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  • Ubuntu and Postfix Configuration Issues

    - by Obi Hill
    I recently installed postfix on Ubuntu Natty. I'm having a problem with the configuration. Firstly here is my postfix configuration file: # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. mydomain = $myorigin myhostname = mail.nairanode.com alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/virtual # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/virtual # this is for the mailbox location for each user virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf # and this is for aliases virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf # and this is for domain lookups virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf # this is how to connect to the domains (all virtual, but the option is there) # not used yet # transport_maps = mysql:/etc/postfix/mysql_transport.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 mydestination = $myorigin, $myhostname, localhost.localdomain, , localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all #mynetworks_style = host # ADDITIONAL unknown_local_recipient_reject_code = 550 maximal_queue_lifetime = 7d minimal_backoff_time = 1000s maximal_backoff_time = 8000s smtp_helo_timeout = 60s smtpd_recipient_limit = 16 smtpd_soft_error_limit = 3 smtpd_hard_error_limit = 12 # Requirements for the HELO statement smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit # Requirements for the sender details smtpd_sender_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_$ # Requirements for the connecting server smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.n$ # Requirement for the recipient address smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, reject_non_fqdn_recipient, reject_unknown_recipient_do$ # require proper helo at connections smtpd_helo_required = yes # waste spammers time before rejecting them smtpd_delay_reject = yes disable_vrfy_command = yes Here is also my /etc/postfix/aliases: # See man 5 aliases for format postmaster: root Here is also my /etc/mailname: nairanode.com I've also updated my hostname to nairanode.com However, when I run postalias /etc/postfix/aliases I get the following : postalias: warning: valid_hostname: invalid character 47(decimal): /etc/mailname postalias: fatal: file /etc/postfix/main.cf: parameter mydomain: bad parameter value: /etc/mailname Is there something I'm doing wrong?! I noticed that when I replace myorigin = /etc/mailname with myorigin = nairanode.com in my postfix config, I don't see any errors anymore after calling postalias. Is this a bug or something?!

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  • amazon ec2 ubuntu with gitlab and nginx - cant load?

    - by thebluefox
    Ok, so I've spooled up an Amazon EC2 server running Ubuntu, and then followed the instructions below to install GitLab; http://doc.gitlab.com/ce/install/installation.html The only step I've not been able to complete is running the following check on the status; sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production I get the following error; rake aborted! Errno::ENOMEM: Cannot allocate memory - whoami Which I presume is becuase my EC2 is just running a free tier setup, so isn't that well spec'd. Regardless, I've been trying to access this through my browser. I've set up the elastic IP and pointed my domain at it (for the purpose of this, lets say its git.mydom.co.uk). Doing a whois on this domain shows me its pointing to the right place. For some reason though, I get the "Oops, Chrome could not connect to git.mydom.co.uk". Now - for a period of time I was getting the Nginx holding page (telling me I still needed to perform configuration). This though disappeared after removing the default file from /etc/nginx/sites-enabled/ (after reading this could be issue on a troubleshooting page). Since then, I've had nothing, even when I symlinked the file back in from /sites-available. I've tried changing the owner of the git.mydom.co.uk file sat inside /sites-enabled and /sites-available to www-data, as suggested here, but I could only change the permission of the file in /sites-available, and not the symlinked one in /sites-enabled. The content of this file is as follows; upstream gitlab { server unix:/home/git/gitlab/tmp/sockets/gitlab.socket; } server { listen *:80 default_server; # e.g., listen 192.168.1.1:80; In most cases *:80 is a good idea server_name git.mydom.co.uk; # e.g., server_name source.example.com; server_tokens off; # don't show the version number, a security best practice root /home/git/gitlab/public; # Increase this if you want to upload large attachments # Or if you want to accept large git objects over http client_max_body_size 20m; # individual nginx logs for this gitlab vhost access_log /var/log/nginx/gitlab_access.log; error_log /var/log/nginx/gitlab_error.log; location / { # serve static files from defined root folder;. # @gitlab is a named location for the upstream fallback, see below try_files $uri $uri/index.html $uri.html @gitlab; } All the paths mentioned in here look ok...I'm about at the end of my knowledge now!

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  • Any way to recover ext4 filesystems from a deleted LVM logical volume?

    - by Vegar Nilsen
    The other day I had a proper brain fart moment while expanding a disk on a Linux guest under Vmware. I stretched the Vmware disk file to the desired size and then I did what I usually do on Linux guests without LVM: I deleted the LVM partition and recreated it, starting in the same spot as the old one, but extended to the new size of the disk. (Which will be followed by fsck and resize2fs.) And then I realized that LVM doesn't behave the same way as ext2/3/4 on raw partitions... After restoring the Linux guest from the most recent backup (taken only five hours earlier, luckily) I'm now curious on how I could have recovered from the following scenario. It's after all virtually guaranteed that I'll be a dumb ass in the future as well. Virtual Linux guest with one disk, partitioned into one /boot (primary) partition (/dev/sda1) of 256MB, and the rest in a logical, extended partition (/dev/sda5). /dev/sda5 is then setup as a physical volume with pvcreate, and one volume group (vgroup00) created on top of it with the usual vgcreate command. vgroup00 is then split into two logical volumes root and swap, which are used for / and swap, logically. / is an ext4 file system. Since I had backups of the broken guest I was able to recreate the volume group with vgcfgrestore from the backup LVM setup found under /etc/lvm/backup, with the same UUID for the physical volume and all that. After running this I had two logical volumes with the same size as earlier, with 4GB free space where I had stretched the disk. However, when I tried to run "fsck /dev/mapper/vgroup00-root" it complained about a broken superblock. I tried to locate backup superblocks by running "mke2fs -n /dev/mapper/vgroup00-root" but none of those worked either. Then I tried to run TestDisk but when I asked it to find superblocks it only gave an error about not being able to open the file system due to a broken file system. So, with the default allocation policy for LVM2 in Ubuntu Server 10.04 64-bit, is it possible that the logical volumes are allocated from the end of the volume group? That would definitely explain why the restored logical volumes didn't contain the expected data. Could I have recovered by recreating /dev/sda5 with exactly the same size and disk position as earlier? Are there any other tools I could have used to find and recover the file system? (And clearly, the question is not whether or not I should have done this in a different way from the start, I know that. This is a question about what to do when shit has already hit the fan.)

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  • Creating a really public Windows network share

    - by Timur Aydin
    I want to create a shared folder under Windows (actually, Windows XP, Vista, and Win 7) which can be mounted from a linux system without prompting for a username/password. But before attempting this, I first wanted to establish that this works between two Windows 7 machines. So, on machine A (The server that will hold the public share), I created a folder and set its permissions such that Everyone has read/write access. Then I visited Control Panel - Network and Sharing Center - Advanced Sharing Settings and then selected "Turn off password protected sharing". Then, on machine B (The client that wants to access the public share with no username/password prompt), I tried to "map network driver" and I was immediately prompted by a password prompt. Some search on google suggested changing "Acconts: Limit local account use of blank passwords to console logon only" to "Disabled". Tried that, no luck, still getting username/password prompt. If I enter the username/password, I am not prompted for it again and can use the share as long as the session is active. But still, I really need to access the share without any username/password transaction whatsoever and this is not just a convenience related thing. Here is the actual reason: The device that will access this windows network share is an embedded system running uclinux. It will mount this share locally and then play media files. Its only user interface is a javascript based web page. So, if there is going to be any username/password transaction, I would have to ask the user to enter them over the web page, which will be ridiculously insecure and completely exposed to packet sniffing. After hours of doing experiments, I have found one way to make this happen, but I am not really very fond of it... I first create a new user (shareuser) and give it a password (sharepass). Then I open Group Policy Editor and set "Deny log on locally" to "A\shareuser". Then, I create a folder on A and share it so that shareuser has Read access to it. This way, shareuser cannot login to A, but can access the shared folder. And, if someone discovers the shareuser/sharepass through network sniffing, they can just access the shared folder, but can't logon to A. The same thing can be achieved by enabling the Guest user and then going to Group Policy Editor and deleting the "Guest" from the "Deny access to this computer from the network" setting. Again, Guest can mount the public share, but logging in to A as Guest won't be possible, because Guest is already not allowed to log in by default. So my question would be, how can I create a network share that is truly public, so that it can be mounted from a linux machine without requiring a password? Sorry for the long question, but I wanted to explain the reason for really needing this...

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  • Puppet and launchd services?

    - by Joel Westberg
    We have a production environment configured with Puppet, and want to be able to set up a similar environment on our development machines: a mix of Red Hats, Ubuntus and OSX. As might be expected, OSX is the odd man out here, and sadly, I'm having a lot of trouble with getting this to work. My first attempt was using macports, using the following declaration: package { 'rabbitmq-server': ensure => installed, provider => macports, } but this, sadly, generates the following error: Error: /Stage[main]/Rabbitmq/Package[rabbitmq-server]: Could not evaluate: Execution of '/opt/local/bin/port -q installed rabbitmq-server' returned 1: usage: cut -b list [-n] [file ...] cut -c list [file ...] cut -f list [-s] [-d delim] [file ...] while executing "exec dscl -q . -read /Users/$env(SUDO_USER) NFSHomeDirectory | cut -d ' ' -f 2" (procedure "mportinit" line 95) invoked from within "mportinit ui_options global_options global_variations" Next up, I figured I'd give homebrew a try. There is no package provider available by default, but puppet-homebrew seemed promising. Here, I got much farther, and actually managed to get the install to work. package { 'rabbitmq': ensure => installed, provider => brew, } file { "plist": path => "/Library/LaunchDaemons/homebrew.mxcl.rabbitmq.plist", source => "/usr/local/opt/rabbitmq/homebrew.mxcl.rabbitmq.plist", ensure => present, owner => root, group => wheel, mode => 0644, } service { "homebrew.mxcl.rabbitmq": enable => true, ensure => running, provider => "launchd", require => [ File["/Library/LaunchDaemons/homebrew.mxcl.rabbitmq.plist"] ], } Here, I don't get any error. But RabbitMQ doesn't start either (as it does if I do a manual load with launchctl) [... snip ...] Debug: Executing '/bin/launchctl list' Debug: Executing '/usr/bin/plutil -convert xml1 -o /dev/stdout /Library/LaunchDaemons/homebrew.mxcl.rabbitmq.plist' Debug: Executing '/usr/bin/plutil -convert xml1 -o /dev/stdout /var/db/launchd.db/com.apple.launchd/overrides.plist' Debug: /Schedule[weekly]: Skipping device resources because running on a host Debug: /Schedule[puppet]: Skipping device resources because running on a host Debug: Finishing transaction 2248294820 Debug: Storing state Debug: Stored state in 0.01 seconds Finished catalog run in 25.90 seconds What am I doing wrong?

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  • "log on as a batch job" user rights removed by what GPO?

    - by LarsH
    I am not much of a server administrator, but get my feet wet when I have to. Right now I'm running some COTS software on a Windows 2008 Server machine. The software installer creates a few user accounts for running its processes, and then gives those users the right to "log on as a batch job". Every so often (e.g. yesterday at 2:52pm and this morning at 7:50am), those rights disappear. The software then stops working. I can verify that the user rights are gone by using secedit /export /cfg e:\temp\uraExp.inf /areas USER_RIGHTS and I have a script that does this every 30 seconds and logs the results with a timestamp, so I know when the rights disappear. What I see from the export is that in the "good" state, i.e. after I install the software and it's working correctly, the line for SeBatchLogonRight from the secedit export includes the user accounts created by the software. But every few hours (sometimes more), those user accounts are removed from that line. The same thing can be seen by using the GUI tool Local Security Policy > Security Settings > Local Policies > User Rights Assignment > Log on as a batch job: in the "good" state, that policy includes the needed user accounts, and in the bad state, the policy does not. Based on the above-mentioned logging script and the timestamps at which the user rights are being removed, I can see clearly that some GPOs are causing the change. The GPO Operational log shows GPOs being processed at exactly the right times. E.g.: Starting Registry Extension Processing. List of applicable GPOs: (Changes were detected.) Local Group Policy I have run GPOs on demand using gpupdate /force, and was able to verify that this caused the User Rights to be removed. We have looked over local group policies till our eyes are crossed, trying to figure out which one might be stripping these User Rights to "log on as a batch job." We have not configured any local group policies on this machine, that we know of; so is there a default local group policy that might typically do such a thing? Are there typical domain policies that would do this? I have been working with our IT staff colleagues to troubleshoot the problem, but none of them are really GPO experts... They wear many hats, and they do what they need to do in order to keep most things running. Any suggestions would be greatly appreciated!

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  • Windows7 issue in mutli- tasking and memory

    - by Nitesh
    I seeming some problem in my windows OS recently, let me first say my system configuration. processor - Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66 GHz Installed memory (RAM) - 4.00 GB (3.00 GB usable) System type - 32 bit operating system I am using two OS in this system, first one is Windows7 and the other is centOS. Well, I am using this from a long time there was no problem , and all of a sudden since from couple weeks I am facing problems in my Windows7 OS. In windows7 i was nearing using multiple jobs almost every time i log in, there was no problem but now i don't no what happen I am not able to do multiple jobs at same time. For example- 1 I am now not able to listen to music in windows media player and view photo's. All of a sudden the system stops working and does not respond and then respond after 5mins and the music get played where it got stopped after 5 mins. 2 When i start browersing internet it hangs all of sudden and doesn't respond for 2 or 3 mins and gets loading. I mean it just happens for every operation i do in the system. Even now typing was also difficult, it gets hanged very frequently even though i am doing single task. I have never come across this kind of problem before. So the first thing i did was to see the useage of the processor and the memory. Well, i thick the useage of the processor was fine, for single task the useage was some where around 3 to 5%. Well, it was something weird i found in the memory, in spite of no task that i was running it was using somewhere around 34 to 41% of memory. So i opened the task manager and click on resource monitor in performance tab. And in the memory section of the monitoring tool i found the usage of my RAM, it was something like this. Hardware reserved - 1029 MB In Use - 1430 MB Modified - 49 MB Standby - 1566 MB free - 22 MB And i could also see Available 1588 MB Cached 1615 MB Total 3067 MB Installed 4096 MB well, this if all i could find out and i have no idea why my computer is acting so weird all of a sudden and the performance problem is growing day by day and i also don't know if there is problem in Bios, i have let it for default settings from long time. please help me and Thank you in advance for reading this and helping me.

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  • How to circumvent ISP Limiting "Unknown" traffic - (SSH)Proxy, VPN

    - by connery
    I am having issues with using a proxy/VPN, with my current ISP (Comenersol, Spain). From my point of view they limit traffic by protocol or by traffic they "know" and "dont know". I'll explain my findings so far below. Internet connection in Spain: ~400-420KByte/sec (speedtest.net) OpenVPN Server in Sweden(pfsense): 100/100Mbit. LZO Compression. TCP. Tun. Aes128 Squid Proxy server in Sweden (pfsense): 100/100 (same box as the vpn server). Plain, no encryption. Runs in stealth mode to hide the use of proxy. NOT running OpenVPN or Squid Proxy, this is my findings: When I download a file from my pfsense box in Sweden, I get maximum speed When I run speedtest.net and choose any european server (including Swedish), I get max speed When I download a torrent (with non default port above 10K), I get limited to ~100KByte/sec. Encryption is turned off If I download something through https, I get max speed Running either Squid Proxy or VPN, this is my findings When I download a file from my pfsense box in Sweden, I get ~100KByte/sec When I run speedtest.net and choose any european server (including Swedish and Spanish), I get ~100Kbyte/sec When I download a torrent, I get same limitation ~100KByte/sec When I download something through https, I get ~100KByte/sec I verify the speeds above with speedtest.net measure, firefox measure in addition to having bmon running in terminal in the background. This way I am certain that the speeds I get presented, are in fact correct. If I connect through a different ISP with VPN or Squid Proxy, I get better speeds (400KByte/sec ++) In short: Whenever I tunnel my traffic through Sweden, my SPanish ISP throttles the traffic. I thought tunneling it through Squid would solve the issue, since I then would no longer hide my traffic through encryption. This does not seem to be the case. Wget and fetch gives same result. I did not try 'nc', but I assume this would give the same result. Does anyone know how to circumvent this issue? I would very much like to be able to get full speed with Swedish ip, as this would make me able to stream TV at higher quality than today. 100KByte/sec just does not cut it quality wise. Thanks for reading. Looking forward for your help.

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  • How to tune system settings for mongoDB on Linux?

    - by jsh
    Trying to squeeze a lot out of one question here -- please bear with me. Although the MongoDB man pages make several useful recommendations about system settings like ulimit (http://docs.mongodb.org/manual/reference/ulimit/), and other production factors (http://docs.mongodb.org/manual/administration/production-notes/) they seem mysteriously silent on things like virtual memory and swap settings. The closest we get to a hint is that "...the operating system’s virtual memory subsystem manages MongoDB’s memory..." (http://docs.mongodb.org/manual/faq/fundamentals/#does-mongodb-require-a-lot-of-ram). Running the same job - high writes and high reads on about 10,000,000 records in a single collection -- on my 4-processor, 4GB RAM macbook and an 8-core ubuntu box with 64GB RAM I saw dramatically WORSE read performance on the linux box with factory settings, and could hear the disk constantly spinning, indicating high I/O and presumably swapping. Yes, other things were happening on the box, but there was plenty of free RAM, disk space, etc.; furthermore, I did not see evidence that Mongo was expanding to take advantage of all that free RAM as it is touted to do. Linux box default settings were as follows: vm.swappiness =60 vm.dirty_background_ratio = 10 vm.dirty_ratio = 20 vm.dirty_expire_centisecs =3000 vm.dirty_writeback_centisecs=500 I hazarded some guesses looking at docs and blogs for other types of databases (Oracle, MYSQL, etc.), experimented, and adjusted as below. vm.swappiness=10 vm.dirty_background_ratio=5 vm.dirty_ratio=5 vm.dirty_writeback_centisecs=250 vm.dirty_expire_centisecs=500 I saw some immediate apparent improvements in read time. However, when I ran my test jobs again, read performance continued to be painfully sluggish during heavy writes. Then, I REBUILT the collection from an available data source - and suddenly I can read at 1ms or less per record WHILE doing the write job! So the question is really two-fold: 1) What are appropriate VM settings for MongoDB on Linux? 2) (bonus) Does Mongo do some checking or optimization with the OS while data is being built? In other words, if I have built a large data set with suboptimal VM or I/O settings, does Mongo make assumptions during the memory-mapping process that will fail to take advantage of optimizations down the road? Obviously I don't fully grok memory mapping under the hood (I was hoping I wouldn't have to). Any help appreciated...thanks! -j

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  • Nginx + Passenger running a RoR app is returning 401 when 302 is expected

    - by DBruns
    I've got a RoR app running on Passenger on top of Nginx. I'm using devise for my authentication method and have a link that gets sent in an email to users that requires authentication to view. If a user clicks the link from Outlook, and IE is the default browser, IE makes an HTTP request using the following headers: GET http://www.company.com/custom_layouts/108 HTTP/1.1 Accept: */* Accept-Language: en-us User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; .NET4.0E) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: www.company.com Returning: HTTP/1.1 401 Unauthorized Content-Type: /; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Status: 401 X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.2.15 WWW-Authenticate: Basic realm="Application" Cache-Control: no-cache X-UA-Compatible: IE=Edge,chrome=1 Set-Cookie: _vxwer_session=[sessionstr]; path=/; HttpOnly X-Runtime: 0.011918 Server: nginx/0.7.67 + Phusion Passenger 2.2.15 (mod_rails/mod_rack) 31 You need to sign in or sign up before continuing. 0 When the exact same URL is typed into the address bar, it does this: GET http://www.company.com/custom_layouts/108 HTTP/1.1 Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */* Accept-Language: en-US User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; .NET4.0E) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: www.company.com Returning: HTTP/1.1 302 Found Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Status: 302 X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.2.15 Location: http://www.company.com/users/sign_in Cache-Control: no-cache X-UA-Compatible: IE=Edge,chrome=1 Set-Cookie: _xswer_session=[session_info_here]; path=/; HttpOnly X-Runtime: 0.010798 Server: nginx/0.7.67 + Phusion Passenger 2.2.15 (mod_rails/mod_rack) 6f <html><body>You are being <a href="http://www.company.com/users/sign_in">redirected</a>.</body></html> 0 I expect them to return the same thing regardless.

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  • Wifi randomly drops on Windows 8 laptop

    - by JosiahS
    First of all, I did a lot of research on this problem, and I wasn't able to come to any helpful conclusion. I've finally decided that I need advice from those who might know where to look. So don't let me down. :P I used to have an older Windows 7 laptop, which worked great for basic office and web browsing. However, I wanted something that would play actual modern games. So I recently bought a Sager NP8235 with the Intel Wireless-AC 7260 wifi card, and installed Windows 8 Pro on it. And ever since, I've been having problems with the wifi. Generally, what happens is if I leave the laptop on but inactive for an extended amount of time (I've estimated it around an hour to two), the wifi will start dropping randomly. If I happened to have a download going at the time, it usually causes the download to fail. Or, if I put the laptop to sleep overnight, the next morning I usually have to restart the computer because the wifi device apparently stops working (it literally won't turn on). Also, and most frustrating, whenever I'm on a video chat (like Skype), after about ten minutes, the connection will start lagging like crazy, until it forces Skype to end the call. After that, I usually have to disable and reenable the wifi to get it working again. I know it isn't our internet, because all the other computers in our house (~8) don't have any issues. Even the old Windows 7 laptop (connected also over wifi) works just fine, scoring the normal ~3Mbps average on speedtest.net (yes, I know our internet is slow, we live out in the country). Additionally, when I connect the Sager directly to the router via ethernet, the internet instantly starts working just great. Like I said, I've done a lot of googling to figure out what's going on, and I haven't been able to find anything that worked for me. Is it Windows 8 conflicting with the Wifi drivers? As of this writing, I have the Intel drivers v16.1.5.2 installed (without the extra Intel software). Or is it our router? It's a TP-Link TL-WR841ND, set to the default settings. The Sager is currently being assigned to a static IP, if that makes any difference. And yet, the old windows 7 laptop has a much more stable connection than the Sager. Anyone have any ideas? At this point, I'd appreciate even knowing what the problem is.

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  • Varnish server in front of nginx server with multiple virtualhosts

    - by Garreth 00
    I have tried to search for a solution for this, but can't find any documentation/tips on my specific setup. My setup: Backendserver: ngnix: 2 different websites (2 top domains) in virtualenv, running gunicorn/python/django Backendserver hardware(VPS) 2gb ram, 8 CPU Databaseserver: postgresql - pg_bouncer Backendserver hardware (VPS) 1gb ram, 8 CPU Varnishserver: only running varnish Varnishserver hardware (VPS) 1gb ram, 8 CPU I'm trying to set up a varnish server to handle rare spike in traffic (20 000 unique req/s) The spike happens when a tv program mention one of the sites. What do I need to do, to make the varnish server cache both sites/domains on my backendserver? My /etc/varnish/default.vcl : backend django_backend { .host = "local.backendserver.com"; .port = "8080"; } My /usr/local/nginx/site-avaible/domain1.com upstream gunicorn_domain1 { server unix:/home/<USER>/.virtualenvs/<DOMAIN1>/<APP1>/run/gunicorn.sock fail_timeout=0; } server { listen 80; listen 8080; server_name domain1.com; rewrite ^ http://www.domains.com$request_uri? permanent; } server { listen 80 default_server; listen 8080; client_max_body_size 4G; server_name www.domain1.com; keepalive_timeout 5; # path for static files root /home/<USER>/<APP>-media/; location / { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; if (!-f $request_filename) { proxy_pass http://gunicorn_domain1; break; } } } My /usr/local/nginx/site-avaible/domain2.com upstream gunicorn_domain2 { server unix:/home/<USER>/.virtualenvs/<DOMAIN2>/<APP2>/run/gunicorn.sock fail_timeout=0; } server { listen 80; listen 8080; server_name domain2.com; rewrite ^ http://www.domains.com$request_uri? permanent; } server { listen 80; listen 8080; client_max_body_size 4G; server_name www.domain2.com; keepalive_timeout 5; # path for static files root /home/<USER>/<APP>-media/; location / { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; if (!-f $request_filename) { proxy_pass http://gunicorn_domain2; break; } } } Right now, If I try the Ip of the varnishserver I only get served domain1.com. Would everything be correct if I change the DNS of the two domain to point to the varnishserver, or is there extra setup before it would work? Question 2: Do I need a dedicated server for varnish, or could I just install varnish on my backendserver, or would the server run out of memory quick?

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  • PHP-FPM performing worse than mod_php

    - by lordstyx
    Recently the website I maintain has been growing a lot and I saw the point coming where I'd want to switch from apache to nginx, because I kept on reading that it performs way better. Now I've done the switch, and I have to say, nginx is keeping up just fine. However, php-fpm is forming a problem. Where the php pages used to take 0.1 second to generate with the same load they now take around 3 seconds! Furthermore the error.log from nginx is being spammed with errors like: upstream timed out (110: Connection timed out) while connecting to upstream, client: ... I also tried using unix sockets instead, but those would complain about the following: connect() to unix:/tmp/php5-fpm.sock failed (11: Resource temporarily unavailable) while connecting to upstream I've fiddled with settings here and there but nothing seems to work. Changing the amount of pm.max_children doesn't seem to help a lot either, but with it's current amount at 350 it seems to be the lesser of all evil. The server that's being used has 3 GB RAM (not all of it is free due to a MySQL server also running) along with 2 dual-core processors (4 cores in total). Am I doing something majorly wrong with the settings here, or is the server simply not capable enough? EDIT: Here is the nginx server block server { listen 80; listen [::]:80 default ipv6only=on; root /var/www; index index.php index.html index.htm; server_name localhost; location / { try_files $uri $uri/ /index.html; } location /doc/ { alias /usr/share/doc/; autoindex on; allow 127.0.0.1; deny all; } location = /50x.html { root /usr/share/nginx/www; } location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini try_files $uri = 404; # With php5-cgi alone: fastcgi_pass 127.0.0.1:9000; # With php5-fpm: #fastcgi_pass unix:/tmp/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } location ~ /\.ht { deny all; } } And the php-fpm pool: [www] user = www-data group = www-data listen = 127.0.0.1:9000 ;listen = /tmp/php5-fpm.sock listen.backlog = -1 pm = dynamic pm.max_children = 350 pm.start_servers = 200 pm.min_spare_servers = 10 pm.max_spare_servers = 350 pm.max_requests = 1536 rlimit_files = 65536 rlimit_core = unlimited chdir = /

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  • Confused with DKIM, SPF and Exim Configs

    - by 0pt1m1z3
    I've now spent 2 hours trying to figure out this issue and I am about to give up and go to bed. I've been having issues with Gmail rejecting emails from my VPS server because of false spam alerts (probably caused by lfd sending too many emails). So I changed my Exim config to send emails from a different IP (my VPS comes with 3) and that fixed the issue. I also enabled DKIM and SPF on my domains for added measure. But now, all my emails appear as ("From: Sender Name via server.domain1.com") where server.domain1.com is my VPS hostname. I previously had the same issue in Outlook and turning off "Set SMTP Sender: headers" solved that problem. But I believe adding the DKIM and SPF now makes Gmail add "via server.domain1.com" to my messages. How do I fix this? This is a typical header for a message (as it appears at gmail): Delivered-To: [email protected] Received: by 10.60.44.163 with SMTP id f3csp248622oem; Thu, 29 Mar 2012 21:23:18 -0700 (PDT) Received: by 10.50.106.200 with SMTP id gw8mr452788igb.10.1333081398523; Thu, 29 Mar 2012 21:23:18 -0700 (PDT) Return-Path: <[email protected]> Received: from domain2.com ([X.X.X.X]) by mx.google.com with ESMTPS id y1si810998igb.3.2012.03.29.21.23.18 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 29 Mar 2012 21:23:18 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates X.X.X.X as permitted sender) client-ip=X.X.X.X; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates X.X.X.X as permitted sender) [email protected]; dkim=pass [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=server.domain1.com; s=default; h=Date:Message-Id:From:Content-type:MIME-Version:Subject:To; bh=wF8bBRgh01EYg4t5DAeVPv1Ps906UVIeRnQCb/HvSYw=; b=k/Pg7lnrO+Ud/z1mOTv+O/3DiJzzQgyBhfIizIaFHM8tF/eNJt5P2k+9yQB224sxYstZIWwVRBJmiqvcM1QhARv1HWqWma0crppZ3JOn+LRHANan634OBi+58SIRA+gu; Received: (Exim 4.77) id 1SDTVE-0005HA-9Y for [email protected]; Fri, 30 Mar 2012 00:31:56 -0400 To: [email protected] Subject: Password Reset Request MIME-Version: 1.0 Content-type: text/html; charset=iso-8859-1 From: Sender Name <[email protected]> Message-Id: <[email protected]> Date: Fri, 30 Mar 2012 00:31:56 -0400 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server.domain1.com X-AntiAbuse: Original Domain - domain2.com X-AntiAbuse: Originator/Caller UID/GID - [507 504] / [47 12] X-AntiAbuse: Sender Address Domain - server.domain1.com

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  • Why do I sometimes get 'sh: $'\302\211 ... ': command not found' in xterm/sh?

    - by amn
    Sometimes when I simply type a valid command like 'find ...', or anything really, I get back the following, which is completely unexpected and confusing (... is command name I type): sh: $'\302\211...': command not found There is some corruption going on I think. I don't use color in my prompt, I am using the Bash shell in POSIX mode as sh (chsh to /bin/sh and so on - $SHELL is sh). What is going on and why does this keep happening? Anything I can debug? I think this is more of an xterm issue than sh, or at least a combination of the two. Files, for context: My /etc/profile, as distributed with Arch Linux x86-64: # /etc/profile #Set our umask umask 022 # Set our default path PATH="/usr/local/sbin:/usr/local/bin:/usr/bin" export PATH # Load profiles from /etc/profile.d if test -d /etc/profile.d/; then for profile in /etc/profile.d/*.sh; do test -r "$profile" && . "$profile" done unset profile fi # Source global bash config if test "$PS1" && test "$BASH" && test -r /etc/bash.bashrc; then . /etc/bash.bashrc fi # Termcap is outdated, old, and crusty, kill it. unset TERMCAP # Man is much better than us at figuring this out unset MANPATH My /etc/shrc, which I created as a way to have sh parse some file on startup, when non-login shell. This is achieved using ENV variable set in /etc/environment with the line ENV=/etc/shrc: PS1='\u@\H \w \$ ' alias ls='ls -F --color' alias grep='grep -i --color' [ -f ~/.shrc ] && . ~/.shrc My ~/.profile, I am launching X when logging in through first virtual tty: [[ -z $DISPLAY && $XDG_VTNR -eq 1 ]] && exec xinit -- -dpi 111 My ~/.xinitc, as you can see I am using the system as a Virtual Box guest: xrdb -merge ~/.Xresources VBoxClient-all awesome & exec xterm And finally, my ~/.Xresources, no fancy stuff here I guess: *faceName: Inconsolata *faceSize: 10 xterm*VT100*translations: #override <Btn1Up>: select-end(PRIMARY, CLIPBOARD, CUT_BUFFER0) xterm*colorBDMode: true xterm*colorBD: #ff8000 xterm*cursorColor: S_red Since ~/.profile references among other things /etc/bash.bashrc, here is its content: # # /etc/bash.bashrc # # If not running interactively, don't do anything [[ $- != *i* ]] && return PS1='[\u@\h \W]\$ ' PS2='> ' PS3='> ' PS4='+ ' case ${TERM} in xterm*|rxvt*|Eterm|aterm|kterm|gnome*) PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }'printf "\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/~}"' ;; screen) PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }'printf "\033_%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/~}"' ;; esac [ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion I have no idea what that case statement does, by the way, it does look a bit suspicious though, but then again, who am I to know.

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  • a couple of questions about proxy server,vpn & how they works

    - by Q8Y
    I have a couple of questions that are related to security. Correct me if i'm wrong :) If I want to request something (ex: visiting www.google.com): my computer will request that then it will to the ISP then to my ISP proxy server that will take the request and act as a middle man in this situation ask for the site (www.google.com) and retrieve it then the proxy will send it back to me. I know that its being done like that. So, my question is that, in this situation my ISP knows everything and what I did request, and the proxy server is set by default (when I ask for an internet subscription). So, if I use here another proxy (lets assume that is a highly anonymous and my ISP can't detect my IP address from it), would I visit my ISP and then from my ISP it will redirect me to the new proxy server that I provide? Will it know that there is someone using another proxy? Or will it go to another network rather than my ISP? Because I didn't get the view clearly. This question is related to the first one. When I use a VPN, I know that VPN provides for me a tunneling, encryption and much more features that a proxy can't. So my data is travelling securely and my ISP can't know what I'm doing. But my questions are: From where is the tunneling started? Does it start after I visit the ISP network (since they are the one that are responsible for forwarding my data and requests)? If so, then not all my connection is tunneled in this way, there is a part that is not being tunneled. Since, every time I need to do anything I have to go to my ISP and ask to do that. Correct me if I misunderstand this. I know that VPN can let my computer be virtually in another place and access its resources (ex: be like in my office while I'm in my home. This is done via VPN). If I use a VPN service provider so that I can access the internet securely and without being monitored by my ISP. In this case, where is my encrypted data saved? Is it saved in my ISP or in the VPN service provider? If I use a VPN, does anyone on the internet know what I'm doing or who I am? Even the VPN service provider? Can they know me? I think they should know the person that is asking for this VPN service, am I right?

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  • Proxy Error 502 "Reason: Error reading from remote server" with Apache 2.2.3 (Debian) mod_proxy and Jetty 6.1.18

    - by Martin
    Apache is receiving requests at port :80 and proxying them to Jetty at port :8080 The proxy server received an invalid response from an upstream server The proxy server could not handle the request GET /. My dilemma: Everything works fine normally (fast requests, few seconds or few tens of seconds long requests are processed ok). Problems occur when request processing takes long (few minutes?). If I issue request instead directly to Jetty at port :8080 the request is processed OK. So problem is likely to sit somewhere between Apache and Jetty where I am using mod_proxy. How to solve this? I have already tried some "tricks" related to KeepAlive settings, without luck. Here is my current configuration, any suggestions? #keepalive Off ## I have tried this, does not help #SetEnv force-proxy-request-1.0 1 ## I have tried this, does not help #SetEnv proxy-nokeepalive 1 ## I have tried this, does not help #SetEnv proxy-initial-not-pooled 1 ## I have tried this, does not help KeepAlive 20 ## I have tried this, does not help KeepAliveTimeout 600 ## I have tried this, does not help ProxyTimeout 600 ## I have tried this, does not help NameVirtualHost *:80 <VirtualHost _default_:80> ServerAdmin [email protected] ServerName www.mydomain.fi ServerAlias mydomain.fi mydomain.com mydomain www.mydomain.com ProxyRequests On ProxyVia On <Proxy *> Order deny,allow Allow from all </Proxy> ProxyRequests Off ProxyPass / http://www.mydomain.fi:8080/ retry=1 acquire=3000 timeout=600 ProxyPassReverse / http://www.mydomain.fi:8080/ RewriteEngine On RewriteCond %{SERVER_NAME} !^www\.mydomain\.fi RewriteRule /(.*) http://www.mydomain.fi/$1 [redirect=301L] ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined ServerSignature On </VirtualHost> Here is also the debug log from a failing request: 74.125.43.99 - - [29/Sep/2010:20:15:40 +0300] "GET /?wicket:bookmarkablePage=newWindow:com.mydomain.view.application.reports.SaveReportPage HTTP/1.1" 502 355 "https://www.mydomain.fi/?wicket:interface=:0:2:::" "Mozilla/5.0 (Windows; U; Windows NT 6.1; fi; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10" [Wed Sep 29 20:20:40 2010] [error] [client 74.125.43.99] proxy: error reading status line from remote server www.mydomain.fi, referer: https://www.mydomain.fi/?wicket:interface=:0:2::: [Wed Sep 29 20:20:40 2010] [error] [client 74.125.43.99] proxy: Error reading from remote server returned by /, referer: https://www.mydomain.fi/?wicket:interface=:0:2:::

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  • PHP `virtual()` with Apache MultiViews not working after upgrade to Ubuntu 12.04

    - by Izzy
    I use PHP's virtual() directive quite a lot on one of my sites, including central elements. This worked fine for the last ~10 years -- but after upgrading (or rather moving, as it is on a new machine) to Ubuntu 12.04 it somehow got broken. Example setup (simplified) To make it easier to understand, I simplify some things (contents). So say I need a HTML fragment like <P>For further instructions, please look <A HREF='foobar'>here</P> in multiple pages. 10 years ago, I used SSI for that, so it is put into a file in a central place -- so if e.g. the targeted URL changes, I only need to update it in one place. To serve multiple languages, I have Apache's MultiViews enabled -- and at $DOCUMENT_ROOT/central/ there are the files: foobar.html (English variant, and the default) foobar.html.de (German variant). Now in the PHP code, I simply placed: <? virtual("/central/foobar"); ?> and let Apache take care to deliver the correct language variant. The problem As said, this worked fine for about 10 years: German visitors got the German variant, all others the English (depending on their preferred language). But after upgrading to Ubuntu 12.04, it no longer worked: Either nothing was delivered from the virtual() command, or (in connection with framesets) it even ended up in binary gibberish. Trying to figure out what happens, I played with a lot of things. I first thought MultiViews was (somehow) not available anymore -- but calling http://<server>/central/foobar showed the right variant, depending on the configured language preferences. This also proved there was nothing wrong with file permissions. The error.log gave no clues either (no error message thrown). Finally, just as a "last ressort", I changed the PHP command to <? virtual("central/foobar.html"); ?> -- and that very same file was in fact included. So PHP's virtual() function basically worked -- but the language dependend stuff obviously did no longer work together with it as it did before. Of course I tried to find some change (most likely in PHP's virtual() command), using Google a lot, and also searching the questions here -- unfortunately to no avail. Finally: The question Putting "design questions" aside (surely today I would design things differently -- but at least currently I miss the time to change that for a quite huge amount of pages): What can be done to make it work again? I surely missed something -- but I cannot figure out what...

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  • Fix single entry from mbr

    - by Sander
    I use EasyBCD to manage my tripleboot of (1) Windows Server 2008 R2, (2) Windows 7 Professional and (3) Ubuntu Linux. While trying to change the order of my boot menu I ended up losing the Windows Server entry. Luckily I had a boot menu backup (.bcd file) that allowed me to restore my boot menu using EasyBCD. However, when I now select the Windows Server option in my boot menu the Windows Server Recovery Environment starts up. So I have to select language/keyboard layout/etc. and then I have 3 options as shown in the image below. . My goal is to fix the one corrupted Windows Server entry from my boot menu without messing up or losing the two other ones. I'm guessing the Recovery Console (Command Prompt) is the next step and that I will be needing bootrec.exe. But when consulting this page: Use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows (about half way down there's a link that shows the bootrec.exe options) I'm getting uncertain. The page lists 4 options for bootrec.exe : /FixMbr /FixBoot /ScanOs /RebuildBcd What option do I need to fix just the server entry of my boot menu? Thanks in advance, Sander P.S. All three OS's are on the same physical disk (3 different partitions). Disk layout: System reserved (primary partition, 100 MB) Windows 7 (primary parition, 150 GB) Windows Server 2008 (primary partition, 150 GB) Extended partition (linux partitions (/,/swap,/home), 150GB + data partition, 150 GB) P.P.S. This is what my boot menu looks like using EasyBCD (Detailed/Debug mode) on my Windows 7 installation. Windows Boot Manager -------------------- identifier {9dea862c-5cdd-4e70-acc1-f32b344d4795} device partition=\Device\HarddiskVolume1 description Windows Boot Manager locale en-US inherit {7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e} default {93f90e43-cae8-11df-b05a-c9177e705936} resumeobject {93f90e3e-cae8-11df-b05a-c9177e705936} displayorder {93f90e43-cae8-11df-b05a-c9177e705936} {93f90e3f-cae8-11df-b05a-c9177e705936} {93f90e46-cae8-11df-b05a-c9177e705936} toolsdisplayorder {b2721d73-1db4-4c62-bf78-c548a880142d} timeout 10 displaybootmenu Yes Windows Boot Loader ------------------- identifier {93f90e43-cae8-11df-b05a-c9177e705936} device partition=\Device\HarddiskVolume3 path \Windows\system32\winload.exe description Windows Server 2008 R2 - Standard locale en-US inherit {6efb52bf-1766-41db-a6b3-0ee5eff72bd7} recoverysequence {93f90e44-cae8-11df-b05a-c9177e705936} recoveryenabled Yes osdevice partition=\Device\HarddiskVolume3 systemroot \Windows resumeobject {93f90e42-cae8-11df-b05a-c9177e705936} nx OptOut Windows Boot Loader ------------------- identifier {93f90e3f-cae8-11df-b05a-c9177e705936} device partition=C: path \Windows\system32\winload.exe description Windows 7 - Professional locale nl-NL inherit {6efb52bf-1766-41db-a6b3-0ee5eff72bd7} recoverysequence {93f90e40-cae8-11df-b05a-c9177e705936} recoveryenabled Yes osdevice partition=C: systemroot \Windows resumeobject {93f90e3e-cae8-11df-b05a-c9177e705936} nx OptIn Real-mode Boot Sector --------------------- identifier {93f90e46-cae8-11df-b05a-c9177e705936} device partition=C: path \NST\AutoNeoGrub0.mbr description Ubuntu 10.04 - Lucid Lynx

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  • VPN Connection Causes Internal LAN Connection Loss with Server

    - by sleepisfortheweak
    I've tried configuring basic PPTP VPN at my small business using a number of different tutorials. As far as I can tell, the actual VPN connection worked fine, but upon connecting a client, the Server 'disappears' from the internal LAN. The RRAS service must be stopped before the connection is restored. My Setup: The network is simply a DSL Gateway/Router to the outside functioning as NAT/Firewall/DHCP. The server is a Win Server 2008 machine at fixed IP 192.168.1.200. The server has 1 NIC, so I used the 'custom' option when configuring RRAS. The RRAS settings should be default except that I've disabled ports for connection types I'm not using and reduced PPTP ports to 10. I've also created an address pool and disabled DHCP packet forwarding. The server only functions as a File Share and now a VPN Server. Local LAN computers all have mapped network shares to the server authenticated based on Local User/Group setup on the server. The Problem: The moment a client connects through VPN, the server 'disappears' from the local network. All mapped drives disconnect and there is no response to a ping 192.168.1.200. Even if the client disconnects, the server does not re-appear at that address until the RRAS service is stopped. I've Tried: Using an Address Pool inside and outside the local subnet. Using DCHP Relay Checking Inbound/Outbound filters (none enabled) The fact that nothing I've tried has had any effect, and that I can connect and successfully obtain an IP tells me that it's something more fundamental I'm missing. My gut tells me that it's something to do with the second IP address added by the VPN client somehow taking over the interface or traffic from the local LAN accidently getting routed to the VPN client instead of handled at the server once RRAS has become 'active' when a client connects. Hopefully this may be obvious to someone with real IT experience. I've been doing this a while and almost never been stumped. I'm starting to think it might actually be something tricky since my setup is pretty basic yet refuses to work. I'll be happy to include more info if this doesn't ring any bells right away for anyone. Thanks

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  • Virtualbox - routing subnet to bridge adapters

    - by user42384
    Hello, I have set up a Debian Lenny box with 3 vbox Lenny machines running eth0 of the host in bridged mode (on virtualbox 3.1.6). When testing in my local LAN, this all worked perfectly well and traffic flowed to and from the IPs of the virtual machines as it should. However, now that it's in its co-lo home, the networking setup is a bit different, and I'm unable to get traffic to flow to the vboxes properly. Specifically, the host has its own Primary IP, and I have a separate subnet of 8 (6 usable) IPs routed to the box for use by the vboxes. So, eth0 on host is: Machine IP: 2x.x.x.137 Gateway IP: 2x.x.x.138 Subnet Msk: 255.255.255.252 Subnet for vboxes is Subnet: 2x.x.x.240/29 Netmask: 255.255.255.248 vbox1 is configured to 2x.x.x.241 on eth0 as follows: auto eth0 iface eth0 inet static address 2x.x.x.241 netmask 255.255.255.248 Setting up a virtual interface (eth0:0) on the host with one of these subnet IPs allows me to ping to that address only from vbox1, and it allows me to ping vbox1 from the host. I can also ping that virtual interface perfectly well from outside, so the IPs are definitely landing at my machine. It seems I'm missing some sort of routing instruction either on the host or vbox1 to get traffic moving between the subnet and the default gateway, but I can't seem to figure out what it should be, or what glaringly obvious thing i'm missing. Most of my obvious attempts (the gw of eth0, the ip of eth0) were rejected by route command with SIOCADDRT: No such device (eg - i can't find it). I tried setting vbox1 to bridge on eth0:0, but this was not an acceptable device name and VBoxHeadless refused to start. The physical machine does have an unused physical NIC at eth1 that can be used if necessary for something or other. Host machine is running iptables configured by ferm, have experimented with it allowing forwarding for that subnet, but I wouldn't have thought this was necessary given the nature of the virtualbox devices (nor did it actually work). Clearing out all of these rules for a blank iptables set does not resolve the issue. (you can see ferm generated iptables at http://codedumper.com/ojaze) Thanks for any help you can give... Patrick

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  • Thunderbird 3: can't change column width?

    - by rumtscho
    I recently installed Thunderbird 3.0.3. Just noticed a suboptimal UI setting: in the upper pane, which lists the e-mails in the current folder, the Date column is about 200px wide. So when I keep the window at 480x600, all I see in a row is: | tree icon | favourites icon | attachment icon | read icon | junk icon | Date and time, followed by 5cm whitespace | ... | P Where "P" is the first letter of the name of the sender. And the "..." is actually shown this way, I have no idea which column it is meant to be. But I don't see neither the sender, nor the message subject, which makes scrolling a folder for a certain mail rather pointless. I see these when I maximize the window, actually the columns are then not only bigger, they are arranged in another sequence. But I feel that holding a mail client permanently maximised at 1600x1200 is a waste of screen real estate. My naive solution attempt was to try to go with the mouse cursor to the right edge of the date column and try to shrink it by moving the cursor left while holding down the left mouse button. Not only is this default behaviour for all resizable columns I've ever encountered in GUIs, the cursor actually turns into a horizontal double-headed arrow. But pulling has no effect at all. I cannot make a wide column narrow, and I cannot make the narrow columns wide. I didn't find anything in the preferences either. So can please somebody explain how to get the columns arranged sensibly? Edit: I found out that I only have the problem when I drag the Thunderbird window to a GridMove screen area. It gets automatically resized, but doesn't notice the resize event or something, so the column width remains the same as under a maximized window. First making the window narrow using the mouse helps with column width, but the width of the mail pane is still too wide (rows don't reflow). Anyway, this seems to be a bug caused by the combination of the two applications and not a configuration problem, so I guess I'll have to live with it.

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  • Port forwarding not working properly

    - by sudo work
    I'm trying to host a small web server from my home network; however, I have not been able to successfully port forward ports to the local server. My current network topology looks like this: Cable Modem/Router - Secondary Wireless Router - Many computers (including server) The modem/router I'm using is a Cisco (Scientific Atlantic) DPC2100, provided by my ISP. The wireless router that I'm using as the central hub to my home network is a Linksys E3000. The computer being used as a server is running Ubuntu 10.04 Server Edition. The main issue is that I can't access the server remotely, using my WAN IP address. I have port forwarded my wireless router; however, I believe that I need to somehow set my modem to bridge mode. As far as I can tell though, this isn't possible. Here are the various IP address settings: DPC2100 WAN: 69.xxx.xxx.xxx Internal IP: 192.168.100.1 Internal Network: 192.168.7.0 E3000 IP Address: 192.168.7.2 Gateway: 192.168.7.1 Internal IP: 192.168.1.1 Internal Network: 192.168.1.0 Server IP Address: 192.168.1.123 Gateway: 192.168.1.1 Now I can do an nmap at various nodes, and here are the results (from the server): nmap localhost: 22,25,53,80,110,139,143,445,631,993,995,3306,5432,8080 open nmap 192.168.7.2: 22,25,80 (filtered),110,139,445 open (ports I have forwarded in the E3000)* nmap 69.xxx.xxx.xxx: 1720 open *For some reason, I can SSH into the server at 192.168.7.2, but not view the website. Here are also some other settings: /etc/hosts/ 127.0.0.1 localhost 127.0.1.1 servername ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters /etc/apache2/sites-available/default snippet <VirtualHost *:80> DocumentRoot /srv/www/ <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> ... </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> ... </Directory> ErrorLog /var/log/apache2/error.log LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> ... </Directory> </VirtualHost> Let me know if you need any other information; some stuff probably slipped my mind.

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  • Subversion 1.7.x and expat location in configure

    - by ditto
    I am running CentOS 6.3 64bit and DirectAdmin control panel. Currently I have installed Apache Subversion 1.6.19 without any problems. I have installed expat and expat-devel and neon-devel using yum. When installing Apache Subversion 1.6.19 this configure command works fine: ./configure --prefix=/usr --with-ssl --with-apxs=/usr/sbin/apxs --with-apr=/usr/bin/apr-config However when installing Apache Subversion 1.7.7 using the same configure command as above, I get this error after doing commmand "make": /etc/httpd/lib/libaprutil-1.so: undefined reference to `XML_StopParser' collect2: ld returned 1 exit status make: *** [subversion/svnadmin/svnadmin] Error 1 However I found out I can solve that problem by adding this into the configure command: --with-expat=includes:lib_search_dirs:libs So it then looks like this: ./configure --prefix=/usr --with-ssl --with-expat=includes:lib_search_dirs:libs --with-apxs=/usr/sbin/apxs --with-apr=/usr/bin/apr-config However that configure command then give this warning: configure: WARNING: Expat found amongst libraries used by APR-Util, but Subversion libraries might be needlessly linked against additional unused libraries. It can be avoided by specifying exact location of Expat in argument of --with-expat option. So I want to solve that. I have experimentet alot, but not been able to figure out how to "specifying exact location of Expat" in configure command, and how to find out what the location should be? However after a lot of searching I found this: http://subversion.tigris.org/issues/show_bug.cgi?id=3997 - that is a FreeBSD user saying this: Building Subversion 1.7.x on FreeBSD currently requires a configure flag: --with-expat=/usr/local/include:/usr/local/lib:expat As that is the default location of expat on that platform, it would be nice if configure detected it automatically. However I am not using FreeBSD, I am running CentOS 6.3 64bit. Also remember I said I have installed expat and expat-devel and neon-devel using yum. However I tried to use the expat/command path posted by the FreeBSD user, and it seems to work, it does not give errors when running configure command, and does not give errors when running "make". This is what I used then: ./configure --prefix=/usr --with-ssl --with-expat=/usr/local/include:/usr/local/lib:expat --with-apxs=/usr/sbin/apxs --with-apr=/usr/bin/apr-config But this server is a production server, and therfor I need your help to advice if this is also correct to run on a CentOS server? Is the following path in expat command correct on CentOS?: --with-expat=/usr/local/include:/usr/local/lib:expat If not, please advice what it should be changed to. Thanks in advance for any confirmation or help on this!

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  • Can this USB3 behaviour be anything else than a hardware failure?

    - by Jonas Wielicki
    While my motherboard is half a year old now (ASUS M5A99X EVO), I only recently made use of the USB3 boards (after purchase of USB3 external harddrive). However, I am encountering issues. I am running linux 3.6.7-4.fc16.x86_64. Initially, the harddrive worked fine with USB3 (amazing ˜160MB/s), but I had some problems after putting after putting the harddrive to sleep manually after use (backup) with hdparm -Y. After some time, the device disappears from lsusb and i see the following in dmesg: [ 1924.091107] xhci_hcd 0000:05:00.0: xHCI host not responding to stop endpoint command. [ 1924.091114] xhci_hcd 0000:05:00.0: Assuming host is dying, halting host. [ 1924.091147] xhci_hcd 0000:05:00.0: HC died; cleaning up [ 1924.091233] usb 11-1: USB disconnect, device number 2 [ 1924.091272] sd 6:0:0:0: Device offlined - not ready after error recovery Testing with my (USB3 capable) notebook, I could not immediately reproduce the behaivour. I put the drive to sleep with hdparm -Y and waited for like an hour, but it was still listed in lsusb and responded after a few seconds delay when I tried after the hour of waiting. After an hour, on the desktop, the device would've usually vanished. Googling for this issue, I came across hints that playing around with IOMMU settings and upgrading the BIOS might help. I upgraded the BIOS and tried both with and without IOMMU enabled, got similar results. Most disturbing is, that one of the two USB 3.0 hubs sometimes also disappears from lsusb (or does not show up after boot at all). I've also heard that there are some hardware issues with ASUS USB3 ports. Applying mechanic force to the capble doesn't push the issue to one side or the other. Also, udev seems to reenumerate all devices if I plug the HDD into the USB 3.0 port without success (I can notice from my keyboard layout being changed to the default, which I do not use normally). The drive is externally powered and the external power supply is plugged in (it also stays powered when unplugging from USB, although it will spin down then). So before I try to return the board, I wanted to find out whether this can be anything else than a failure on the motherboard?

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