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• SSH connection problem - allowed from LAN but not WAN

  - by Kerem Ulutas

  I tried to setup my Arch Linux installation to be an SSH host, but here is the thing: I can ssh localhost, it fails to login via public key and asks for username and password, but still able to login. When I try ssh my_wan_ip it gives ssh_exchange_identification: Connection closed by remote host error. I've read all topics about this error and none helped me. By the way, just confirmed, it gives ssh: connect to host my_dyndns_hostname port 22: Connection refused from another machine (outside of my network, it has different wan ip). I have sshd: ALL in "hosts.allow", ALL:ALL in "hosts.deny". I am able to connect to my own pc via ssh, ping my own pc, but my ssh setup seems to be the problem, it gives that annoying error when I try to ssh from wan. /etc/ssh/ssh_config /etc/ssh/sshd_config And finally, here is the debug output for both sshd and ssh: (i ran ssh command and i took output to sshd debug after that): sshd debug ssh debug I can edit my question according to your needs. Just ask for any more information needed. BTW I have no iptables running. I have one cable dsl modem connected to a asus wl-330gE wireless access point, they both have their firewall disabled. I configured NAT so port 22 is directed to the pc I'm having this trouble. Any help appreciated, thanks..

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• linux command prompt ftp to ftp server running on windows

  - by Vass

  Hi, I am using on Windows Vista, Filezilla server. I have it set up to be accessed via outside IPs and when I use a client on the IP I have it connects normally using Filezilla client. On the same machine I have Ubuntu running in a virtual box and when using filezilla client in there it works fine. Now I want to try the command prompt. So I do the ftp xxx.xxx.xx.xx I enter the name and password and i get the ftp command prompt, but the commands are not working properly. when trying "ls" or "cd" these commands do not work. "cd" tells me that the current directory is "/" root, but this does not make sense in the windows operating system. Now the filezilla client is taking the user in the application window directly to the root folder of the permitted filespace granted to that user. How can the same be done from the command prompt, if there is a way? It is as if the command prompt takes me to the root which does not exist or even have correct permissions to move in. Is there any way to be taken to the correct directory directly, or move there especially when the slashes are the wrong way around etc? Best,

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• Creating a pseudoterminal to make sudo happy

  - by larsks

  I need to automate the provisioning of a cloud instance (running Fedora 17) for which the following initial facts are true: I have ssh-key based access to a remote user (cloud) That user has password-free root access via sudo. Manual configuration is as simple as logging in and running sudo su - and having at it, but I would like to fully automate this process. The trick is that the system defaults to having the requiretty option enabled for sudo, which means that an attempt to do something like this: ssh remotehost sudo yum -y install puppet Will fail: sudo: sorry, you must have a tty to run sudo I am working around this right now by first pushing over a small Python script that will run a command on a pseudoterminal: import os import sys import errno import subprocess pid, master_fd = os.forkpty() if pid == 0: # child process: now that we're attached to a # pty, run the given command. os.execvp(sys.argv[1], sys.argv[1:]) else: while True: try: data = os.read(master_fd, 1024) except OSError, detail: if detail.errno == errno.EIO: break if not data: break sys.stdout.write(data) os.wait() Assuming that this is named pty, I can then run: ssh remotehost ./pty sudo yum -y install puppet This works fine, but I'm wondering if there are solutions already available that I haven't considered. I would normally think about expect, but it's not installed by default on this system. screen can do this in a pinch, but the best I came up with was: screen -dmS sudo somecommand ...which does work but eats the output. Are there any other tools available that will allocate a pseudoterminal for me that are going to be generally available?

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• not able to register sip user on red5server, using red5phone

  - by sunil221

  I start the red5, and then i start red5phone i try to register sip user , details i provide are username = 999999 password = **** ip = asteriskserverip and i got --- Registering contact -- sip:[email protected]:5072 the right contact could be --- sip :99999@asteriskserverip this is the log: SipUserAgent - listen -> Init... Red5SIP register [SIPUser] register RegisterAgent: Registering contact <sip:[email protected]:5072> (it expires in 3600 secs) RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout RegisterAgent: Failed Registration stop try. Red5SIP Client leaving app 1 Red5SIP Client closing client 35C1B495-E084-1651-0C40-559437CAC7E1 Release ports: sip port 5072 audio port 3002 Release port number:5072 Release port number:3002 [SIPUser] close1 [SIPUser] hangup [SIPUser] closeStreams RTMPUser stopStream [SIPUser] unregister RegisterAgent: Unregistering contact <sip:[email protected]:5072> SipUserAgent - hangup -> Init... SipUserAgent - closeMediaApplication -> Init... [SIPUser] provider.halt RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout please let me know if i am doing anything wrong. regards Sunil

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• Windows 8 Pro Homegroup Not Allowing Access to Shared Files

  - by Jack Herr

  I have two pc's and a laptop. With all three running Windows 7, homegroup worked perfectly, with all computers able to access the files on the others exactly as one would expect. I installed Windows 8 Pro, which I downloaded recently from the MSDN website, on the laptop. From the info on the MSDN website, I believe the version downloaded is the official release version, not a release candidate. The install preserved all settings, apps, and files. I cannot connect to the homegroup from the laptop. Well, not exactly. I joined the homegroup during the install, and later left and rejoined, that was advertised as being offered by one of the pc's (not sure why that one was picked and not the other or both). This homegroup appears in my "computer" folder in the file explorer, offering files from that pc. But it excludes documents (only the music, pix, videos, and playlists folders on the one computer appear). I can actually access those files from the laptop. But the Homegroup folder, which actually shows all the computers by account and computer name and includes documents from both computers, does not open those folders when clicked. The computers listed by name in the Network folder give me a login that doesn't work. It asks for a username and password, no combinations of which work. Further, the following error message appears before the login is even attempted: "The system cannot contact a domain controller to service the authentication request. Please try again later." The two windows 7 pc's continue to share all files, including documents, seemlessly. I can also get to the laptop shared files, which I shared during setup, from either pc. Any ideas?

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• Running phpmyadmin xampp Ubuntu 12.10

  - by Luigi Tiburzi

  I know it is a common problem and there are many solutions on the web but I'm trying everything and anything is working, I can't have phpmyadmin running on my machine. I installed XAMPP through: sudo tar xvfz ./Downloads/xampp-linux-1.8.1.tar.gz -C /opt then I did the chmod trick supposed to make an end to access issues and I change the default location to my php projects from /var/www to Dropbox/php. Then I started XAMPP in the usual way: sudo /opt/lampp/lampp start When I tried to run one of my php projects the output on the web is fine but if for example I try to write localhost on my browser I get: It works and not the usual XAMPP interface and most of all when I try to access localhost/phpmyadmin I get the login page, insert username (root) and password and I get: You don't have permission to access /phpmyadmin/index.php on this server. Apache/2.2.22 (Ubuntu) Server at localhost Port 80 I tried the Required all granted trick and some others but nothing is working. I even tried to uninstall phpmyadmin and reinstall it but this is not working too. I don't know hot to proceed. Thanks for your help.

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• Set proper rights for sshfs mountpoint so it can be shared with samba

  - by CS01

  I have a domain hoster that provides access via SSH. My platforms are: Gentoo 2.6.36-r5 Windows (XP/Vista/7) I work on my Windows, I use Gentoo to do all the magic Windows can't do. Therefore I use sshfs to mount the remote public directory for my domain to /mnt/mydomain.com. Authentication is done via keys, so lazy me don't have to type in my password every now and then. Since I do my coding on Windows, and I don't want to upload/download the changed files all the time, I want to access this /mnt/mydomain.com via a samba share. So I shared /mnt in samba, all mounts except mydomain.com is listed on my Windows Explorer. My theories are: sshfs does not set the mountpoint uid/gid to something that samba expects samba does not know that it has to include the uid/gid that /mnt/mydomain.com has been set. All above is wrong, and I don't know. Here are configs and output from console, need anything else just let me know. Also no errors or warnings that I take notice of being relevant to this issue, but I might be wrong. gentoo ~ # ls -lah /mnt total 20K drwxr-xr-x 9 root root 4.0K Mar 26 16:15 . drwxr-xr-x 18 root root 4.0K Mar 26 2011 .. -rw-r--r-- 1 root root 0 Feb 1 16:12 .keep drwxr-xr-x 1 root root 0 Mar 18 12:09 buffer drwxr-s--x 1 68591 68591 4.0K Feb 16 15:43 mydomain.com drwx------ 2 root root 4.0K Feb 1 16:12 cdrom drwx------ 2 root root 4.0K Feb 1 16:12 floppy drwxr-xr-x 1 root root 0 Sep 1 2009 services drwxr-xr-x 1 root root 0 Feb 10 15:08 www /etc/samba/smb.conf [mnt] comment = Mount points writable = yes writeable = yes browseable = yes browsable = yes path = /mnt /etc/fstab sshfs#[email protected]:/home/to/pub/dir/ /mnt/mydomain.com/ fuse comment=sshfs,noauto,users,exec,uid=0,gid=0,allow_other,reconnect,follow_symlinks,transform_symlinks,idmap=none,SSHOPT=HostBasedAuthentication 0 0 For an easier read: [email protected] /home/to/pub/dir/ /mnt/mydomain.com/ options: comment=sshfs noauto users exec uid=0 gid=0 allow_other reconnect follow_symlinks transform_symlinks idmap=none SSHOPT=HostBasedAuthentication Help!

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• OpenLDAP ACLs are not working

  - by Dr I

  First things first, I'm currently working with an OpenLDAP: slapd 2.4.36 on a Fedora release 19 (Schrödinger’s Cat). I've just install the openldap with yum and my configuration is the following one: ##### OpenLDAP Default configuration ##### # ##### OpenLDAP CORE CONFIGURATION ##### include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/nis.schema pidfile /var/lib/ldap/slapd.pid loglevel trace ##### Default Schema ##### database mdb directory /var/lib/ldap/ maxsize 1073741824 suffix "dc=domain,dc=tld" rootdn "cn=root,dc=domain,dc=tld" rootpw {SSHA}SECRETP@SSWORD ##### Default ACL ##### access to attrs=userpassword by self write by group.exact="cn=administrators,ou=builtin,ou=groups,dc=domain,dc=tld" write by anonymous auth by * none I launch my OpenLDAP service using: /usr/sbin/slapd -u ldap -h ldapi:/// ldap:/// -f /etc/openldap/slapd.conf As you can see it's a pretty simple ACL which aim to allow access to the userPassword attribute to a specific group read only, then to the owner read and write to anonymous requiring auth and refuse the access to everyone else. The problem is: Even using a valid user with correct password my ldapsearch ends with zero informations retrieved from the directory, plus I've got a strange response on the result line. # search result search: 2 result: 32 No such object # numResponses: 1 here is the ldapsearch request: ldapsearch -H ldap.domain.tld -W -b dc=domain,dc=tld -s sub -D cn=user,ou=service,ou=employees,ou=users,dc=domain,dc=tld I did not specify any filter as I want to check that ldapsearch is correctly printing only allowed attribute.

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• Add single sign-on into existing web app

  - by EvilDr

  Apologies if this isn't the best site, I've search for an answer but can't find anything quite right. I don't actually now the correct terminology I should be using here, so any pointers will be appreciated. I have a web application that accessed by many different users across different organisations. Access is provided by each user having a unique username/password which is stored in SQL (database fields are customerID, userID, username). Some organisations are now asking if we can change this to allow "Active Directory single sign-on" so that users don't need to remember yet another set of login details. From research I can see how this is achieved using OpenAuth and Google (etc), but I know hardly anything about AD and can't find much information on this (again I'm sure it helps when you know the terminology). Is this request even possible to achieve, given that most users will be from different (and unrelated) organisations? I saw on a Microsoft Build video not long ago that there is some kind of replication service for AD to allow Cloud authentication. Is this what I should be aiming for?

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• Office 365 domain federation conversion failed

  - by Matt Bear

  We're doing things backwards, we have an established o365 domain, with 400+ users, and are just now deploying local AD, and ADFS for SSO. Last night, after configuring my servers, I ran the powershell command convert-MSOLdomaintofederated to convert the xxx.com vanity domain to federated, it errored out with an unspecified error(Microsoft ADFS support said the error has to do with the default password settings being changed.) And when I run convert-MSOLdomaintostandard, it comes back with the domain is already standard. Also in the o365 portal it shows the domain as standard, however it is trying to process login attempts as if it were a federated domain. I've spent 5 hours total on the phone with Microsoft, and it has been escalated to their engineering department for resolution, sometime within the next few days... I need it yesterday. From what we can gather, the conversion process started, error out, changed some of the internal configurations to federated, but left the description as standard.(if that makes since). So its in a weird limbo, where its in both modes but neither at the same time. Currently, the only way to fix it is to remove the vanity domain, and re-add it. I need a way to dissociate the user accounts from xxx.com domain to allow its removal. Removal of all the users themselves is not an option.

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• How to setup firewall to allow internet connection sharing via Wifi USB stick?

  - by hannanaha

  I have a Windows8 computer linked to the internet via an ethernet cable ("Ethernet" network connection). I have attached to it a DLink Wifi USB stick, and I'm trying to share the main PC's internet connection with my Android phone via a local wifi network. I am using the following batch file to set up this network: netsh wlan set hostednetwork mode=allow ssid=MyWifiName key=password keyUsage=persistent netsh wlan start hostednetwork After I run this script, I can see a new network connection appear in "Control Panel\Network and Internet\Network Connections" named "Local Area Connection *12", and I can see "MyWifiName" on the Android phone. The device name for this connection on the PC is "Microsoft Hosted Network Virtual Adapter". I also set up the "Ethernet" connection to share Internet with "Local Area Connection *12". However, the Android phone usually doesn't manage to obtain an IP from the wireless network, and when it does, there still seems to be no connectivity to the internet. When I turn off the Windows Firewall completely, or even just for "Local Area Connection *12", the Android connection is perfect. My questions are: How should I set up the Windows firewall to allow the phone to connect properly? Is there a specific rule I need to add to the Windows firewall advanced settings? [Note: the above method worked great in Windows 7, without any specific tinkering with the firewall]. Is it safe to turn off the firewall specifically for the "Local Area Connection *12" (the wifi connection) if the main Ethernet connection is still protected by the firewall? Thanks in advance.

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• Prevent Windows from resizing all the apps on the desktop when switching monitors

  - by Greg Hewgill

  Short version: When moving my laptop and sleeping between using different monitors, all my open windows are crammed into the upper left corner as if they tried to fit on the laptop internal screen resolution. I plug in and switch to the external monitor before unlocking my session. Is there a way to prevent this automatic resizing? Longer version: I have a laptop that I move between two locations. I have one docking station, and the same kind of monitor configured for 1600x1200, in both locations. The internal laptop screen is awful so I don't use it. Location A: Docking station, monitor connected via DVI. Location B: No docking station, external monitor connected via VGA cable. In this location I have the laptop lid open for keyboard access but I don't use the laptop screen. When moving from Location A to Location B, the laptop wakes up from sleep, displaying the screen on the internal monitor. I switch to the external monitor display (using Fn+F8 on this laptop), and only after that do I unlock my session with my password. However, Windows has crammed all my nicely arranged windows into the upper left corner as if it were trying to fit them all on the laptop internal screen resolution. When moving from Location B to Location A, I have the laptop lid closed when using the docking station so Windows apparently concludes the screen resolution is 1600x1200 and doesn't resize any windows. The laptop is a Dell Latitude running Windows 7 Professional.

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• How to clone MySQL DB? Errors with CREATE VIEW/SHOW VIEW privileges

  - by user38071

  Running MySQL 5.0.32 on Debian 4.0 (Etch). I'm trying to clone a WordPress MySQL database completely (structure and data) on the same server. I tried doing a dump to a .sql file and an import into a new empty database from the command line, but the import fails with errors saying the user does not have the "SHOW VIEW" or "CREATE VIEW" privilege. Trying it with PHPMyAdmin doesn't work either. I also tried doing this with the MySQL root user (not named "root" though) and it shows an "Access Denied" error. I'm terribly confused as to where the problem is. Any pointers on cloning a MySQL DB and granting all privileges to a user account would be great (specifically for MySQL 5.0.32). The SHOW GRANTS command for the existing user works (the one who has privileges over the source database). It shows that the user has all privileges granted. I created a new user and database. Here's what I see with the grant commands. $ mysql -A -umyrootaccount --password=myrootaccountpassword mysql> grant all privileges on `newtarget_db`.* to 'newtestuser'@'localhost'; ERROR 1044 (42000): Access denied for user 'myrootaccount'@'localhost' to database 'newtarget_db' mysql> grant all privileges on `newtarget_db`.* to 'existingsourcedbuser'@'localhost'; ERROR 1044 (42000): Access denied for user 'myrootaccount'@'localhost' to database 'newtarget_db'

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• can't ssh from mac to windows (running ssh server on cygwin)

  - by Denise

  I set up an ssh server on a fresh windows 7 machine using the latest version of cygwin. Disabled the firewall. I can ssh into it from itself, from a different windows box (using winssh), and from a linux vm. In spite of that, I tried to ssh in from two different macs, and neither would let me! This is the debug output: OpenSSH_5.1p1, OpenSSL 0.9.7l 28 Sep 2006 debug1: Reading configuration data /etc/ssh_config debug1: Connecting to 3dbuild [172.18.4.219] port 22. debug1: Connection established. debug1: identity file /Users/Denise/.ssh/identity type -1 debug1: identity file /Users/Denise/.ssh/id_rsa type 1 debug1: identity file /Users/Denise/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5 debug1: match: OpenSSH_5.5 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-cbc hmac-md5 none debug1: kex: client->server aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '3dbuild' is known and matches the RSA host key. debug1: Found key in /Users/Denise/.ssh/known_hosts:43 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Trying private key: /Users/Denise/.ssh/identity debug1: Offering public key: /Users/Denise/.ssh/id_rsa Connection closed by [ip] It shows the same output, and fails at the same place, whether I have put my public key on the ssh server or not. Any help would be appreciated-- hopefully someone has run into this before?

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• CentOS 5 VPN Server won't work

  - by Miro Markarian

  I have a CentOS 5 server configured to be both a L2TP server and a PPTP server + a radius server for hosting the AAA. My problem is that, the L2TP works great and I can connect to it, but can't connect to PPTP and every-time it ends up with error #619 when it gets to the verifying username and password section. Here is the log I got from /var/log/messages Dec 17 07:40:02 serverdl pptpd[8570]: CTRL: Client 5.52.247.62 control connection started Dec 17 07:40:03 serverdl pptpd[8570]: CTRL: Starting call (launching pppd, opening GRE) Dec 17 07:40:03 serverdl pppd[8571]: Plugin radius.so loaded. Dec 17 07:40:03 serverdl pppd[8571]: RADIUS plugin initialized. Dec 17 07:40:03 serverdl pppd[8571]: Plugin radattr.so loaded. Dec 17 07:40:03 serverdl pppd[8571]: RADATTR plugin initialized. Dec 17 07:40:03 serverdl pppd[8571]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded. Dec 17 07:40:03 serverdl pppd[8571]: pptpd-logwtmp: $Version$ Dec 17 07:40:03 serverdl pppd[8571]: pppd 2.4.4 started by root, uid 0 Dec 17 07:40:03 serverdl pppd[8571]: Using interface ppp0 Dec 17 07:40:03 serverdl pppd[8571]: Connect: ppp0 <--> /dev/pts/2 Dec 17 07:40:03 serverdl pptpd[8570]: GRE: read(fd=7,buffer=80515e0,len=8260) from network failed: status = -1 error = Protocol not available Dec 17 07:40:03 serverdl pptpd[8570]: CTRL: GRE read or PTY write failed (gre,pty)=(7,6) Dec 17 07:40:03 serverdl pppd[8571]: Modem hangup Dec 17 07:40:03 serverdl pppd[8571]: Connection terminated. Dec 17 07:40:03 serverdl pppd[8571]: Exit. Dec 17 07:40:03 serverdl pptpd[8570]: CTRL: Client 5.52.247.62 control connection finished Just yesterday when I hadn't set up the L2TP yet PPTP was working great but then I uninstalled it and removed all it's config from /etc/* and installed L2TP first and then installed PPTP after it. and then it stopped to work. I believe it must be a radiusclient issue because both of the PPTP and L2TP services use radius to authenticate. And another thing I think must be the issue is that when assigning IPs to the PPP interfaces, I have done the following config. Is that right? For L2TP: localip 10.10.10.1 remoteip 10.10.10.2-254 For PPTP: localip 10.10.9.1 remoteip 10.10.9.2-254

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• Nginx 502 Bad Gateway: It just won't stop

  - by David

  I have the same problem that most people seem to have with Nginx: 502 bad gateway errors. They are intermittent but typically happen more than once per session, which means my users are probably running into it nearly every time they use the app. I've tried adjusting fastcgi_buffers and fastcgi_buffer_size (in both directions) to no avail. I've tried various other things with the configuration file but nothing seems to work. Here's my config (note that I've stripped away most of the things I've tried, since they didn't work and I didn't want to bloat the file with a bunch of un-related directives): server { root /usr/share/nginx/www/; index index.php; # Make site accessible from http://localhost/ server_name localhost; # Pass PHP scripts to PHP-FPM location ~ \.php { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:9000; } # Lock the site location / { auth_basic "Administrator Login"; auth_basic_user_file /usr/share/nginx/.htpasswd; } # Hide the password file location ~ /\. { deny all; } client_max_body_size 8M; } I'm running a small Rackspace cloud server, which should be plenty for handling an app with a small user base...

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• Apache: redirect to https before AUTH for server-status

  - by Putnik

  I want to force https and basic auth for server-status output (mod_status). If I enable auth and user asks for http://site/server-status apache first asks for pass, then redirects to httpS, then asks for pass again. This question is similar to Apache - Redirect to https before AUTH and force https with apache before .htpasswd but I cannot get it work because we are speaking not about generic folder but Location structure. My config (shortly) is as follows: <Location /server-status> SSLRequireSSL <IfModule mod_rewrite.c> RewriteEngine on RewriteBase /server-status RewriteCond %{HTTPS} off RewriteCond %{SERVER_PORT} 80 RewriteRule ^ - [E=nossl] RewriteRule (.*) https://site/server-status} [R=301,L] </IfModule> SetHandler server-status Order deny,allow Deny from all Allow from localhost ip6-localhost Allow from 1.2.3.0/24 Allow from env=nossl AuthUserFile /etc/httpd/status-htpasswd AuthName "Password protected" AuthType Basic Require valid-user Satisfy any </Location> I assume Allow from env=nossl should allow everyone with RewriteCond %{HTTPS} off and server port 80, then force it to redirect but it does not work. Please note, I do not want force to SSL the whole site but /server-status only. If it matters the server has several sites. What am I doing wrong? Thank you.

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• Help about pure-ftp

  - by hai

  I setup pure-ftp on freebsd behind firewall. On pure-ftp setuped passsi mode ftp(rangle port 50400-50600) and firewall open port from 50400-50600 (include mode IN and out). But i try use ftp client connect but not connect. Nofinication error status: Connecting to 210.245.89.95:21... Status: Connection established, waiting for welcome message... Response: 220---------- Welcome to Pure-FTPd [privsep] ---------- Response: 220-You are user number 1 of 50 allowed. Response: 220-Local time is now 13:20. Server port: 21. Response: 220-IPv6 connections are also welcome on this server. Response: 220 You will be disconnected after 15 minutes of inactivity. Command: USER bk Response: 331 User bk OK. Password required Command: PASS Response: 230 OK. Current directory is / Command: SYST Response: 215 UNIX Type: L8 Command: FEAT Response: 211-Extensions supported: Response: EPRT Response: IDLE Response: MDTM Response: SIZE Response: REST STREAM Response: MLST type;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*; Response: MLSD Response: ESTA Response: PASV Response: EPSV Response: SPSV Response: ESTP Response: 211 End. Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is your current location Command: TYPE I Response: 200 TYPE is now 8-bit binary Command: PASV Response: 227 Entering Passive Mode (210,245,88,98,138,1) Command: MLSD Error: Connection timed out Error: Failed to retrieve directory listing Status: Connecting to 210.245.88.98:21... Status: Connection established, waiting for welcome message... Help me.

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• Running multiple copies of openssh-server (sshd) on Ubuntu

  - by cecilkorik

  I may be attacking this problem the wrong way, if so let me know. I have a server which is available through SSH from both the public internet and the local LAN. I would like to have two very different security policies for each, by running two copies of sshd with two different sshd_config files each on a different port. Some of the things I'd like to change is to allow password or public-key authentication on the LAN, but public-key only from the internet. All (real) users could login from the LAN side, but only certain authorized users would be individually whitelisted to login through the internet. As far as I can tell this requires having two different SSH daemons running on different ports with different sshd_configs. I am fine with the different ports part, I can easily forward port 22 to any port I want through my firewall. So my question is what is the best way to actually START the second sshd under Ubuntu 10.04 LTS. Is there a recommended way to do something like this? Surely I am not the first person with this sort of need. I have a bit of experience with upstart, and I can manually hack the second sshd into /etc/init/ssh.conf I suppose but I'm not sure if that will get overwritten by the package. However I do it, It's important to ensure both sshd processes always get restarted after any automatic or manual upgrade of the openssh-server package. Thanks in advance.

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• Multiple *NIX Accounts with Identical UID

  - by Tim

  I am curious whether there is a standard expected behavior and whether it is considered bad practice when creating more than one account on Linux/Unix that have the same UID. I've done some testing on RHEL5 with this and it behaved as I expected, but I don't know if I'm tempting fate using this trick. As an example, let's say I have two accounts with the same IDs: a1:$1$4zIl1:5000:5000::/home/a1:/bin/bash a2:$1$bmh92:5000:5000::/home/a2:/bin/bash What this means is: I can log in to each account using its own password. Files I create will have the same UID. Tools such as "ls -l" will list the UID as the first entry in the file (a1 in this case). I avoid any permissions or ownership problems between the two accounts because they are really the same user. I get login auditing for each account, so I have better granularity into tracking what is happening on the system. So my questions are: Is this ability designed or is it just the way it happens to work? Is this going to be consistent across *nix variants? Is this accepted practice? Are there unintended consequences to this practice? Note, the idea here is to use this for system accounts and not normal user accounts.

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• Spring-mvc project can't select from a particular mysql table

  - by Dan Ray

  I'm building a Spring-mvc project (using JPA and Hibernate for DB access) that is running just great locally, on my dev box, with a local MySQL database. Now I'm trying to put a snapshot up on a staging server for my client to play with, and I'm having trouble. Tomcat (after some wrestling) deploys my war file without complaint, and I can get some response from the application over the browser. When I hit my main page, which is behind Spring Security authentication, it redirects me to the login page, which works perfectly. I have Security configured to query the database for user details, and that works fine. In fact, a change to a password in the database is reflected in the behavior of the login form, so I'm confident it IS reaching the database and querying the user table. Once authenticated, we go to the first "real" page of the app, and I get a "data access failure" error. The server's console log gets this line (redacted): ERROR org.hibernate.util.JDBCExceptionReporter - SELECT command denied to user 'myDbUser'@'localhost' for table 'asset' However, if I go to MySQL from the shell using exactly the same creds, I have no problem at all selecting from the asset table: [development@tomcat01stg]$ mysql -u myDbUser -pmyDbPwd dbName ... mysql> \s -------------- mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (i686) using readline 5.1 Connection id: 199 Current database: dbName Current user: myDbUser@localhost ... UNIX socket: /var/lib/mysql/mysql.sock -------------- mysql> select count(*) from asset; +----------+ | count(*) | +----------+ | 19 | +----------+ 1 row in set (0.00 sec) I've broken down my MySQL access settings, cleaned out the user and re-run the grant commands, set up a version of the user from 'localhost' and another from '%', making sure to flush permissions.... Nothing is changing the behavior of this thing. What gives?

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• IIS 6 Windows Authentication in ASP.Net app fails

  - by Kjensen

  I am trying to install an ASP.Net app on an IIS6 webserver. The site requires the user to authenticate with windows, and this works on several other apps on the same server. In IIS I have enabled anonymous access and windows authentication. In web.config, authentication is set to: <authentication mode="Windows"/> and authorization...: <authorization> <allow roles="Users"/> <deny users="*"/> </authorization> Ie. allow all users in role "Users" and deny everybody else. This is the approach that is working with several other apps on the same server. If I run the site, I am prompted for username and password. If I remove the line: <deny users="*"/> I can access the site and everything works - but the user credentials are not passed to the site (Page.User.Identity.Name returns a blank string in ASP.Net). The site has identical (inherited) file permissions as other working sites on the server. The only difference in authentication/authorization between this site and the other working sites is, that this runs Asp.Net 4 (but there are other working asp.net 4 sites on the server as well). What am I missing here? Where should I look?

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• problems installing mysql and phpmyadmin to localhost

  - by Joel

  Hi guys, I know there have been many similar questions, but as far as I can tell, most of the other people have gotten further than I have... I'm trying to get a WAMP setup happening. I've got PHP and Apache running and talking to each other. PHP is in c:\PHP Apache is in it's default program files folder. mySQL is in it's default install location. I have localhost setup at D:\public_html\ I'm able to navigate to localhost and see html and php files. But I have a simple mySQL test file: <?php // hostname or ip of server (for local testing, localhost should work) $dbServer='localhost'; // username and password to log onto db server $dbUser='root'; $dbPass=''; // name of database $dbName='test'; $link = mysql_connect("$dbServer", "$dbUser", "$dbPass") or die("Could not connect"); print "Connected successfully<br>"; mysql_select_db("$dbName") or die("Could not select database"); print "Database selected successfully<br>"; // close connection mysql_close($link); ?> When I try and open this, I get "could not connect" Now, I haven't even created a database yet, because I can't log into mySQL with phpmyadmin-so I think I've done something wrong in my mySQL install because they aren't talking to each other. I guess my main question is how do I first create a database in mySQL to be sure I have even installed it correctly?

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• hosts.deny ignored by MacOSX 10.8

  - by David Holm

  I have been trying to set up my MacOS X Server, which I recently upgraded to Mountain Lion, to use denyhosts as I need to open port 22 to it. denyhosts is set up and adds entries to /etc/hosts.deny so I decided to add my laptops IP to it in order to verify that it actually works but I can still log in and my IP shows up in /private/var/log/system.log. I even rebooted the server once just to be sure there wasn't some service that had to be restarted. I tried the following entries: ALL: <my laptop's IP> sshd: <my laptop's IP> sshd: 127.0.0.1 My /etc/sshd_config has the following parameters set: UsePAM yes UseDNS no I Googled if deny.hosts has been deprecated in OSX 10.7 or 10.8 but I couldn't find any indications that it has. Any ideas of what is going wrong or if there is an alternative way to achieve the same result? Yes, a private key would solve this problem but for the time being I would like to stick to using password authentication. I also like the idea of denyhosts actually blocking access to all services running on the server and not just ssh.

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• Restrict SSH user to connection from one machine

  - by Jonathan

  During set-up of a home server (running Kubuntu 10.04), I created an admin user for performing administrative tasks that may require an unmounted home. This user has a home directory on the root partition of the box. The machine has an internet-facing SSH server, and I have restricted the set of users that can connect via SSH, but I would like to restrict it further by making admin only accessible from my laptop (or perhaps only from the local 192.168.1.0/24 range). I currently have only an AllowGroups ssh-users with myself and admin as members of the ssh-users group. What I want is something that works like you may expect this setup to work (but it doesn't): $ groups jonathan ... ssh-users $ groups admin ... ssh-restricted-users $ cat /etc/ssh/sshd_config ... AllowGroups ssh-users [email protected].* ... Is there a way to do this? I have also tried this, but it did not work (admin could still log in remotely): AllowUsers [email protected].* * AllowGroups ssh-users with admin a member of ssh-users. I would also be fine with only allowing admin to log in with a key, and disallowing password logins, but I could find no general setting for sshd; there is a setting that requires root logins to use a key, but not for general users.

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