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• SSH: Connection Reset by Peer

  - by hopeless

  I have a Solaris 10 server on another network. I can ping it and telnet to it, but ssh doesn't connect. PuTTY log contains nothing of interest (they both negotiate to ssh v2) and then I get "Event Log: Network error: Software caused connection abort". ssh is defintely running: svcs -a | grep ssh online 12:12:04 svc:/network/ssh:default Here's an extract from the server's /var/adm/messages (anonymised) Jun 8 19:51:05 ******* sshd[26391]: [ID 800047 auth.crit] fatal: Read from socket failed: Connection reset by peer However, if I telnet to the box, I can login to ssh locally. I can also ssh to other (non-Solaris) machines on that network fine so I don't believe that it's a network issue (though, since I'm a few hundred miles away, I can't be sure). The server's firewall is disabled, so that shouldn't be a problem root@******** # svcs -a | grep -i ipf disabled Apr_27 svc:/network/ipfilter:default Any ideas what I should start checking? Update: Based on the feedback below, I've run sshd in debug mode. Here's the client output: $ ssh -vvv root@machine -p 32222 OpenSSH_5.0p1, OpenSSL 0.9.8h 28 May 2008 debug2: ssh_connect: needpriv 0 debug1: Connecting to machine [X.X.X.X] port 32222. debug1: Connection established. debug1: identity file /home/lawrencj/.ssh/identity type -1 debug1: identity file /home/lawrencj/.ssh/id_rsa type -1 debug1: identity file /home/lawrencj/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version Sun_SSH_1.1 debug1: no match: Sun_SSH_1.1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.0 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent Read from socket failed: Connection reset by peer And here's the server output: root@machine # /usr/lib/ssh/sshd -d -p 32222 debug1: sshd version Sun_SSH_1.1 debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: Bind to port 32222 on ::. Server listening on :: port 32222. debug1: Bind to port 32222 on 0.0.0.0. Server listening on 0.0.0.0 port 32222. debug1: Server will not fork when running in debugging mode. Connection from 1.2.3.4 port 2652 debug1: Client protocol version 2.0; client software version OpenSSH_5.0 debug1: match: OpenSSH_5.0 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-Sun_SSH_1.1 debug1: list_hostkey_types: ssh-rsa,ssh-dss debug1: Failed to acquire GSS-API credentials for any mechanisms (No credentials were supplied, or the credentials were unavailable or inaccessible Unknown code 0 ) debug1: SSH2_MSG_KEXINIT sent Read from socket failed: Connection reset by peer debug1: Calling cleanup 0x4584c(0x0) This line seems a likely candidate: debug1: Failed to acquire GSS-API credentials for any mechanisms (No credentials were supplied, or the credentials were unavailable or inaccessible

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• Protect apache2 server-status handler by password

  - by Shiplu

  In my apache2 server I access /server-status to check my current status of the web-server. I found that mods-available/status.conf contains the snippets that is responsible for showing status. <Location /server-status> SetHandler server-status Order deny,allow Deny from all Allow from localhost ip6-localhost </Location> My question is how can i make it available not only for localhost but also for remote host with authentication?

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• server restart server 2003

  - by ankur kaushik

  i have a server of hp and i facing that problem when i login the server ll restart and if i connect to remote desktop system ll work properly please solve my problem

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• Launch only the command if the previous one worked inside SSH, SHELL

  - by Namari

  I've got a SHELL script which is using a pipe to separate my 2 commands: ssh -oBatchMode=yes user@hostname "mysql -u yop -pyop -c yop | echo test" The problem is even if my connection to mysql doesn't work, it send the echo test. I would like to forbid my script to send any command if the previous command doesn't work. I search with a if condition but it seems it not possible with it :( Does anyone have an idea ? Thanks, Namari

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• Accessing a persistent ssh tunnel

  - by woowaa

  How do I pass commands (shell) to a persistent SSH tunnel rather than open a connection for every instance? I have a Python scraper running on a client server which passes URL variables and shell commands to a remote host via a reverse tunnel (forwarded port), so that the URL's are then executed on the host (python fabric ssh localhost:12345 'browser open URL'). I could make the reverse tunnel persistent but how do I echo the url/command to the session? Update - ControlMaster (built into SSH) solves this one.

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• Problem with monitoring Glassfish with JConsole..

  - by Pavel

  I have enabled JMX connection on remote Glassfish server and then I've restarted it. During starting server notified: Standard JMX Clients (like JConsole) can connect to JMXServiceURL: [service:jmx:rmi:///jndi/rmi://myserver:8686/jmxrmi] for domain management purposes. Port 8686 is opened for connections. But I can't connect to server with JConsole.. It says: Connection failed. How can I solve this problem? Thanks in advance.

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• Creating a shortcut to a program on thumb drive without drive letter

  - by Seth Spearman

  Is there a way to create a shortcut to an EXE on a USB thumb drive that will work no matter what drive letter is assigned to the thumb drive? I have a program in a folder on a thumb drive. I want to create a shortcut in the root of the thumb drive that points to the program's EXE and will work no matter what drive letter is assigned to the thumb drive. How can I do this?

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• ssl certificate for www.domain.com and domain.com

  - by user12145

  I used make-dummmy-cert that comes with apache 2.2 and ssl_mod to make a self-signed certificate, I tried www.domain.com domain.com *.domain.com, none of them would work for both www.domain.com and domain.com. The browser would say The certificate is only valid for domain.com( or www.domain.com or *.domain.com respectively) how do I make a self-signed cert that would work for both cases?

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• Windows API BackupRead failing with error 50 on Windows Storage Server 2008 R2

  - by Jason F

  We have a backup application that uses the Windows API BackupRead. It works correctly on Windows Server 2003, 2008, 2008 R2. It does not work on Storage Server 2008 R2. It always fails with error 50 - The request is not supported. The documentation for BackupRead gives no indication that it will not work with Storage Server 2008 R2. Anyone else have any experience using this API on Storage Server 2008 R2?

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• Cisco ASA: Allowing and Denying VPN Access based on membership to an AD group

  - by milkandtang

  I have a Cisco ASA 5505 connecting to an Active Directory server for VPN authentication. Usually we'd restrict this to a particular OU, but in this case users which need access are spread across multiple OUs. So, I'd like to use a group to specify which users have remote access. I've created the group and added the users, but I'm having trouble figuring out how to deny users which aren't in that group. Right now, if someone connects they get assigned the correct group policy "companynamera" if they are in that group, so the LDAP mapping is working. However, users who are not in that group still authenticate fine, and their group policy becomes the LDAP path of their first group, i.e. CN=Domain Users,CN=Users,DC=example,DC=com, and then are still allowed access. How do I add a filter so that I can map everything that isn't "companynamera" to no access? Config I'm using (with some stuff such as ACLs and mappings removed, since they are just noise here): gateway# show run : Saved : ASA Version 8.2(1) ! hostname gateway domain-name corp.company-name.com enable password gDZcqZ.aUC9ML0jK encrypted passwd gDZcqZ.aUC9ML0jK encrypted names name 192.168.0.2 dc5 description FTP Server name 192.168.0.5 dc2 description Everything server name 192.168.0.6 dc4 description File Server name 192.168.0.7 ts1 description Light Use Terminal Server name 192.168.0.8 ts2 description Heavy Use Terminal Server name 4.4.4.82 primary-frontier name 5.5.5.26 primary-eschelon name 172.21.18.5 dmz1 description Kerio Mail Server and FTP Server name 4.4.4.84 ts-frontier name 4.4.4.85 vpn-frontier name 5.5.5.28 ts-eschelon name 5.5.5.29 vpn-eschelon name 5.5.5.27 email-eschelon name 4.4.4.83 guest-frontier name 4.4.4.86 email-frontier dns-guard ! interface Vlan1 nameif inside security-level 100 ip address 192.168.0.254 255.255.255.0 ! interface Vlan2 description Frontier FiOS nameif outside security-level 0 ip address primary-frontier 255.255.255.0 ! interface Vlan3 description Eschelon T1 nameif backup security-level 0 ip address primary-eschelon 255.255.255.248 ! interface Vlan4 nameif dmz security-level 50 ip address 172.21.18.254 255.255.255.0 ! interface Vlan5 nameif guest security-level 25 ip address 172.21.19.254 255.255.255.0 ! interface Ethernet0/0 switchport access vlan 2 ! interface Ethernet0/1 switchport access vlan 3 ! interface Ethernet0/2 switchport access vlan 4 ! interface Ethernet0/3 switchport access vlan 5 ! interface Ethernet0/4 ! interface Ethernet0/5 ! interface Ethernet0/6 ! interface Ethernet0/7 ! ftp mode passive clock timezone PST -8 clock summer-time PDT recurring dns domain-lookup inside dns server-group DefaultDNS name-server dc2 domain-name corp.company-name.com same-security-traffic permit intra-interface access-list companyname_splitTunnelAcl standard permit 192.168.0.0 255.255.255.0 access-list companyname_splitTunnelAcl standard permit 172.21.18.0 255.255.255.0 access-list inside_nat0_outbound extended permit ip any 172.21.20.0 255.255.255.0 access-list inside_nat0_outbound extended permit ip any 172.21.18.0 255.255.255.0 access-list bypassingnat_dmz extended permit ip 172.21.18.0 255.255.255.0 192.168.0.0 255.255.255.0 pager lines 24 logging enable logging buffer-size 12288 logging buffered warnings logging asdm notifications mtu inside 1500 mtu outside 1500 mtu backup 1500 mtu dmz 1500 mtu guest 1500 ip local pool VPNpool 172.21.20.50-172.21.20.59 mask 255.255.255.0 no failover icmp unreachable rate-limit 1 burst-size 1 no asdm history enable arp timeout 14400 global (outside) 1 interface global (outside) 2 email-frontier global (outside) 3 guest-frontier global (backup) 1 interface global (dmz) 1 interface nat (inside) 0 access-list inside_nat0_outbound nat (inside) 2 dc5 255.255.255.255 nat (inside) 1 192.168.0.0 255.255.255.0 nat (dmz) 0 access-list bypassingnat_dmz nat (dmz) 2 dmz1 255.255.255.255 nat (dmz) 1 172.21.18.0 255.255.255.0 access-group outside_access_in in interface outside access-group dmz_access_in in interface dmz route outside 0.0.0.0 0.0.0.0 4.4.4.1 1 track 1 route backup 0.0.0.0 0.0.0.0 5.5.5.25 254 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00 timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00 timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute timeout tcp-proxy-reassembly 0:01:00 ldap attribute-map RemoteAccessMap map-name memberOf IETF-Radius-Class map-value memberOf CN=RemoteAccess,CN=Users,DC=corp,DC=company-name,DC=com companynamera dynamic-access-policy-record DfltAccessPolicy aaa-server ActiveDirectory protocol ldap aaa-server ActiveDirectory (inside) host dc2 ldap-base-dn dc=corp,dc=company-name,dc=com ldap-scope subtree ldap-login-password * ldap-login-dn cn=administrator,ou=Admins,dc=corp,dc=company-name,dc=com server-type microsoft aaa-server ADRemoteAccess protocol ldap aaa-server ADRemoteAccess (inside) host dc2 ldap-base-dn dc=corp,dc=company-name,dc=com ldap-scope subtree ldap-login-password * ldap-login-dn cn=administrator,ou=Admins,dc=corp,dc=company-name,dc=com server-type microsoft ldap-attribute-map RemoteAccessMap aaa authentication enable console LOCAL aaa authentication ssh console LOCAL http server enable http 192.168.0.0 255.255.255.0 inside no snmp-server location no snmp-server contact snmp-server enable traps snmp authentication linkup linkdown coldstart sla monitor 123 type echo protocol ipIcmpEcho 4.4.4.1 interface outside num-packets 3 frequency 10 sla monitor schedule 123 life forever start-time now crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto dynamic-map outside_dyn_map 20 set pfs crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-SHA crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map crypto map outside_map interface outside crypto isakmp enable outside crypto isakmp policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime 86400 ! track 1 rtr 123 reachability telnet timeout 5 ssh 192.168.0.0 255.255.255.0 inside ssh timeout 5 ssh version 2 console timeout 0 management-access inside dhcpd auto_config outside ! threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept webvpn group-policy companynamera internal group-policy companynamera attributes wins-server value 192.168.0.5 dns-server value 192.168.0.5 vpn-tunnel-protocol IPSec password-storage enable split-tunnel-policy tunnelspecified split-tunnel-network-list value companyname_splitTunnelAcl default-domain value corp.company-name.com split-dns value corp.company-name.com group-policy companyname internal group-policy companyname attributes wins-server value 192.168.0.5 dns-server value 192.168.0.5 vpn-tunnel-protocol IPSec password-storage enable split-tunnel-policy tunnelspecified split-tunnel-network-list value companyname_splitTunnelAcl default-domain value corp.company-name.com split-dns value corp.company-name.com username admin password IhpSqtN210ZsNaH. encrypted privilege 15 tunnel-group companyname type remote-access tunnel-group companyname general-attributes address-pool VPNpool authentication-server-group ActiveDirectory LOCAL default-group-policy companyname tunnel-group companyname ipsec-attributes pre-shared-key * tunnel-group companynamera type remote-access tunnel-group companynamera general-attributes address-pool VPNpool authentication-server-group ADRemoteAccess LOCAL default-group-policy companynamera tunnel-group companynamera ipsec-attributes pre-shared-key * ! class-map type inspect ftp match-all ftp-inspection-map class-map inspection_default match default-inspection-traffic ! ! policy-map type inspect ftp ftp-inspection-map parameters class ftp-inspection-map policy-map type inspect dns migrated_dns_map_1 parameters message-length maximum 512 policy-map global_policy class inspection_default inspect dns migrated_dns_map_1 inspect ftp inspect h323 h225 inspect h323 ras inspect http inspect ils inspect netbios inspect rsh inspect rtsp inspect skinny inspect sqlnet inspect sunrpc inspect tftp inspect sip inspect xdmcp inspect icmp inspect icmp error inspect esmtp inspect pptp ! service-policy global_policy global prompt hostname context Cryptochecksum:487525494a81c8176046fec475d17efe : end gateway# Thanks so much!

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• Packet sniffing a webserver

  - by Shawn Mclean

  I have a homework in which I should explain how I would break into a server, retrieve a file and cover my tracks. My main question: is there a way to packet sniff a remote web server? Other information would be appreciated on covering tracks.

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• any good networking book recommended? [closed]

  - by Jian Lin

  i have wanted to learn about networking and how they work. Are there books or websites that are good for them? Some things I wanted to learn about: how to write a program that works like traceroute / tracert how subnet masks work how http://192.168.1.105 works how http://127.0.0.1 works how http://localhost works how http://room3pc works how smb://room3pc works how a LAN works with or without DHCP how to connect to a mac using a URL

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• Emacs open files from a filename list

  - by crasic

  I have a largish tex project that is separated into several tex files. Everytime I want to work on it I open emacs and manually C-x C-f all the files that I want to work on. I was wondering if there is a way to open files (from command line) from a file containing a list of filenames, something like filelist.txt: file1.tex file2.tex file3.tex then do cat files | emacs -nw except that emacs doesn't support the command used as it doesn't like that stdin is reassigned. any ideas?

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• How to move a ruby on rails application to a new server

  - by ManiacZX

  I have a rails app on an old Ubuntu server I need to move onto a new machine. I haven't worked with ruby on rails so I don't really know anything about the structure of the app. I want to load this onto an Ubuntu 8.04 AMI on Amazon EC2 and am looking for any information regarding the migration process such as: Do I copy over the entire folder defined as the application root in the mongrel config (for ex: /u/apps/myapp/current) or just certain folders? Am I looking for trouble if I go with the latest versions of ruby and the various gems? Any general gotchas to look out for in the process. Current server information: root@webnode001:/# cat /proc/version Linux version 2.6.15-27-server (buildd@terranova) (gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)) #1 SMP Fri Dec 8 18:43:54 UTC 2006 root@webnode001:/# rails -v Rails 1.2.3 root@webnode001:/# mongrel_rails cluster::configure --version Version 1.0.1 root@webnode001:/# gem -v 0.9.0 root@webnode001:/# gem list -l *** LOCAL GEMS *** actionmailer (1.3.3, 1.2.5) Service layer for easy email delivery and testing. actionpack (1.13.3, 1.12.5) Web-flow and rendering framework putting the VC in MVC. actionwebservice (1.2.3, 1.1.6) Web service support for Action Pack. activerecord (1.15.3, 1.15.2, 1.14.4) Implements the ActiveRecord pattern for ORM. activesupport (1.4.2, 1.4.1, 1.3.1) Support and utility classes used by the Rails framework. cgi_multipart_eof_fix (2.1) Fix an exploitable bug in CGI multipart parsing which affects Ruby <= 1.8.5 when multipart boundary attribute contains a non-halting regular expression string. daemons (1.0.7, 1.0.5, 1.0.4, 1.0.2) A toolkit to create and control daemons in different ways eventmachine (0.7.2, 0.7.0) Ruby/EventMachine socket engine library fastercsv (1.2.0, 1.1.0) FasterCSV is CSV, but faster, smaller, and cleaner. fastthread (1.0) Optimized replacement for thread.rb primitives ferret (0.11.4) Ruby indexing library. gem_plugin (0.2.2, 0.2.1) A plugin system based only on rubygems that uses dependencies only mongrel (1.0.1, 0.3.13.4) A small fast HTTP library and server that runs Rails, Camping, Nitro and Iowa apps. mongrel_cluster (0.2.1) Mongrel plugin that provides commands and Capistrano tasks for managing multiple Mongrel processes. mysql (2.7) MySQL/Ruby provides the same functions for Ruby programs that the MySQL C API provides for C programs. piston (1.3.3) Piston is a utility that enables merge tracking of remote repositories. rails (1.2.3, 1.1.6) Web-application framework with template engine, control-flow layer, and ORM. rake (0.7.3, 0.7.1) Ruby based make-like utility. sources (0.0.1) This package provides download sources for remote gem installation swiftiply (0.5.1) A fast clustering proxy for web applications.

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• Windows server 2008 R2 error :The page file is to small to complete the action

  - by kishore

  I have a windows server 2008 R2 standard edition. The system suddenly stopped accepting remote desktop connections. When I tried to connect directly to the console, I am unable to start any applications. I got errors "The page file is to small to complete the action". Under takmanager in performance the system shows "Commit(GB) 127/127". What does this imply? The system has 32 GB ram, 5 raid disks each 150 Gb

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• Puppet - Possible to use software design patterns in modules?

  - by Mike Purcell

  As I work with puppet, I find myself wanting to automate more complex setups, for example vhosts for X number of websites. As my puppet manifests get more complex I find it difficult to apply the DRY (don't repeat yourself) principle. Below is a simplified snippet of what I am after, but doesn't work because puppet throws various errors depending up whether I use classes or defines. I'd like to get some feed back from some seasoned puppetmasters on how they might approach this solution. # site.pp import 'nodes' # nodes.pp node nodes_dev { $service_env = 'dev' } node nodes_prod { $service_env = 'prod' } import 'nodes/dev' import 'nodes/prod' # nodes/dev.pp node 'service1.ownij.lan' inherits nodes_dev { httpd::vhost::package::site { 'foo': } httpd::vhost::package::site { 'bar': } } # modules/vhost/package.pp class httpd::vhost::package { class manage($port) { # More complex stuff goes here like ensuring that conf paths and uris exist # As well as log files, which is I why I want to do the work once and use many notify { $service_env: } notify { $port: } } define site { case $name { 'foo': { class 'httpd::vhost::package::manage': port => 20000 } } 'bar': { class 'httpd::vhost::package::manage': port => 20001 } } } } } That code snippet gives me a Duplicate declaration: Class[Httpd::Vhost::Package::Manage] error, and if I switch the manage class to a define, and attempt to access a global or pass in a variable common to both foo and bar, I get a Duplicate declaration: Notify[dev] error. Any suggestions how I can implement the DRY principle and still get puppet to work? -- UPDATE -- I'm still having a problem trying to ensure that some of my vhosts, which may share a parent directory, are setup correctly. Something like this: node 'service1.ownij.lan' inherits nodes_dev { httpd::vhost::package::site { 'foo_sitea': } httpd::vhost::package::site { 'foo_siteb': } httpd::vhost::package::site { 'bar': } } What I need to happen is that sitea and siteb have the same parent "foo" folder. The problem I am having is when I call a define to ensure the "foo" folder exists. Below is the site define as I have it, hopefully it will make sense what I am trying to accomplish. class httpd::vhost::package { File { owner => root, group => root, mode => 0660 } define site() { $app_parts = split($name, '[_]') $app_primary = $app_parts[0] if ($app_parts[1] == '') { $tpl_path_partial_app = "${app_primary}" $app_sub = '' } else { $tpl_path_partial_app = "${app_primary}/${app_parts[1]}" $app_sub = $app_parts[1] } include httpd::vhost::log::base httpd::vhost::log::app { $name: app_primary => $app_primary, app_sub => $app_sub } } } class httpd::vhost::log { class base { $paths = [ '/tmp', '/tmp/var', '/tmp/var/log', '/tmp/var/log/httpd', "/tmp/var/log/httpd/${service_env}" ] file { $paths: ensure => directory } } define app($app_primary, $app_sub) { $paths = [ "/tmp/var/log/httpd/${service_env}/${app_primary}", "/tmp/var/log/httpd/${service_env}/${app_primary}/${app_sub}" ] file { $paths: ensure => directory } } } The include httpd::vhost::log::base works fine, because it is "included", which means it is only implemented once, even though site is called multiple times. The error I am getting is: Duplicate declaration: File[/tmp/var/log/httpd/dev/foo]. I looked into using exec, but not sure this is the correct route, surely others have had to deal with this before and any insight is appreciated as I have been grappling with this for a few weeks. Thanks.

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• windows server and telnet, what can you do?

  - by Blankman

  On a windows server (2008), can you even telnet into the server? (not remote desktop, but via the command line) If yes, is there much control really? How do people automate if you can't telnet? (assuming you can't)

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• Linux Newbie: SSH or VNC for linux admin tasks

  - by Dirk

  Longtime Windows user, looking to get my feet wet with Linux. Since Windows makes comparatively little use of the command line, I'm naturally more comfortable with GUI tools for remote server administration tasks. However, before i rush out and install a VNC server on my Linux box, I want to get a sense of how many of Linux's various packages actually offer GUI front end. If not many, then it's probably not worth the effort.

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• Internet connection sharing between Windows XP and Windows 7

  - by Dave

  I bought my lil sister's netbooks for Christmas and I've been having a heck of a time trying to get Internet Connection Sharing to work. The host computer is a Windows XP box and it uses a US Cellular 3G modem dongle thingy to set it's Internet access. Additionally I have a hard wire plugged into the LAN1 port of the router described below. (I tried the WAN port out of desperation but things didn't seem happy that way.) Additionally they have a linksys router (can't remember specific model number, I will find this out) that I was using to take advantage of it's wireless capabilities. Originally thought about updating the router to use dd-wrt, but after reading the instructions it looked like to much of a pita (had to downgrade firmware, then install dd-wrt) to set up, eventually I caved, out of desperation, and ended up successfully installing dd-wrt on the router. I have DHCP turned off on the router, actually all I could select was DHCP forwarder. The netbooks both have windows 7 starter installed on them. Initially, I had the networks joined to a homegroup but I dropped that and everyone is able to see everyone in their respective network explorers. When I turn on Internet Connection Sharing on the host, its IP on the LAN changed to 192.168.0.1, so I arbitrarily decided to assign the router to port 192.168.0.100. When I connect the netbooks they get IPs dynamically. As I stated before, everyone can see everyone in the network explorer, and shares can be accessed. The weird thing is that everyone can ping the router but they cannot ping each others IPs. The status on the netbooks says that there is no Internet Connectivity. Another thing I tried was manually setting the DNS servers on the netbooks to the DNS servers that the host computer has. The funny thing is when I ping an outside domain such as google.com the IP address resolves, however I get no responses from the pings. When I tried plugging the host into the WAN port I could ping the router, nor could I access the router's web access admin. Another thing I tried was turning off the firewall on the netbooks and the firewall off on the host computer for the LAN connection, and they still could not ping each other. Also I thought I should be able to start a remote desktop connection but I couldn't do that either, I also checked to make sure that computers would in fact accept a request for remote desktop connections.

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• resume file copy linux

  - by Andrew Johnson

  How do I resume a copy of a large file in linux? I have a huge file (serveral gigabyes) partially copied to a network drive, and it took a long time, and it was mostly done before the copy operation stopped due to a network problem that is now fixed. How do I resume the file copy. I don't want an inefficient script, and ecp didn't work (it doesn't seem to work for large files).

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• RDC and black screen mystery

  - by Vidar

  The following are all Windows 7 64 bit Business edition computers. I have a PC (lets call it "PC1") that I remotely access now and again using Remote Desktop Connection (RDC) on my laptop downstairs. Sometimes when I physically go back to sit at PC1, the screen is black and there is no way for me to wake it into life, no login screen or anything - the PC is still on and I am always forced to do a hard reboot. What can I do to stop this happening, it's really annoying.

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• Is there a GOOD RDP client under Linux that will give me all 64K colors?

  - by jfmessier

  I want to RDP to Windows 2003 servers, but if I use the default RDP client under Linux, I have only 16 or 256 colors, instead of the 16-bit colors. The display is also very slow. What are the good RDP clients I can install on my server? This is a server on which I cannot install anything like VNC, or other remote access solutions. I have to stick to RDP.

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• Can not access IIS7 website externally - but can locally

  - by mactruck

  I have 2 websites, site A running on port 80 and site B configured to run on port 8080. I can access site A no problem, but site B I can only access from the local web server machine. Externally it is not accessable, I have tried the url and ip and neither work. I have tried different configuring on port 8081 as a test and that didnt work either. What IIS settings should I look at?

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• using ftp or webdav?

  - by ajsie

  if i want to mount remote folders in my mac and use them as a local one, should i use webdav over ftp? basically, i have read that webdav is better than ftp (old protocol). does this mean that i should never use ftp and only webdav?

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• Is real-time or synchronous replication possible over WAN link?

  - by johnnyb10

  The company I work for is looking to implement truly real-time file replication with file locking over a WAN link that spans over 2000 miles. We currently have a 16-drive SAN setup in our east coast office. We also have an office out in Colorado that will have the same exact SAN setup. The idea is to have those two SANs contain the same exact data at all times, which will allow us to work with the same data pool, and which will also provide use with an offsite backup solution, should a failure occur on either end. We're running Server 2008. The objective is to enable users in the east coast office to work on files and have those changes be instantly updated on the Colorado SAN as well. We also need there to be file locking so that there will be no conflicts or overwritten changes if users attempt to work on the same file. Is this scenario even possible, at speeds that would make the files usable? And if so, what software would we need to pull this off? As I understand it, DFS-R does not provide file locking, so if we used that, we would need to go with a third-party product like Peerlock. But I don't even know if DFS-R is an option. Can it replicate quickly enough over a WAN link? Can any product? It seems that if we were to use synchronous replication, the programs would be unacceptably slow, as every write would have to wait for confirmation from the other end of the link. But if we used asynchronous replication, what kind of latency would we be looking at? There is a product from GlobalScape called WAFS that claims to provide "File coherence with real-time file locking, file release, and synchronization" and says that "As files are modified, changes are mirrored instantly using intelligent byte-level differencing to minimize the impact on network bandwidth". So this sounds like synchronous replication, but that doesn't even seem possible, given physical limitations such as the speed of light. If anyone has any experience with this kind of setup, or knows whether it's even possible, I'd appreciate your input and suggestions, including recommendations for software that we should check out.

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