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  • Server 2008 R2 domain windows update strategy

    - by Joost Verdaasdonk
    Let me explain my question a bit. We are a small company that have now made the first move to a bigger network. For now the network contains of 5 servers 2008 R2 (dc,sql,web,etc..). Everything we need is now in place but for now we cannot afford to finish the network by implementing redundant systems. (secondary dc, dns, sql cluster, etc...) For some people this is hard to understand but this is the current situation. (and we are aware and will fix this when we can) Because we want to keep our system secure and up to date I've made sure that all systems are updated regularly. The problem is ofc that the nr of updates Microsoft rolls out that need a system reboot seam to occur more often. (maybe I'm wrong and it just feels like this) ;-) In our domain servers depend on each other for services (like SQL, WEB, or whatever) so just rebooting a server at will is NOT a good idea! For now I update all of them without rebooting at once. After all are up to date I bring them down in the order they are depended on each other. After this I reboot all of them in the inverse order. I understand ofc that if I DID have redundancy in my system that updating and rebooting would not be such a problem because the server task could be taken over by another node but this is something we generally need to add when we can. So my question is. If you read my above situation can you suggest me more Update strategies or general ideas that could help me do this process in a better / faster way? Thanks for your thoughts!

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  • Strange RDP / Remote Desktop problem

    - by John Landheer
    I'll try to be as specific as I can be: Server is running SBS 2008 R2 (with all updates) Server is connected to the internet Server has 2 NIC's, one is disabled Server is running RDP Service (accessible directly from the internet, I know, not as secure as it should be) Computers A and B are on the same local net. Computers A and B are both Windows 7. Users X and Y are both admins on the server Computer A can connect as user X to the server with mstsc Computer A can connect as user Y to the server with mstsc Computer B can connect as user X to the server with mstsc Computer B CANNOT connect as user Y to the server with mstsc! Error that username/password is incorrect. The last point is the problem, I get an authentication error. This used to work flawlessly for the last year. The server and desktops have been rebooted. EDIT: I tried: prefixing domain to the username prefixing the server computer name to the username change the password copy/paste the password from notepad to make sure it was correct I find it very strange.... EDIT: The computers are not on the same subnet as the server. The server is at my hosting provider. All computers as all users can reach the web app that is running on the server.

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  • Fedora installed in Legacy mode, how to make it work in UEFI?

    - by TryntaLearn
    I am trying to install a linux distribution on my new laptop. It's an MSI GE40 which comes preinstalled with windows 8. It's a UEFI machine. I have tried installing Ubuntu and Fedora with limited success. I've tried: running it in UEFI, UEFI with CSM mode, with secureboot enabled, ... with secureboot disabeled, ... with secureboot enabled but in user mode. I have had no success with any of these methods. With Ubuntu the grub loader shows up, but when I pick 'try ubuntu', or 'install ubuntu', it's just a blank screen(I've been using liveusb's btw). With Fedora, it'll show me the next screen on which it says 'binary authorised by vendor certificate' or 'Secure boot not enabled' and then stop doing anything. The closest thing to success I reached was switching to legacy mode to install Ubuntu, in which case I was able to get to the ubunutu installer but it wouldn't recognize windows 8 on my computer, so instead of continuing on I rebooted, and removed the USB pendrive to find my computer couldn't find windows 8. After a little dicking about I got it to find windows 8 again. Any ideas on how I should go about trying to install a distro on my computer? UPDATE:- So I ended up installing fedora using Legacy mode. To use both it and Windows at boot, I manually enter automatic repair so I can get to my UEFI settings and switch boot mode to UEFI to boot windows 8. I guess my question needs to be modified as to how do I get all of this to work in UEFI mode, so I can dual boot via selection through a bootloader, and not by repeatedly switching boot mode.

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  • netlogon errors

    - by rorr
    I have two instances of mssql 2005 and am using CA XOSoft replication. The master is a failover cluster and the replica is a standalone server. They are all running Server 2003 sp2 x64. Same patch levels on all servers. This setup has worked great for several months until we recently restricted the RPC ports on both nodes of the master(5000 - 6000 using rpccfg.exe). We have to implement egress filtering, thus the limiting of the ports. We began receiving login errors for sql windows authentication and NETLOGON Event ID: 5719: This computer was not able to set up a secure session with a domain controller in domain due to the following: Not enough storage is available to process this command. This may lead to authentication problems. Make sure that this computer is connected to the network. If the problem persists, please contact your domain administrator. We also see group policies failing to update and cluster file shares go offline at the same time. The RPC ports were set back to default when we started seeing these problems and the servers rebooted, but the problems persist. The domain controllers are not showing any errors. Running dcdiag and netdiag shows everything is fine. We have noticed that the XOSoft service ws_rep.exe is using a lot of handles(8 - 9k), about the same number that sqlserver is using. As soon as xosoft replication is stopped the login errors cease and everything functions correctly. I have opened a ticket with CA for XOSoft, but I'm not sure that the problem is actually xosoft, but that it is the one bringing the problem to light. I'm looking for tips on debugging RPC problems. Specifically on limiting the ports and then reverting the changes.

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  • Looking for suggestions for hosting Windows 2000 Server in the cloud / VPS / etc?

    - by JohnyD
    I have a Windows 2000 Server, currently virtualized in Hyper-V, that I would like to get running off-site as a backup (cloud, VPS, etc). You can't virtualize in EC2 and I'm fairly certain there are no Server 2000 AMI's floating about (correct me if I'm wrong!). If anyone has a recommendation on how I can get a virtualized Windows 2000 Server running in a secure, remote environment I would be grateful. As far as locations go I'd be interested in both North America as well as Australia and Europe. In a nutshell, we're ploughing our way out of a legacy codebase and this server is the last that remains of the legacy apps. However, it is still very much used by our clients. Everything is backed up each night (data, images, etc) to tape which is then taken offsite. However, in the event of a fire I would love to have a backup legacy server to point DNS records to. So while I am rebuilding from the ashes our services would already be available. It would save a lot of time and make my managers all the more happy (and that's what it's all about, riighhtt? :D) Thank you all for your suggestions. Please let me know if I've left out any important information. Additional info: - the legacy codebase does not function properly in Server 2003

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  • In Icinga (Nagios), how do I configure hosts with multiple IPs?

    - by gertvdijk
    I'm setting up Icinga (Nagios fork) and I have some machines with multiple interfaces. Some services are only listening on one of them and to check them correctly, I like to know if it's possible to have multiple IP addresses configured for a single host in Icinga. Here's a minimal example: Remote Server: eth0: 1.2.3.4 (public IP) eth1: 10.1.2.3 (private IP, secure tunnel) Apache listening on 1.2.3.4:80. (public only) OpenSSH listening on 10.1.2.3:22. (internal network only) Postfix SMTP listening on 0.0.0.0:25 (all interfaces) Icinga Server: eth0: 10.2.3.4 (private IP, internet access) Now if I define a host: define host { use generic-host host_name server1 alias server1.gertvandijk.net address 10.1.2.3 } This will not check the HTTP status correctly. And defining an additional host: define host { use generic-host host_name server1-public alias server1.gertvandijk.net address 1.2.3.4 } will check everything, but shows up as two independent hosts. Now I want to 'aggregate' these two hosts to show up as a single host, yet providing an easy configuration to check the services on their proper address. What is the most elegant number-of-configuration-lines-saving solution to this? I read about several plugins available to workaround this, but I can't figure out what is the current way to address it. Solutions go back to 2003, but I'm running Icinga 1.7.1, already capable of the address6 option, yet that triggers IPv6-only resolving on the hostname... Ideally, I wish to configure Icinga to be intelligent enough to know that the Postfix instance running on 10.1.2.3:25 is the same as 1.2.3.4:25 and thus not triggering two alarms. I guess this must have been tackled before and sysadmins have it set up now. Please share your solution to this. Thanks! :)

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  • Trouble in Team Viewer VPN Connection

    - by Sumit Pal
    I have completed initial vpn connection setup. It has connected. I have tested with ping and it is ok. My problem is, when I want to start file transfer in VPN it asks for username & password. So what is the user name? I have tried giving Computer-Name/User-Name. I have found my Computer Name by going to Control Panel/System/ & clicking 'Computer Name' tab & username from user accounts or it is shown when I login in windows account (Please correct me if the above procedure is wrong). But what is the password? I have tried giving the account password but it always give 'The username or password is incorrect.' My Question: How to find the username & password? For Information: a) I have Team Viewer 7 installed in one Windows XP PC & one Windows 8 PC. I like to create a secure connection between these two PCs. b) The two PCs are connected in the same local network via a router. Please ask if you need additional information.

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  • JBoss https on port other than 8080 not working

    - by MilindaD
    We have a server with two JBoss instances where one runs on 8080, the other on 8081. We need to have HTTPS enabled for the 8081 server, firstly we tried enabling https on the 8080 port instance by generating the keystore and editing the server.xml and it successfully worked. However when we tried the same thing for 8081 it did not, note that we removed https for the 8080 server first before enabling it for 8081. This is what was used for both server.xml for 8080 and 8081. The only difference was that the port was changed from 8080 to 8081 when trying to enable https for 8081 port instance. What am I doing wrong and what needs to be changed? NOTE : When I meant enabled for 8080 I meant when you visit https:// URL:8484 you will actually be visiting the 8080 port instance. However when ssl is enabled for 8081 and I visit https:// URL:8484 I get that the web page is unavailable. COMMENTLESS VERSION <Server> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <Listener className="org.apache.catalina.core.JasperListener" /> <Service name="jboss.web"> <!-- https --> <Connector port="8080" address="${jboss.bind.address}" maxThreads="350" maxHttpHeaderSize="8192" emptySessionPath="true" protocol="HTTP/1.1" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" compression="on" ompressableMimeType="text/html,text/css,text/javascript,application/json,text/xml,text/plain,application/x-javascript,application/javascript"/> <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" address="${jboss.bind.address}" keystoreFile="${jboss.server.home.dir}/conf/supun1.keystore" keystorePass="aaaaaa" truststoreFile="${jboss.server.home.dir}/conf/supun1.keystore" truststorePass="aaaaaa" /> <!-- https1 --> <Connector port="8009" address="${jboss.bind.address}" protocol="AJP/1.3" emptySessionPath="true" enableLookups="false" redirectPort="8443" /> <Engine name="jboss.web" defaultHost="localhost" jvmRoute="khms1"> <Realm className="org.jboss.web.tomcat.security.JBossSecurityMgrRealm" certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping" allRolesMode="authOnly" /> <Host name="localhost" autoDeploy="false" deployOnStartup="false" deployXML="false" configClass="org.jboss.web.tomcat.security.config.JBossContextConfig" > <Valve className="org.jboss.web.tomcat.service.sso.ClusteredSingleSignOn" /> <Valve className="org.jboss.web.tomcat.service.jca.CachedConnectionValve" cachedConnectionManagerObjectName="jboss.jca:service=CachedConnectionManager" transactionManagerObjectName="jboss:service=TransactionManager" /> </Host> </Engine> </Service> </Server> WITH COMMENTS VERSION <Server> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener" /> <!-- Use a custom version of StandardService that allows the connectors to be started independent of the normal lifecycle start to allow web apps to be deployed before starting the connectors. --> <Service name="jboss.web"> <!-- A "Connector" represents an endpoint by which requests are received and responses are returned. Documentation at : Java HTTP Connector: /docs/config/http.html (blocking & non-blocking) Java AJP Connector: /docs/config/ajp.html APR (HTTP/AJP) Connector: /docs/apr.html Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8080" address="${jboss.bind.address}" maxThreads="350" maxHttpHeaderSize="8192" emptySessionPath="true" protocol="HTTP/1.1" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" compression="on" ompressableMimeType="text/html,text/css,text/javascript,application/json,text/xml,text/plain,application/x-javascript,application/javascript"/> <!-- Define a SSL HTTP/1.1 Connector on port 8443 This connector uses the JSSE configuration, when using APR, the connector should be using the OpenSSL style configuration described in the APR documentation --> <!-- <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" keystoreFile="${jboss.server.home.dir}/conf/zara.keystore" keystorePass="zara2010" clientAuth="false" sslProtocol="TLS" compression="on" /> --> <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" address="${jboss.bind.address}" keystoreFile="${jboss.server.home.dir}/conf/supun1.keystore" keystorePass="aaaaaa" truststoreFile="${jboss.server.home.dir}/conf/supun1.keystore" truststorePass="aaaaaa" /> <!-- Define an AJP 1.3 Connector on port 8009 --> <Connector port="8009" address="${jboss.bind.address}" protocol="AJP/1.3" emptySessionPath="true" enableLookups="false" redirectPort="8443" /> <Engine name="jboss.web" defaultHost="localhost" jvmRoute="khms1"> <!-- The JAAS based authentication and authorization realm implementation that is compatible with the jboss 3.2.x realm implementation. - certificatePrincipal : the class name of the org.jboss.security.auth.certs.CertificatePrincipal impl used for mapping X509[] cert chains to a Princpal. - allRolesMode : how to handle an auth-constraint with a role-name=*, one of strict, authOnly, strictAuthOnly + strict = Use the strict servlet spec interpretation which requires that the user have one of the web-app/security-role/role-name + authOnly = Allow any authenticated user + strictAuthOnly = Allow any authenticated user only if there are no web-app/security-roles --> <Realm className="org.jboss.web.tomcat.security.JBossSecurityMgrRealm" certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping" allRolesMode="authOnly" /> <!-- A subclass of JBossSecurityMgrRealm that uses the authentication behavior of JBossSecurityMgrRealm, but overrides the authorization checks to use JACC permissions with the current java.security.Policy to determine authorized access. - allRolesMode : how to handle an auth-constraint with a role-name=*, one of strict, authOnly, strictAuthOnly + strict = Use the strict servlet spec interpretation which requires that the user have one of the web-app/security-role/role-name + authOnly = Allow any authenticated user + strictAuthOnly = Allow any authenticated user only if there are no web-app/security-roles <Realm className="org.jboss.web.tomcat.security.JaccAuthorizationRealm" certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping" allRolesMode="authOnly" /> --> <Host name="localhost" autoDeploy="false" deployOnStartup="false" deployXML="false" configClass="org.jboss.web.tomcat.security.config.JBossContextConfig" > <!-- Uncomment to enable request dumper. This Valve "logs interesting contents from the specified Request (before processing) and the corresponding Response (after processing). It is especially useful in debugging problems related to headers and cookies." --> <!-- <Valve className="org.apache.catalina.valves.RequestDumperValve" /> --> <!-- Access logger --> <!-- <Valve className="org.apache.catalina.valves.AccessLogValve" prefix="localhost_access_log." suffix=".log" pattern="common" directory="${jboss.server.log.dir}" resolveHosts="false" /> --> <!-- Uncomment to enable single sign-on across web apps deployed to this host. Does not provide SSO across a cluster. If this valve is used, do not use the JBoss ClusteredSingleSignOn valve shown below. A new configuration attribute is available beginning with release 4.0.4: cookieDomain configures the domain to which the SSO cookie will be scoped (i.e. the set of hosts to which the cookie will be presented). By default the cookie is scoped to "/", meaning the host that presented it. Set cookieDomain to a wider domain (e.g. "xyz.com") to allow an SSO to span more than one hostname. --> <!-- <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> --> <!-- Uncomment to enable single sign-on across web apps deployed to this host AND to all other hosts in the cluster. If this valve is used, do not use the standard Tomcat SingleSignOn valve shown above. Valve uses a JBossCache instance to support SSO credential caching and replication across the cluster. The JBossCache instance must be configured separately. By default, the valve shares a JBossCache with the service that supports HttpSession replication. See the "jboss-web-cluster-service.xml" file in the server/all/deploy directory for cache configuration details. Besides the attributes supported by the standard Tomcat SingleSignOn valve (see the Tomcat docs), this version also supports the following attributes: cookieDomain see above treeCacheName JMX ObjectName of the JBossCache MBean used to support credential caching and replication across the cluster. If not set, the default value is "jboss.cache:service=TomcatClusteringCache", the standard ObjectName of the JBossCache MBean used to support session replication. --> <Valve className="org.jboss.web.tomcat.service.sso.ClusteredSingleSignOn" /> <!-- Check for unclosed connections and transaction terminated checks in servlets/jsps. Important: The dependency on the CachedConnectionManager in META-INF/jboss-service.xml must be uncommented, too --> <Valve className="org.jboss.web.tomcat.service.jca.CachedConnectionValve" cachedConnectionManagerObjectName="jboss.jca:service=CachedConnectionManager" transactionManagerObjectName="jboss:service=TransactionManager" /> </Host> </Engine> </Service> </Server>

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  • certutil -ping fails with 30 seconds timeout - what to do?

    - by mark
    Dear ladies and sirs. The certificate store on my Win7 box is constantly hanging. Observe: C:\1.cmd C:\certutil -? | findstr /i ping -ping -- Ping Active Directory Certificate Services Request interface -pingadmin -- Ping Active Directory Certificate Services Admin interface C:\set PROMPT=$P($t)$G C:\(13:04:28.57)certutil -ping CertUtil: -ping command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:04:58.68)certutil -pingadmin CertUtil: -pingadmin command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:05:28.79)set PROMPT=$P$G C:\ Explanations: The first command shows you that there are –ping and –pingadmin parameters to certutil Trying any ping parameter fails with 30 seconds timeout (the current time is seen in the prompt) This is a serious problem. It screws all the secure communication in my app. If anyone knows how this can be fixed - please share. Thanks. P.S. 1.cmd is simply a batch of these commands: certutil -? | findstr /i ping set PROMPT=$P($t)$G certutil -ping certutil -pingadmin set PROMPT=$P$G

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  • Centos iptables configuration for Wordpress and Gmail smtp

    - by Fabrizio
    Let me start off by saying that I'm a Centos newby, so all info, links and suggestions are very welcome! I recently set up a hosted server with Centos 6 and configured it as a webserver. The websites running on it are nothing special, just some low traffic projects. I tried to configure the server as default as possible, but I like it to be secure as well (no ftp, custom ssh port). Getting my Wordpress to run as desired, I'm running into some connection problems. 2 things are not working: installing plugins and updates through ssh2 (failed to connect to localhost:sshportnumber) sending emails from my site using the Gmail smtp (Failed to connect to server: Permission denied (13)) I have the feeling that these are both related to the iptables configuration, because I've tried everything else (I think). I tried opening up the firewall to accept traffic for ports 465 (gmail smtp) and ssh port (lets say this port is 8000), but both the issues remain. Ssh connections from the terminal are working fine though. After each change I tried implementing I restarted the iptables service. This is my iptables configuration (using vim): # Generated by iptables-save v1.4.7 on Sun Jun 1 13:20:20 2014 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m tcp --dport 8000 -j ACCEPT -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -p tcp -m tcp --dport 465 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A OUTPUT -o lo -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 8000 -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 465 -j ACCEPT COMMIT # Completed on Sun Jun 1 13:20:20 2014 Are there any (obvious) issues with my iptables setup considering the above mentioned issues? Saying that the firewall is doing exactly nothing in this state is also an answer... And again, if you have any other suggestions for me to increase security (considering the basic things I do with this box), I would love hear it, also the obvious ones! Thanks!

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  • Encrypting peer-to-peer application with iptables and stunnel

    - by Jonathan Oliver
    I'm running legacy applications in which I do not have access to the source code. These components talk to each other using plaintext on a particular port. I would like to be able to secure the communications between the two or more nodes using something like stunnel to facilitate peer-to-peer communication rather than using a more traditional (and centralized) VPN package like OpenVPN, etc. Ideally, the traffic flow would go like this: app@hostA:1234 tries to open a TCP connection to app@hostB:1234. iptables captures and redirects the traffic on port 1234 to stunnel running on hostA at port 5678. stunnel@hostA negotiates and establishes a connection with stunnel@hostB:4567. stunnel@hostB forwards any decrypted traffic to app@hostB:1234. In essence, I'm trying to set this up to where any outbound traffic (generated on the local machine) to port N forwards through stunnel to port N+1, and the receiving side receives on port N+1, decrypts, and forwards to the local application at port N. I'm not particularly concerned about losing the hostA origin IP address/machine identity when stunnel@hostB forwards to app@hostB because the communications payload contains identifying information. The other trick in this is that normally with stunnel you have a client/server architecture. But this application is much more P2P because nodes can come and go dynamically and hard-coding some kind of "connection = hostN:port" in the stunnel configuration won't work.

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  • Copying files between linux machines with strong authentication but without encryption

    - by Zizzencs
    I'm looking for a suitable program to copy files from one linux machine to another one. The program should be able to do authentication but it should not do encryption. The reason behind the latter is the lack of CPU power to do the encryption. I copy backups from ~70 machines to a single backup server simultaneously. The single server is an HP Proliant DL360 G7, with 10 Gbps ethernet connection and an FC storage backend that can do 4 Gbps. Through FTP I can write ~400MB/sec to the storage (that's about what I want) but through ssh with arcfour I can only do ~100MB/sec while having 100% CPU usage. That's why I want file transfers not to be encrypted. The alternatives that I found not really suitable: rcp: no authentication, forget it FTP: making the authentication "secure" (at least preventing plain-text password exchange) is possible but not really easy and I haven't found a method to force any FTP daemon to encrypt the control channel (for the authentication) and not to encrypt the data channel (for data transfers) SCP/SFTP: in farely recent ssh(d) implementations you can't turn off encryption. The best you can do is to use the arcfour cypher for the encryption but it sill uses too much CPU power for my needs. rsync over ssh: same problems as with SCP/SFTP. plain rsync: from the documentation of rsyncd: "The authentication protocol used in rsync is a 128 bit MD4 based challenge response system. This is fairly weak protection, though (with at least one brute-force hash-finding algorithm publicly available), so if you want really top-quality security, then I recommend that you run rsync over ssh." It's a no-go. Is there a protocol/program that can do exactly what I want? (A big plus would be if it could work on windows as well and/or if it would support rsync-stlye copying/synchronization (e.g. copy only the differences).)

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  • wireless router - configuring for low-latency, high traffic environment

    - by Mark C
    Hey all, I have a few questions about configuring a router to achieve low-latency, high speed throughput on a local area network that is not connected to the internet. I've read up on some stuff, but thought I would solicit some opinions here on what I've found and what I want to know.... Turn off SSID broadcast - it produces extraneous packets that all clients receive and reply (?) to. Not a huge deal, but it may help a bit. Mixed-mode off - I should attempt to have all devices using the same standard (e.g. 802.11n) and turn mixed-mode off. Any thoughts on security? Does having WEP or any of the WPA variants actually increase latency? Nothing super secure is going over this LAN so if turning security off made things better, that'd be cool. Any other thoughts or things to focus on to create the low latency environment I'm trying to go for would be great. Links to webpages and papers are also cool. I'm open to go through a bunch of stuff. Thanks in advance!

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  • On Windows machines, what is the typical toolchain for remote maintenance?

    - by Hanno Fietz
    I need to deploy PHP and Python code and the appropriate environment (web server, db server) to remote Windows systems, and I don't know what toolchain would be the equivalent to ssh, scp, bash and the like. So, basically, what I need to be able to do is the following: access remote Windows with the appropriate privileges in a secure manner, like I routinely do with ssh (I don't even know whether that would be a text or graphic interface on Windows). remotely install software: Apache or IIS, MySQL or Postgres, Python or PHP copy files from remote (the application we're deploying) remotely configure the machine to run regular tasks (e. g. checking for updates to the application) automate tasks like downloading files from a designated place The main question is probably how I get onto the machine securely in the first place, and then the rest is general Windows admin knowledge, which probably is too broad a scope to fit into one question. I have years of experience with maintaining Linux boxes and I have used tools of varying sophistication on those, ranging from plain scping of PHP files to deployment of Java application containers and even full VMs with Vagrant. On Windows, I'm a complete noob, and I don't even know where to start. I have installed Apache, MySQL , PHP on a desktop machine maybe twice in my life, that's about it. Bonus points for things that work from a Linux machine at my end, but I could run a VM and do everything from there.

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  • Webcam security camera software that runs as a service

    - by hurfdurf
    I've been looking for Windows webcam software that will run as a Windows service without any user login. The goal is to use the webcam as a cheap security camera and log the results to secure networked storage (windows share, not FTP). The requirements are: Motion detection Video capture Runs as a service (should start recording immediately after reboot) Nice to have: Round-robin storage, e.g. 10Gb limit, oldest files overwritten/deleted when space gets low I've read the other webcam questions but still haven't stumbled across anything suitable. Evaluations thus far: Title MotionDetect Service Snapshots Video SpaceLimit License Yawcam Yes Yes Yes No No GPL WebCam ZoneTrigger Yes No Yes Yes No Commercial Dorgem Yes No Yes Yes No GPL AbelCam Yes No Yes Yes No Commercial Logitech Yes No Yes Yes No Paired with camera IspyConnect Yes No Yes Yes Yes Free SecureCam (SourcefoYes No Yes Yes No GPL AbelCam Yes No Yes Yes No Commercial Active WebCam Yes Yes(?) Yes Yes Volume Free Commercial WebCam Surveyor Yes No Yes Yes No Commercial WebCamsPy NA NA NA NA NA GPL Camera: Logitech Webcam Pro 9000 Windows 7 32-bit WebCamsPy failed to initialize so couldn't be tested So far, the contenders: Active Webcam comes the closest, and claims to run as a service, but i haven't been able to get it to record after a cold boot even though a service is running. Yawcam can be set up as a service but doesn't record video. IspyConnect has exactly the type of space limit I want and looks great, but doesn't run as a service (seems also to be a bit of a cpu hog) Any other suggestions? I'm locked into Windows so can't use linux Motion, which looks almost perfect. Any pointers to rich Windows webcam/motion detection libraries out there that could easily be turned into a command line program would also be appreciated.

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  • squid bypass for a domain

    - by krisdigitx
    i am using squid with adzap, it possible that squid/adzap does not cache for a particluar domain eg. cnn.com this is my squid.conf file # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 #acl localhost src ::1/128 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 #acl to_localhost dst ::1/128 # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 192.168.1.0/24 acl localnet src 192.168.2.0/24 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow manager localhost http_access deny manager # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost # # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localnet http_access allow localhost # And finally deny all other access to this proxy http_access deny all # Squid normally listens to port 3128 http_port xxx.xxx.xxx.yyy:3128 transparent visible_hostname proxyserver.local # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /var/spool/squid 1024 16 256 # Leave coredumps in the first cache dir coredump_dir /var/spool/squid # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 access_log /var/log/squid/squid.log squid access_log syslog squid redirect_program /usr/local/adzap/scripts/wrapzap fixed using acl allow_domains dstdomain www.cnn.com always_direct allow allow_domains

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  • Apache + Tomcat: Which one should handle SSL? IP-based proxy forwarding?

    - by delirial
    We currently have a Tomcat application running with SSL on port 443. Right now we have an apache server that accepts http requests on port 80 and redirects to the Tomcat instance: <VirtualHost *:80> ServerName domain.com ServerAlias domain.com <LocationMatch "/"> Redirect permanent / https://domain.com/ </LocationMatch> </VirtualHost> Tomcat is handling SSL, because there's no proxy, just a simple redirect to the SSL port: <Connector port="443" maxThreads="200" scheme="https" secure="true" SSLEnabled="true" keystoreFile="/app/ssl/domain_com.jks" keystorePass="ourpassword" clientAuth="false" sslProtocol="TLS"/> We want to begin using the apache web server as a proxy and additionally, do per-IP redirects to certain apps that should only be used by hosts on a pre-determined IP range. We would also like to redirect IPs that don't match the pre-determined list to a static html page hosted on the apache server. My first question is: Should I continue to handle SSL on Tomcat's end, or should I use apache with SSL while forwarding to an "unprotected" tomcat port? Is there any way to redirect to different apps (and potentially hosts) depending on the incoming IP? thanks, del

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  • Family server setup

    - by Manny
    Hi all, I really hope some of you can give me some direction. I have setup a linux server at home and through samba I can access files from different computers in my home. I would like to use this server as a file-server for my family (brothers, sisters and parents who all live in their own homes). I really like the way it is set up right now with user and permission controls, but I've read that it is bad idea to open up the samba port to the world. The requirements are simple: 1) it should be easy to access, by using standard web browsers or mounting the drive (shouldn't have to use any VPN setup or use putty etc) 2) should be somewhat secure. We just want to share family pictures instead of putting them on facebook or picasa or other web server, nothing top secret. Here is what I've looked into: 1)Webdav. It seems decent but seems like it windows7 doesn't like it very much, even with digest mode authentication. User controls and permissions are not as flexible as samba (or at least to my knowledge). I really like the user and group permissions in samba, but if I could live with webdav if it worked seamlessly with windows, it should just work shouldn't it? 2) I read somewhere to stay away from ftp as it is outdated and that there are newer and better internet file-server setups? Was that a reference to webdav? I am so confused, please help... Manny

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  • Installing sphinx on a web hosting server

    - by fiftyeight
    I want to install sphinx search on a web-hosting server. I'm on a Linux VPS with hostgator, but I never actually installed anything on a remote server so this will be a first time for me. If there's anyone here who installed sphinx it's really help me I had some problems when using sphinx on my PC with the permissions and the MySQL files, eventually I got it working on my PC. Anyway, I'd me really grateful if anyone can help me with some questions Do i need root access to install sphinx? I have root access to the server but I'd connect to it as a normal user since doing stuff as root is always less secure. can anyone tell me by what user I need to execute the indexer and the search daemon? Should I use root access in order to this? when I did it as a normal user on my PC it gave me some trouble with the PID file and the log files. last time I executed the search deamon I executed it as a normal user and it gave me some trouble, I created the folder /var/log/ for log files and did chmod 777 on it, but still when I executed the search daemon it created the PID file "searchd.pid" file but with no permissions for some reason, any idea why? Thanx in advance. fiftyeight

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  • Are there any viable DNS or LDAP alternatives for distributed key/value storage and retrieval?

    - by makerofthings7
    I'm working on a software app that needs distributed decentralized name resolution, and isn't bound to TCP/IP. Or more precisely, I need to store a "key" and look up it's value, and the key may be a string, a number, or any other realistic data type. Examples: With a phone number, look up a name. (or with an area code, redirect to the server that handles that exchange) With an IP Address get a DNS name, or a Whois contact (string value) With a string, get an IP, ( like a DNS TXT or SRV record). I'm thinking out of the box here and looking for any software that allows for this. (more info below) Are there any secure, scalable DNS alternatives that have gained notoriety? I could ask on StackOverflow, but think the infrastructure groups would have better insight on this. Edit More info: I'm looking at "Namecoin" the DNS version of Bitcoin, and since that project is faltering, I'm looking at alternative ways to store name-value pairs, with an optional qualifier. I think a name value pair is of global interest is useful, but on a limited scale. Namecoin tried to be too much, and ended up becoming nothing. I'm trying to solve that problem in researching alternatives and applying distributed technologies where applicable. Bitcoin/Namecoin offers a Distributed Hash Table, which has some positive aspects, but not useful for DNS, except for root servers.

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  • On clients use generic driver for printer shared by CUPS

    - by Daniel
    I know this worked really easy with a recent CUPS version some years ago. Unfortunately I fail to do the following with latest CUPS nowadays. How to share a printer without using printer specific drivers on the clients with CUPS? The printer is a Samsung ML-2010. The important fact is that it needs a quite specific library for printing called splix. That is installed on the server and prints well. What makes trouble is using that printer over the network. I found out how to use Avahi under Linux to make use of DNSSD to advertise and discover printers. But as far as I understand the new CUPS offers the internal driver interface on the network. This has 2 major issues: anybody can fiddle with the driver and I don't trust any uncommon printer library to be "network secure" anyone who wants to use my printer including guests needs to install the specific drivers first I remember the old days when I could enable "Share this printer" on the CUPS server and all clients would magically detect the printer and just send their job data to the server and have it do the driver stuff. After everything a read I guess this is related to the changes Apple introduced with CUPS including dropping of the integrated network discovery protocol. If it helps: Server: Ubuntu LTS 12.04 Server with CUPS 1.5.3 Client: Arch Linux with current CUPS 1.6.1 On another box with Ubuntu the printer was setup automatically at least but the mechanism used the Splix library for that.

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  • Nginx flv audio pseudo stream works but video is not loading

    - by sarah
    I am working on a development server for a company & they want nginx webserver to work with. So the requirements for their company is, it should be capable of doing following things i.e hotlink protection, mp4 & flv pseudo stream & secure streaming. However nginx fulfills their requirements and i am configuring their server from past 2 days as i am new to this field so i've only acheived hotlinking prevention in past 2 days. But the problem on which i am stuck is flv pseudo streaming, to make work to mp4 pseudo stream it was just a piece of paper but i am really fuc*ed up with flv pseudo stream. I have converted my flv videos with flvmdi tools to insert many keyframes but the problem is , when i try to seek video from following keyframes that are generated by flvmdi i.e test.flv?start=2681223, video does not load but audio pseudo works fine. So it means no problem with my flv configuration in nginx.conf file. And the forum that i used to compile my nginx-1.2.1 is http://h264.code-shop.com/trac/wiki/Mod-H264-Streaming-Nginx-Version2 & by adding additional module --with-http_flv_module. This forum is really active, hopes i will resolve my problem as soon as you guys will provide me some guide.

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  • Looking for issue tracker software for residential property management

    - by Rob
    This question is about a computer software (as per SU guidelines) application for centrally tracking issues concerning the management of a residental block of flats (apartments as they say in the US and France). Issues are incidents - and their resultant unplanned maintenance to address them, also planned one-off maintenance and also regular planned routine maintenance. I live in a block of flats (apartments), and along with other residents, are looking to more closely watch over issues with the communal, shared areas of the premises (corridors, courtyards, stairs, lifts, lights, trash/bin shed, bike stands, parking areas etc) and their maintenance, currently done by a property management company. Our own homes are our own affair internally, its the outside communal areas that I have the interest. The aim being to control costs and possibly reduce them, by proactively managing the property using historical data to predict issues and also to scrutinise maintenance charges against such data to ensure that the costs are as expected. Trending could also be established whereby recurrences of things can be detected and pre-empted to reduce costs. As a software professional, I'm aware of Bugzilla, eventum being free tools for software - which could be customised to fit this application, but wondered if there was something more appropriate. It might be useful for such software to be on a web server, with secure access, so that residents can log in and view the issues.

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  • Windows: disable remote access of local drive, even by domain admin

    - by Matt
    We have a network of Windows 7 PCs that are managed as part of a domain. What we want is for the domain admin to be unable to view the PC's local drive (C:) unless he is physically at the PC. In other words, no remote desktop and no ability to use UNC. In other words, the domain admin should not be allowed to put \\user_pc\c$ in Windows Explorer and see all the files on that computer, unless he is physically present at the PC itself. Edit: to clarify some of the questions/comments that have come up. Yes, I am an admin---but a complete Windows novice. And yes, for the sake of this and my similar questions, it is fair to assume that I am working for someone who is paranoid. I understand the arguments about this being a "social problem versus a technical problem", and "you should be able to trust your admins", etc. But this is the situation in which I find myself. I'm basically new to Windows system administration, but am tasked with creating an environment that is secure by the company owner's definition---and this definition is clearly very different from what most people expect. In short, I understand that this is an unusual request. But I'm hoping there is enough expertise in the ServerFault community to point me in the right direction.

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  • Does Guest WiFi on an Access Point make any sense? [migrated]

    - by Jason
    I have a Belkin WiFi Router which offers a feature of a secondary Guest Access WiFi network. Of course, the idea is that the Guest network doesn't have access to the computers/devices on the main network. I also have a Comcast-issues Cable Modem/Router device with mutliple wired ports, but no WiFi-capabilities. I prefer to only run one router/DHCP/NAT instead of both the Comcast Router and the Belkin Router, so I can disable the Routing functions of the Belkin and allow the Comcast Router to But if I disable the Routing functions of the Belkin device, the Guest WiFi network is still available. Is this configuration just as secure as when the Belkin acts as a Router? I guess the question comes down to this: Do Guest WiFi's provide security by 1) only allowing requests to IPs found in-front of the device, or do they work by 2) disallowing requests to IPs on the same subnet? 1) Would mean that Guest WiFi on an access point provides no benefit 2) Would mean that the Guest WiFi functionality can work even if the device is just an access point. Or maybe something else entirely?

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