Recent Questions - Server Fault |
- Mixing server models in Hyper-V Failover Cluster
- How do you set a self-destruct or maximum uptime in AWS?
- Varnish 4.1 - How to serve cached copy on backend fetch failed instead of 503
- Is it possible to restrict which object classes a dynamically linked auxiliary class can be added to when extending the AD schema?
- Downsize the boot disk in VM Instance
- how to set LDAP ACL permissions on one subtree for a groups without modifying other objects permissions?
- Postfix causes issues when its service is enabled using systemctl and doesn't launch on startup
- High-availability strategy [closed]
- Routing WIFI and LAN on Mac OS
- Terraform Libvirt - How to use local qcow2 file
- How to install 32-bit libGL.so.1 on 64-bit Ubuntu 21.10
- How to register a variable in one role and use it in another one in Ansible
- Can't configure SMTP encryption - postfix
- Can I set multiple TXT record on my DNS? (in order to proove the ownership of a domain to 2 mailboxes system)
- RewriteRule won't match if trailing slash present, throws nginx 404
- cmd pipe -> System cannot find specified path
- TLS version switching to 1.0 when DNS changes in python3.6.8 application on rhel 7
- Resize server succeed but not applied
- Target pool with multiple load balancers?
- systemd[1]: Failed to start Advanced key-value store
- How to avoid automatic patching for SQL Server 2016 via Windows automatic update service?
- Am able to ping my domain, but not subdomain (digitalocean)
- iptables rules for NAT with FTP
- Copy VM Snapshot to a new VM Environment
- Convert virtual disk image to physical disk?
- How to access Hadoop remotely?
- Asterisk Penalty for dynamic Agents
- Running multiple instances of a Batch file in windows simultaneously?
- Automatically binding applications to a network interface based on the account they are started with
- Tell Rsync to Skip Current file During Transfer?
| Mixing server models in Hyper-V Failover Cluster Posted: 04 Mar 2022 06:02 AM PST Does anyone have experience with a heterogeneous blend of servers in a Hyper-V failover cluster? We have a cluster with blended generations of Proliants (DL360 G9s and DL360 G10s), and I'm considering introducing Dell servers into the mix due largely to availability and pricing. Is this a bad idea, and why? |
| How do you set a self-destruct or maximum uptime in AWS? Posted: 04 Mar 2022 05:59 AM PST SituationWe have a sandbox AWS account for trying things out. It is not for production, purely just for playing around with all the toys that AWS provide. We want to encourage everyone to explore and learn. We have many AWS accounts in our estate, including but not limited to,
Financial and environmental responsibility is important to us. Requirement
Potential solutionsaws-nukeI have seen aws-nuke. If we ran this at midnight on Wednesdays and Sundays it would terminate all instances. This sounds like a great solution, however it is also somewhat dangerous as it could terminate instances on other accounts my mistake. It also currently works on a block-nuke list, rather than an explicit allow-nuke list which is another potential security issue. I have logged aws-nuke#751 to address this. Max uptime policyThe other method that I am looking into is to use a policy (IAM?) to set the maximum uptime for everything. I feel like this has less likelihood of leaking into our other accounts and also has the potential to be more nuanced. I'm not sure,
I would be tremendously grateful for any pointers. |
| Varnish 4.1 - How to serve cached copy on backend fetch failed instead of 503 Posted: 04 Mar 2022 05:55 AM PST I have a site served by apache+tomcat and a cache served by Varnish 4.1 When apache is down, varnish always returns a 503 error. Thanks in advance |
| Posted: 04 Mar 2022 05:41 AM PST I've created a custom auxiliary class for the purpose of adding attributes to AD Group objects. I'm dynamically linking the auxiliary class to individual Groups. I can successfully add it to the objectClass of Group objects but I can also add it to other object types. I can't seem to find any clear documentation on how to restrict it to only Group objects. I've tried setting systemPossSuperiors/Possible Superior and it doesn't change the behavior. It's not entirely clear that there is a way to restrict it but but other built in classes seem to demonstrate restrictions.
Thanks. |
| Downsize the boot disk in VM Instance Posted: 04 Mar 2022 05:39 AM PST We are having VM instance with SSD disk of 950 GB with mongodb server running on it. We found that the disk can be of 60 GB hence was trying to resize disk. Followed few posts and solutions but failed eventually to SSH. https://stackoverflow.com/questions/50731578/google-cloud-how-to-reduce-disk-size Looking for help. |
| Posted: 04 Mar 2022 05:27 AM PST I use commands like this to set permissions for some custom gorups/users.. now I want to set the permissions without overwriting them for all the other groups/users, what do I need to add to my ACL-Entrys?: |
| Postfix causes issues when its service is enabled using systemctl and doesn't launch on startup Posted: 04 Mar 2022 04:41 AM PST On a Rocky Linux version 8.5 machine (a bug-for-bug compatible Red Hat Enterprise Linux downstream), I have configured Postfix + Dovecot setup. After troubleshooting all configuration errors, I got to the point where both services would at least launch. After restarting the machine, I could see Dovecot launched properly when queried using A quick check using The error reported makes no sense, however. I can Furthermore, if I leave Postfix service disabled in Why does Postfix on RHEL even come registered as a service when it categorically refuses to work as such? And what is then the proper way to ensure Postfix starts at boot? Note: I tried ... do I really have to hack it in using |
| High-availability strategy [closed] Posted: 04 Mar 2022 04:30 AM PST I have 4 servers, all Windows Server 2019. I need to setup them as 2 servers and 2 storages and run a File Server. The end goal is to connect them in a way that if a server and a storage goes down, everything works fine. How can I accomplish this in a Windows environment? |
| Routing WIFI and LAN on Mac OS Posted: 04 Mar 2022 04:25 AM PST An old post couldn´t help me. Things are like this: I have one Network(managed from a router with access to the internet) All Mac´s are in that Network via Ethernet. In this Network is as well a NAS for Backups and some Files. Additional i have Starlink Wifi (So not a network, only access to fast Wifi. That is how the starlink router work) Now that i´m in the Starlink wifi, i cant connect to the NAS with the ethernet. So More or less i only want the Ethernet connection for NAS stuff and Wifi for default browsing etc. I tried a lot of stuff but couldn´t manage it.. Does someone have an idea? Thanks in advance! Albert |
| Terraform Libvirt - How to use local qcow2 file Posted: 04 Mar 2022 03:31 AM PST i try to provision some nodes for a kubernetes cluster based on kvm and debian. I want to use the Debian 11 Genericcloud Image and clound-init to initialize it. So i put the debian baseimge to where Same when i try the solution from this serverfault post. Then my code looks like this: and i get the same error. Does anyone have a clue whats going wrong here? Thanks in advance |
| How to install 32-bit libGL.so.1 on 64-bit Ubuntu 21.10 Posted: 04 Mar 2022 03:04 AM PST I'd like to run 32-bit software on my 64-bit Ubuntu 21.10 and I got an error: It's because the library is 64-bit. So I tried to install 32-bit version of it but it doesn't work. Firstly I've added i386 architecture to my Ubuntu and then I tried to install library: How to solve it? Thanks in advance for advice. |
| How to register a variable in one role and use it in another one in Ansible Posted: 04 Mar 2022 05:55 AM PST I am trying to register a variable in a role and then use it in another one. Here is the different files I'm using : playbook.yml role1/tasks/main.yml role2/tasks/main.yml For the information, the qm agent command give me an IP address and I want to use it in the second role. But obviously, for now it displays me an error when I execute the playbook : To summarize, I want to use var_role1, registered in role1, in role2. Thanks ! |
| Can't configure SMTP encryption - postfix Posted: 04 Mar 2022 05:38 AM PST I have docker-mailserver and Roundcube in containers, beside there is MySQL database for mail data and user passwords. Dovecot inside is configured to verify logging in users passwords with database. Yesterday I've configured IMAP and it is working properly. Also Roundcube is working with no problem. Now I am facing problem configuring secure connection for SMTP. Even if there is setting "require" and similar to "always use STARTTLS" I am not getting possibility to send emails with secure connection. Plain (insecure) connections works ok. My If I uncomment last 4 lines I am getting problems sending emails via Roundcube (SMTP server expects secure connection but on server it is not configured on Roundcube side). And also there is no possibility to secure SMTP communication from my home Thunderbird. TB with insecure connection works ok. I've seen the documentation here: http://www.postfix.org/SASL_README.html but it does not help much. What is the proper configuration needed to make postfix/dovecot work with STARTTLS? EDIT: Configuration: https://pastie.io/hxcfkw.ini What I am getting at connection is: So seems like the server is not offering any security. |
| Posted: 04 Mar 2022 04:50 AM PST I am not a system\network engineer (I am a software developer) so this is not my cup of tea. I have the following problem: I am configuring some Office 365 mailboxes for a client (that at the moment is using another old mail service). Following this official documentation: https://docs.microsoft.com/en-us/microsoft-365/admin/get-help-with-domains/create-dns-records-at-any-dns-hosting-provider?view=o365-worldwide I have to add the TXT record (provided into the Office 365 control panel) in order to proove that I have the ownership of the specified domain. So this is not my territory and I have the following doubt: at the moment they are using another e-mail system (that will be replaced but that must still work for some days, I can't stop it now). So set this TXT record means to add a new TXT record (in order to prove thath I own this domain). In this case I will have 2 TXT record (one for Office 365 and the other one for the old memail system and both should works fine) or it means that I have to replace the old TXT record? (in this case I suppose that the old e-mail system will not recognize my domain anymore and it could be a problem). So my doubt is: in a domain can I have more that a single TXT record? This can have some impact on the old e-mail system that must still work for some days? Thank you |
| RewriteRule won't match if trailing slash present, throws nginx 404 Posted: 04 Mar 2022 04:31 AM PST With this ...I get the following behavior, when I request
Note: there is no folder Am I missing something or is this the hosting provider's fault, like a nginx proxy misconfiguration? On a different apache, this setup works as expected. |
| cmd pipe -> System cannot find specified path Posted: 04 Mar 2022 05:50 AM PST Using I get So I need this working because of how Visual Studio Code connects to ssh servers: which gives exactly the same issue. EDIT: Just tried on an old machine with Windows XP. Works flawlessly. EDIT: System info. It's in Spanish, but should be easy to understand. I'ts a normal Windows 10 installation. No magic tricks. Some more info, it runs fine when done like this: |
| TLS version switching to 1.0 when DNS changes in python3.6.8 application on rhel 7 Posted: 04 Mar 2022 04:36 AM PST I have an application written in OpenSSL version: 1.0.2k Python version: 3.6.8 Also, is this issue related to this older OpenSSL version or Python version? |
| Resize server succeed but not applied Posted: 04 Mar 2022 02:59 AM PST I would like to resize the server via this api. It returns When I tried to |
| Target pool with multiple load balancers? Posted: 04 Mar 2022 04:36 AM PST As it's not possible to use one EDIT My app is a multi-tenant app, that should server thousands of domains, I came up with this solution using AWS ECS considering the limitations of:
So, I am thinking to serve the domain not only through one cluster, but multiple cluster sharing, as in the above diagram, its %50, %50 spreading of traffic on two clusters, in a method called active-active as I read at Shopify blog. |
| systemd[1]: Failed to start Advanced key-value store Posted: 04 Mar 2022 05:05 AM PST A little rodeo with redis. The error issued by redis is pretty unspecific ... When doing When doing So how to resolve? |
| How to avoid automatic patching for SQL Server 2016 via Windows automatic update service? Posted: 04 Mar 2022 03:03 AM PST While updating OS patches, we see that SQL Server is also receiving hotfix patches; we don't want to install SQL Server patches and we don't want to stop OS patches from installing. Microsoft says "By default, Windows Update client is configured to provide updates only for Windows. If you enable the Give me updates for other Microsoft products when I update Windows setting, you also receive updates for other products, including security patches for Microsoft SQL Server and other Microsoft software." I did check this setting on the server and it was off and grayed out. Hence, I believe when SQL Server was installed, the below option was checked and that is causing it to receive updates:
So how can we disable it through some policy or registry key? |
| Am able to ping my domain, but not subdomain (digitalocean) Posted: 04 Mar 2022 04:04 AM PST My main domain (say: example.com) on DigitalOcean is working ok. I've only one droplet in there. Then I created 'a' record under my main domain with another subdomain name (1.example.com). Then, I created another subdomain (2.example.com), in the way as we create a new domain in DO, and made it refer to the same droplet's ip address as my main domain's. Hope I'm able to clear myself. And Problem is that I'm able to ping example.com, but not able to reach 1.example.com or 2.example.com (both created slightly diff ways in DO). Its been more than an hour since then. I've tried reducing ttl from 3600 to 60 or 600. Ping says "no address associated with hostname". My actual subdomain name are 1.bobu.xyz and 2.bobu.xyz If I dig these subdomains in Windows Bash, they show the 'a' records pointing to DO's name servers. But no else record is there. How can I reach them/ping them? What am I missing? |
| iptables rules for NAT with FTP Posted: 04 Mar 2022 03:03 AM PST
|
| Copy VM Snapshot to a new VM Environment Posted: 04 Mar 2022 04:43 AM PST We have 2 separate VMWare environments, one is the main environment which has hundreds of virtual machines across lots of sites. The other is a much smaller one installed on one server, just for archiving old systems. What I would like to do is take a snapshot of the current state of one of our live VMs, and use that to copy across to the other VMWare environment and create a new machine there, using that as the archive of that system. Is this going to be possible/easy? |
| Convert virtual disk image to physical disk? Posted: 04 Mar 2022 06:06 AM PST I'm trying to use QEmu for Windows to convert a virtual disk image to a physical SSD. But I'm not sure about the syntax for the But I get this error: Note that I do not have any partitions on the output drive - it's a bare drive. Also, I only want to do this if I'll see a decent performance gain - so if it doesn't make a difference, then I won't bother. |
| How to access Hadoop remotely? Posted: 04 Mar 2022 04:42 AM PST I have installed Hadoop on open-stack CentOS guest VM. I'm able to open the site: But not able to access the same from a remote machine (My Computer). Here is my network diagram: |
| Asterisk Penalty for dynamic Agents Posted: 04 Mar 2022 04:04 AM PST Is there a way to use penalty with dynamic agents to order agents call distribution for received calls in a queue? We are using linear ring strategy and this only order calls to dynamic agents by their order in the login. |
| Running multiple instances of a Batch file in windows simultaneously? Posted: 04 Mar 2022 06:06 AM PST I have a windows batch file that is invoked by windows scheduler. When I try to have multiple windows scheduler tasks trying to run the batch file simultaneously, the batch file is locked by the first process and the all the other instances fail. Is there is way in Windows to run multiple instances of batch file simultaneously? My script is a simple one all it does is: |
| Automatically binding applications to a network interface based on the account they are started with Posted: 04 Mar 2022 05:05 AM PST Im looking for a way to have applications started from different accounts automatically bind to a specific network interface. For example: applications started on accountA bind to eth0 and applications started from accountB bind to eth1. Is there any way I can accomplish this? I hope this is easier to understand. I would like to do this because im looking to share a dedicated server with someone. It would be beneficial if we could have account specific ip's so we could both run services requiring the same port without the hassle of trying to bind every application. |
| Tell Rsync to Skip Current file During Transfer? Posted: 04 Mar 2022 02:48 AM PST Is there a way to tell rsync to skip its current file while a sync is in progress, maybe by sending it a particular signal? I already know about ignoring based on patterns, but this would be handy to me sometimes. |
| You are subscribed to email updates from Recent Questions - Server Fault. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment