. # Standard pam includes @include common-account @include common-session @include common-auth auth required pam_shells.so # Customized login using htpasswd file auth required pam_pwdfile.so pwdfile /etc/vsftpd/passwd account required pam_permit.so session optional pam_keyinit.so force revoke auth include system-auth account include system-auth session include system-auth session required pam_loginuid.so /etc/vsftpd_users sitebuil tim /etc/passwd ... sitebuil:x:1002:100:sitebuilt systems:/home/sitebuil:/bin/sh ftp:x:108:113:ftp daemon,,,:/srv/ftp:/sbin/nologin /etc/vsftpd/passwd sitebuil:Kzencryptedpwd /var/log/vftpd.log Wed Feb 29 15:15:48 2012 [pid 20084] CONNECT: Client "98.217.196.12" Wed Feb 29 15:16:02 2012 [pid 20083] [sitebuil] FAIL LOGIN: Client "98.217.196.12" Wed Feb 29 16:12:33 2012 [pid 20652] CONNECT: Client "98.217.196.12" Wed Feb 29 16:12:45 2012 [pid 20651] [sitebuil] FAIL LOGIN: Client "98.217.196.12"

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  • How to monitor process hogging CPU on a remote server

    - by sergeb
    I have a remotely hosted (virtual, VMware) dedicated server (Windows 2008 Server Web edition w/ SP1) that I can only connect to over Remote Desktop. Lately, a process hogs CPU for ~40 minutes most every day (at a random hour) and brings all web sites on the server down. While this is going on I also cannot connect using Remote Desktop to investigate on what is that process... Promptly after 40 min I can RD and the first thing I see on the Perf Monitor is that there was something topping the CPU at 100% and stops just before I'm able to RD... I'm aware of the beginning and end of this for I have monitors setup that email me up/down status of the web sites but I'm locked out while this is happening - can't RD to the server until it's over (and too late to see the Task Manager/Process Explorer picture). What is the best way/tool to setup on the server to continuously monitor all processes so when this happens I login and "replay" it to find the process causing this trouble? (I have no control over the virtual/VMware setup for it is hosted by a 3rd-party but I have most full control over my dedicated machine) Thanks in advance!

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  • mysql is not connecting after data directory change

    - by user123827
    I've changed data directory in /etc/my.cnf. datadir=/data/mysql socket=/data/mysql/mysql.sock I also moved mysql folder from /var/lib/mysql/ to /data/mysql Now when i connect to mysql i get following error: [root@youradstats-copy mysql]# mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) also when i see /var/logs/msqld.log i get following messages in that: InnoDB: Setting log file /data/mysql/ib_logfile0 size to 512 MB InnoDB: Database physically writes the file full: wait... InnoDB: Progress in MB: 100 200 300 400 500 120704 7:43:31 InnoDB: Log file /data/mysql/ib_logfile1 did not exist: new to be created InnoDB: Setting log file /data/mysql/ib_logfile1 size to 512 MB InnoDB: Database physically writes the file full: wait... InnoDB: Progress in MB: 100 200 300 400 500 InnoDB: Cannot initialize created log files because InnoDB: data files are corrupt, or new data files were InnoDB: created when the database was started previous InnoDB: time but the database was not shut down InnoDB: normally after that. 120704 7:43:36 [ERROR] Plugin 'InnoDB' init function returned error. 120704 7:43:36 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. I shut down mysql properly before doing these changes and then started it properly but dont know why getting these messages. please help to solve issue as i have changed socket path in my.cnf but still its pointing to old path...

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  • apache2: ssl_error_rx_record_too_long when visiting port 80? help!

    - by John
    Hi, I have an Ubuntu 10 x64 server edition machine. I got a second IP and configured /etc/network/interfaces like so (actual IPs and gateways removed): [code] auto lo iface lo inet loopback iface eth0 inet dhcp auto eth0 auto eth0:0 iface eth0 inet static address [ my first IP ] netmask 255.255.255.0 gateway [ my first gateway ] iface eth0:0 inet static address [ my second IP ] netmask 255.255.255.0 gateway [ my second gateway ] [/code] /etc/apache2/ports.conf: [code] Listen 80 NameVirtualHost [ my first IP ]:80 NameVirtualHost [ my second IP ]:80 # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 NameVirtualHost [ my first IP - some site is running SSL successfully using it ]:443 Listen 443 [/code] /etc/apache2/sites-enabled/mysite.conf: [code] ServerName mysite.com Include /var/www/mysite.com/djangoproject/apache/django.conf [/conf] [/code] Then when visiting http[mysite].com:80 or http[mysite].com (:// removed because serverfault doesn't allow me to post hyperlinks), I get: [code] An error occurred during a connection to [mysite].com. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) [/code] My guess is that the configuration file is not being picked up, and apache is therefore looking for the default-ssl file, which is not in conf-enabled. If I were to configure that file properly, it seems I would successfully connect to whatever default directory is specified in the default-ssl file. But I want to connect to my website. Any ideas? Thanks in advance!

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  • Connecting to RDS database from EC2 instance using bind9 CNAME alias

    - by mptre
    I'm trying to get internal DNS up and running on a EC2 instance. The main goal is to be able to define CNAME aliases for other AWS services. For example: Instead of using the RDS endpoint, which might change over time, an alias mysql.company.int can be used instead. I'm using bind9 and here's my config files: /etc/bind/named.conf.local zone "company.int" { type master; file "/etc/bind/db.company.int"; }; /etc/bind/db.company.int ; $TTL 3600 @ IN SOA company.int. company.localhost. ( 20120617 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS company.int. @ IN A 127.0.0.1 @ IN AAAA ::1 ; CNAME mysql IN CNAME xxxx.eu-west-1.rds.amazonaws.com. The dig command ensures me my alias is working as excepted: $ dig mysql.company.int ... ;; ANSWER SECTION: mysql.company.int. 3600 IN CNAME xxxx.eu-west-1.rds.amazonaws.com. xxxx.eu-west-1.rds.amazonaws.com. 60 IN CNAME ec2-yyy-yy-yy-yyy.eu-west-1.compute.amazonaws.com. ec2-yyy-yy-yy-yyy.eu-west-1.compute.amazonaws.com. 589575 IN A zzz.zz.zz.zzz ... As far as I can understand a reverse zone isn't needed for a simple CNAME alias. However when I try to connect to MySQL using my newly created alias the operation is giving me a timeout. $ mysql -uuser -ppassword -hmysql.company.int ERROR 2003 (HY000): Can't connect to MySQL server on 'mysql.company.int' (110) Any ideas? Thanks in advantage!

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  • Replacing stock Core 2 Duo heatsink fan (just the fan really) with a Dell CPU fan

    - by user647345
    My old heatsink fan broke and I'm trying to reconnect its plugs to a new fan. My Dell CPU fan has some custom Dell plug. I snipped the old fan's wire in half and kept the plug on the end of it. I want to connect it to the Dell fan wire to the plug. The motherboard is a P5Q-e, the stock Core 2 Duo fan was .20A and the dell is .70A. Is that going to matter? The wire from the fan has four wires, the wire with the plug has four wires. They share three, of the four colors: red, black, and blue. Dell's fourth wire is white, while the plug's fourth wire is yellow. Is it safe to assume that I just connect the yellow and the white plug together and match the rest up? I don't want to take any risk of damaging anything. It runs fine passively without a fan, but I have speedstep on, so I would like to use this fan and just fasten it to the heatsink with some twist ties and paperclips and call it a day.

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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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  • Remote desktop solution where the desktop sharing party contacts the computer it wants to share with

    - by Kent
    I'm in a situation where I act as a sort of techinical support to my family and less techinically experienced friends. I'm looking for a remote desktop solution where it's possible to setup a "zero-install, double click an icon"-solution where the client computer contacts me so that I may interact with their desktop. The last part is important as the people in need of my help don't know how to configure their router or even the firewall software on their own computer. They are able to click an accept button when asked if a program should be able to make outgoing connections. They have many different kinds of routers, as well as software firewalls, and I rather not deal with the problem of how to connect to them using whatever as well as the actual problem they are having. It must be: Free of charge for non-commercial use. Possible to use it in a mode where the computer wanting to share its desktop should be able to make a connection to my computer. My computer has a DNS name we can use. Compatible with both Windows XP and Windows 7. Independent of a third party server or infrastructure. Explanations of the above: I don't want to spend money on it when I help them for free. If it's free as in freedom, all the better! I guess this boils down to being callable like showdesktopto.exe opscomputer.com where opscomputer.com is my computers DNS name. If that is possible then I can create a shortcut they can use to connect to me when they need help. It's nice if it's possible to specify a password or key file which I can use to authenticate myself, but it's not required. They use the OS which their machine comes installed with. That means Windows XP or 7. I want something which will work in the long run. Using a third party service which might not be available when I need it disqualified such solutions.

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  • How to troubleshoot connectivity when curl gets an *empty response*

    - by chad
    I want to know how to proceed in troubleshooting why a curl request to a webserver doesn't work. I'm not looking for help that would be dependent upon my environment, I just want to know how to collect information about exactly what part of the communication is failing, port numbers, etc. chad-integration:~ # curl -v 111.222.159.30 * About to connect() to 111.222.159.30 port 80 (#0) * Trying 111.222.159.30... connected * Connected to 111.222.159.30 (111.222.159.30) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.19.0 (x86_64-suse-linux-gnu) libcurl/7.19.0 OpenSSL/0.9.8h zlib/1.2.3 libidn/1.10 > Host: 111.222.159.30 > Accept: */* > * Empty reply from server * Connection #0 to host 111.222.159.30 left intact curl: (52) Empty reply from server * Closing connection #0 So, I understand that an empty response means that curl didn't get any response from the server. No problem, that's precisely what I'm trying to figure out. But what more specific info can I derive from cURL here? It was able to successfully "connect", so doesn't that involve some bidirectional communication? If so, then why does the response not come also? Note, I've verified my service is up and returning responses. Note, I'm a bit green at this level of networking, so feel free to provide some general orientation material.

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  • Remote Desktop access Windows 7 system from Windows 8

    - by Prabhat
    I have 2 systems; Windows 7 & Windows 8. Both are connected to WiFi router. They have been assigned address 192.168.2.8 & 192.168.2.9 respectively. I have added them to home group. I am able to ping and connect Windows 8 system from Windows 7. I am having trouble connecting Windows 7 system from Windows 8 system. I can't even ping Windows 7 system. Windows 7 system's user is administrator (default administrator account from secpol.msc). File sharing, Remote Access, network discovery are all enabled. Someone please help me connect. EDIT : I found that this is the issue of Kaspersky Internet Security 2012. If I disable firewall, it works. I tried opening port 3389 in Kaspersky. It is still blocking access.

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  • Windows 7 - Windows XP - sharing - why isn't working?

    - by durumdara
    Hi! This is seems to be "hardware" and not "software" / "programming" question, but I need to use this share in my programs, so it is "close to programming". We had an XP based wireless network. The server is XP Professional, the clients are XP Home (Notebooks). This was working well with folder sharing (with user rights, not simple share). Then we replaced the one of the notebook with Win7/X64 notebook. First time this can reach the server, and the another client too. Later I went to another sites, and connect to another servers, another networks. And then, when I return to this network, I saw that I cannot connect to this server. Nothing of resources I see, and when try to dbl click on this computer, I got login window, where I can write anything, never I can login... The interesting part, that: Another XP home can see the server, can login as quest, or with other user. The server can see the XP home notebook. The Win7 can see the notebook's shared folders, and XP home can see the Win7 shared folders. The server can see the Win7 folders, BUT: the Win7 cannot see the server folders. Cannot see the resources too... The Win7 is in "work networking group", the group name is not mshome. I tried everything on the server, I tried to remove MS client, restore it with simple sharing, set guest password, etc., but I lost the possibilities to access this server from Win7. Does anyone have any idea what I need to see, what I need to set to access these resource - to use them in my programs? Thanks for every info, link: dd

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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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  • Cannot access host from a virtualbox guest using bridged adapter

    - by David Dai
    I have a windows 7 host with firewall turned off. And I have a windowsXP guest running on Virtualbox 4.2.4r81684. In my windowsXP guest I tried to connect to the FTP server on my host machine(which used to work well) but it didn't work. I tried to ping my host machine, but it didn't work either. Then I tried to ping my guest from host, it worked well. my guest ip is :192.168.1.95 my host ip is : 192.168.1.9 route table on guest machine is this: C:\Documents and Settings\wenlong>route PRINT =========================================================================== Interface List 0x1 ........................... MS TCP Loopback interface 0x2 ...08 00 27 66 54 6c ...... AMD PCNET Family PCI Ethernet Adapter #2 - Packe t Scheduler Miniport =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.95 20 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 192.168.1.0 255.255.255.0 192.168.1.95 192.168.1.95 20 192.168.1.95 255.255.255.255 127.0.0.1 127.0.0.1 20 192.168.1.255 255.255.255.255 192.168.1.95 192.168.1.95 20 224.0.0.0 240.0.0.0 192.168.1.95 192.168.1.95 20 255.255.255.255 255.255.255.255 192.168.1.95 192.168.1.95 1 Default Gateway: 192.168.1.1 =========================================================================== Persistent Routes: None arp cache is this: C:\Documents and Settings\wenlong>arp -a Interface: 192.168.1.95 --- 0x2 Internet Address Physical Address Type 192.168.1.1 00-26-f2-60-3c-04 dynamic 192.168.1.9 90-e6-ba-c2-90-2f dynamic It's strange because there was no problem days before and I didn't make any changes to the setting. could anybody help? PS. the guest can communicate with other machines in the LAN(for example 192.168.1.114) ok. it just cannot connect to the host machine.

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  • Mysql Cluster not working on Ubuntu

    - by user53864
    I am unable to setup MySQL Cluster on ubuntu servers. As a starting point I started from the link but I am not successful and the tar ball version I download is 6.3.45. As I wanted to test the mysql cluster, the Data node and SQL node are same but sql never appeared as connected in management node console and it looks like below. [ndbd(NDB)] 2 node(s) id=2 @192.168.1.107 (Version: version number, Nodegroup: 0, Master) id=3 @192.168.1.108 (Version: version number, Nodegroup: 0) [ndb_mgmd(MGM)] 1 node(s) id=1 @192.168.1.105 (Version: version number) [mysqld(API)] 2 node(s) id=4 (not connected, accepting connect from 192.168.1.107) id=5 (not connected, accepting connect from 192.168.1.108) On all the 3 machines mysql-server & client(apt-get install mysql-server mysql-client) were already installed and I completely stopped and also removed them at the system start up. Now the mysqld is from extracted cluster tar ball(/usr/local/mysql/support-files/mysql.server). As for testing, I created a test database on both the data nodes but the tables are also not syncing on other node. I checked many links, configurations are remained similar in all the links but somewhere it's going wrong. Anymore extra package is required?, Could anyone help me here..?. I am trying this for past 3 days... Thank you!

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  • Do you need to advertise an AFP service via Avahi for an Ubuntu Server to show up in OSX Finder?

    - by James
    I am only advertising an NFS share plus the "model", and I don't want to install extra services on the Server unless I have to, ie netatalk, as it is used solely for NFS exports. Currently there is no entry in Finder under "Shared" with below config of Avahi. serveradmin@FILESERVER:/etc/avahi/services$ cat nfs.service <?xml version="1.0" standalone='no'?><!--*-nxml-*--> <!DOCTYPE service-group SYSTEM "avahi-service.dtd"> <service-group> <name replace-wildcards="yes">%h</name> <service> <type>_nfs._tcp</type> <port>2049</port> <txt-record>path=/Volumes/StoragePool</txt-record> </service> <service> <type>_device-info._tcp</type> <port>0</port> <txt-record>model=Xserve</txt-record> </service> </service-group> Server: Ubuntu 12.04.01 x64 Clients: OSX 10.6.8 , 10.7.5, 10.8.2 The goal is to advertise that NFS share, then assign a really old Model code of Mac like a Powermac and switch out the icon for a more "LinuxServer-y" one. Plus allow users to connect to NFS in a manner they are familiar with like our other Xserve servers. I think Avahi is working in general as if I do: nfs://FILESERVER.local/Volumes/StoragePool it will connect fine. Any ideas?

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  • OSX Server 10.5 - Cannot log into Workgroup Manager - diradmin password is correct

    - by Mister IT Guru
    I've got a setup where I am trying to rescue a broken AD. We can no longer authenticate on the Workgroup manager, with passwords being rejected all the time - even though it is correct. I can connect using the workgroup manager on another server and I get the user list as expected, but when I click the padlock to make changes, I get the following screen: The problem is, I know the password is correct, I just used it to connect to the server in the first place. I can log into the server using the local admin, and services such as AFP, VPN and SMB continue to serve users. I have about 300 or so users on this server, and I would very much like to avoid having a rebuild. As there is much configuration that has been done without my knowledge (it's a client machine), I'd like to attempt to fix it, and then create another server and migration OD off this broken machine, then decommission it "gently". Ultimately this would mean no disruption of services. What I'd like it some tips as to how to fix the problem with authenticating to make changes in the work group manager, and maintenance on open directory in general. Thanks

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  • Handheld Linux device can't see one wireless network

    - by Nathan
    I'm using a Nokia N810 running OS 2008 (version 5.2008.43-7; should be the latest). It can see networks up and down the street in my neighborhood and can connect to mine using WEP. I can also connect to free networks at restaurants and the like. When I bring it into work, it can't see a wireless network ("No connections available"). When I use netstumbler on my laptop I can see a list of several essids showing green connectivity for the network. I know that the network has its essid broadcast, and I know that it's unsecured. When I run iwlist wlan0 scan, I see several APs with no essid, but I don't see anything with an essid set. I have verified using iwlist that my hardware supports the correct channels and speeds. I know this isn't a Nokia/mobile forum, but it's running what's basically a Debian kernel. Any suggestions on what to do in this case? I'm really frustrated by this. Thanks, Nathan

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  • SQL server queries are really slow only on first run

    - by JoelFan
    Somewhat strange problem... when I start my .NET app for the first time after rebooting my machine, the SQL Server queries are really slow... when I pause the debugger, I notice that it's hanging on getting the response from the query. This only happens when connecting to a remote SQL server (2008)... if I connect to one on my local machine, it's fine. Also, if I restart the app, it works fast, even off the remote SQL server, and subsequent runs are also fine. The only problem is when I connect to a remote SQL server for the first time after rebooting my machine. What's more, I have even noticed this same exact behavior with a 3rd party app (also .NET) that also connects to a remote SQL server. Another piece of info... this has only started hapenning since I upgraded my machine from XP to Win7 (64 bit). Also, other developers on my team who upgraded to Win7 are seeing the same behavior (both with the app we're developing and the 3rd party .NET app). (copied from http://stackoverflow.com/questions/2014814/sql-server-queries-are-really-slow-only-on-first-run )

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  • Possible DNS issue?

    - by durilai
    I am having an issue, which I think stems from DNS. I have 2 servers. Server 1 is AD server with DNS, which was automatically configured when installing AD. The second server is a web server that is part of the domain, but it is not AD nor any other role. I can remote desktop in from server 1 using internal IP address, but when I attempt to connect from any other computer it fails, the computer can connect to server 1. I am able to ping both servers, as well as nslookup both using their FQDN. I am also able to telnet to port 3389. Any help is appreciated UPDATE I do not think it is DNS anymore, but not sure what it is. The remote desktop connects and I get to the login prompt, but when I start to enter credentials it disconnects. I then am unable to reconnect. If I wait for about 10 minutes it will allow me to repeat, but with the same results. UGH!!!

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  • Why is the link between my switch and my router always negotiating half-duplex mode?

    - by Massimo
    I have a Cisco 2950 switch which has one of its ports connected to an Internet router provided by my ISP; I have no access to the router configuration, but I manage the switch. If I leave all switch ports with their default setup (auto-negotiation of speed and duplex mode), this link always connects at 100 MBit/s, but in half-duplex mode. I've tried replacing the cable, and also moving the link to another switch port: the result is always the same. A different device connected to the same port (or to any switch port, really) shows no problem at all. It could be guesed that someone configured the router to only connect in half-duplex mode... BUT, here's the catch: if I manually force the switch port to full-duplex mode (duplex full in the interface configuration), the link goes up, stays up and is completely stable. So: The connection is not forced to half-duplex mode by the router, otherwise it would not connect at all if I force the switch end to full-duplex. There is no actual link problem, otherwise the full-duplex connection would not go up or would at least show some errors. But if I leave the port free to auto-negotiate, it always connects in half-duplex mode. Why?

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  • Intermittent CNAME forwarding

    - by Godric Seer
    I host a personal website on an old desktop that is LAMP based. Since I have a dynamic IP, I use no-ip to make sure I have a working domain name at all times. I also have a domain I have bought on GoDaddy where I have a CNAME record forwarding the www subdomain to my no-ip domain. At all times, I can connect to my website through the no-ip domain without issue. For the past several weeks, I never had an issue using the GoDaddy domain to connect (ssh or https). As of today, however, the GoDaddy domain only works for about 10 minutes at a time. I get server not found errors most of the time. Also, if I happen to be using the GoDaddy domain for an ssh connection, the connection will freeze. I have attempted to run tests using a couple of online DNS check websites, but have not gotten any errors at any time. I also contacted GoDaddy support but they had no issues connecting to the website, and therefore did not see any issues. I would like advice on how I could debug/resolve this issue. Since the problem appeared without me changing anything on my end, I hope it will resolve itself, but knowing the cause in case it happens again would be preferable. EDIT: I changed the configuration in GoDaddy to create an A (Host) that points at my current IP. This works fine, so I can access the site through the GoDaddy domain without the preceding www. I am currently waiting for a new CNAME record to propagate that points the www subdomain at the main host, rather than my no-ip domain.

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  • MS SQL to MySQL using MySQL Migration Toolkit: permission issue

    - by Zeno
    I have a MS SQL imported into SQL Server 2008 from a .bak and I set it to Mixed mode. I have a SQL user (called "test") that can correctly access the database using SQL Server. I need to convert this to a MySQL database, so I got the MySQL Migration Toolkit. I pick "MS SQL Server" and then it asks for the hostname/username/password/database. I'm not 100% sure on these, but I used "localhost" (running on same computer), left the port as is (1433) and the username/password ("test") for the SQL Server. And I used the database name for the SQL Server database I'm looking to import. I clicked next, enter my MySQL database details and then attempt to run it and I get this error: Connecting to source database and retrieve schemata names. Initializing JDBC driver ... Driver class MS SQL JDBC Driver Opening connection ... Connection jdbc:jtds:sqlserver://localhost:1433/Orders;user=test;password=blah;charset=utf-8;domain= The list of schema names could not be retrieved (error: 0). ReverseEngineeringMssql.getSchemata :Network error IOException: Connection refused: connect Details: net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:372) net.sourceforge.jtds.jdbc.ConnectionJDBC3.<init>(ConnectionJDBC3.java:50) net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:178) java.sql.DriverManager.getConnection(Unknown Source) java.sql.DriverManager.getConnection(Unknown Source) com.mysql.grt.modules.ReverseEngineeringGeneric.establishConnection(ReverseEngineeringGeneric.java:141) com.mysql.grt.modules.ReverseEngineeringMssql.getSchemata(ReverseEngineeringMssql.java:99) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) com.mysql.grt.Grt.callModuleFunction(Unknown Source)

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  • Filtered Router Interface

    - by jviotti
    I'm having some problems with a Scientific-Atlanta DPR2320R2. In specific with the WIFI. A few months ago I changed its password and username and now I can't remember. So I tried cracking it with Hydra but it drove things worse. Content of webadmin was rendered partial, and threw lot of errors. I then reseted the router. I found myself abled to browse the web with ethernet-connected pc. Wifi is configured by registering the device's MAC Address, and indeed the router has been reseted and register MAC address were lost. No device could connect to wifi. In fact, the device does not even recognize the network. I tried the pointing to 192.168.0.1 to restablish the MAC's. But I couldn't connect to the router access point. Tried listing up hosts: $ nmap -sP 192.168.0.0/24 Starting Nmap 5.00 ( http://nmap.org ) at 2012-12-11 01:18 ART Host 192.168.0.1 is up (0.0018s latency). Host 192.168.0.11 is up (0.00025s latency). Nmap done: 256 IP addresses (2 hosts up) scanned in 59.62 seconds Then checked 192.168.0.1 was really up by sending pings. It responded to all my pings. I quick-scanned the access point: $ nmap 192.168.0.1 Starting Nmap 5.00 ( http://nmap.org ) at 2012-12-11 01:08 ART Interesting ports on 192.168.0.1: Not shown: 999 closed ports PORT STATE SERVICE 80/tcp filtered http Nmap done: 1 IP address (1 host up) scanned in 6.73 seconds Look the state of the port 80: FILTERED. I'm pretty confused now. Any suggestion would be appreciated. Thanks in advance.

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  • Network config for KVM on physical machine with single NIC and single public IP

    - by neo0
    I have a physical machine running CentOS 6.4 and I will rent a place to run it in a data center. I want to install KVM on that machine to run some virtual machines. The problem is my physical machine have only one NIC and the data center give me a public IP for that interface. So how should I configure network on the physical machine to make it assign for each vm a private IP that can connect to Internet. If I create a br0 bridged with eth0 interface and create a vm with option --bridge=br0 then KVM could not assign an IP for the vm so setup can not be done. Should I use NAT mode? Does KVM have any host-only network like Virtualbox? But the vm still has to connect to outside? Thank you! Update I install the guest network using NAT (--network network:default) and then I only have to port-forwarding from the host. But if I config br0 bridged with physical eth0 then the guest can not get an IP from boot. So I removed the br0 and it worked.

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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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