Yes. Sorry, I still don’t speak English well, so I use Google Translate.
nitrolife
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Joined 3 years ago
Cake day: June 28th, 2023
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Well, I can only write from my own experience. I’ve worked for several major campaigns in my life. In banks, in telecom operators. And it’s almost always been like this. And where there was none, the campaign collapsed. Not in a moment, of course, because campaigns, like people, do not die instantly, but age and degrade. But as a result, it was.
The job of people around the CEO is primarily to make decisions. All this huge chain of managers is needed only to aggregate information so that the CEO can make an informed decision. This is how many large companies operate. I would even say that there is a direct correlation between the size of the campaign and the number of monitors at the bottom.
The flip side of sitting behind a huge monitor is that you won’t stay outside with a huge number of your employees if you make the wrong decision. It’s just a different job.
ISC DHCP switched to KEA DHCP, They don’t have package in Debian repo, but you can add repo and install: https://cloudsmith.io/~isc/repos/kea-3-0/packages/
ISC really deprecated… =( You can install dnsmasq of course, but he is much more slow. But nice for small networks.
Firewalld is much worse for small sustems. Who is really need mark ports? But in difficult cases you need write iptables rich rules anyway. So, as result I love old school with clean iptables without any upperlevel daemons.
Enable packet forwarding via interfaces:
# cat /etc/sysctl.d/01-forward.conf net.ipv4.ip_forward = 1 net.ipv6.conf.all.forwarding = 1 net.ipv6.conf.default.forwarding = 1Then install isc-dhcp-server and configure ipv4 and ipv6 dhcp server. (only on local ports or you internet prowider will be angry)
short example:
# cat /etc/dhcpd.conf ddns-update-style interim; ddns-updates on; ddns-domainname "my.local"; ddns-rev-domainname "in-addr.arpa"; allow client-updates; update-conflict-detection true; update-optimization true; authoritative; default-lease-time 86400; preferred-lifetime 80000; max-lease-time 86400; allow leasequery; option domain-name "my.local"; option domain-name-servers 192.168.1.1; lease-file-name "/var/lib/dhcp/dhcpd.leases";# cat /etc/dhcpd6.conf ddns-update-style interim; ddns-updates on; ddns-domainname "my.local"; ddns-rev-domainname "ip6.arpa"; allow client-updates; update-conflict-detection true; update-optimization true; authoritative; default-lease-time 86400; preferred-lifetime 80000; max-lease-time 86400; allow leasequery; option domain-name "my.local"; option dhcp6.name-servers fd00:1::1; option dhcp6.domain-search "my.local"; option dhcp6.preference 255; dhcpv6-lease-file-name "/var/lib/dhcp/dhcpd6.leases";don’t forget start dhcpd@lan and dhcpd6@lan
Then install radvd and configure RA ipv6 broadcasting. (only on local ports or you internet prowider will be angry)
# cat /etc/radvd.conf interface br0 { AdvSendAdvert on; MinRtrAdvInterval 3; MaxRtrAdvInterval 10; AdvDefaultPreference low; AdvHomeAgentFlag off; prefix fd00:1::/64 { AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; RDNSS fd00:1::1 { AdvRDNSSLifetime 30; }; DNSSL my.local { AdvDNSSLLifetime 30; }; };Then install iptables-persistent and configure ipv4 and ipv6 rules in /etc/iptables/ . Change lan and internet to you real interfaces.
# cat /etc/iptables/rules.v4 # Generated by iptables-save v1.6.1 on Mon Dec 30 18:53:43 2019 *nat :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -o internet -j MASQUERADE COMMIT # Completed on Mon Dec 30 18:53:43 2019 *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] #UNBRICK IF YOU WANT ACCESS FROM INTERNET -A INPUT -s x.x.x.x -j ACCEPT -A INPUT -s y.y.y.y -j ACCEPT #BASE -A INPUT -i lo -j ACCEPT -A INPUT -i lan -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -i lan -j ACCEPT -A FORWARD -p icmp -j ACCEPT -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT COMMIT# cat /etc/iptables/rules.v6 # Generated by ip6tables-save v1.6.0 on Thu Sep 8 13:29:11 2016 *nat :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -o internet -j MASQUERADE COMMIT *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] #BASE INPUT -A INPUT -i lo -j ACCEPT -A INPUT -i lan -j ACCEPT -A INPUT -p ipv6-icmp -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -i lan -j ACCEPT -A FORWARD -p ipv6-icmp -j ACCEPT -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT COMMITThen install dns relay. I user bind, but that some overkill. But anyway:
install named / bind9
# cat /etc/named.conf ... acl "lan" { 192.168.1.0/24; 127.0.0.1; fd00:1::/64; ::1/128; }; tls google-DoT { ca-file "/var/named/google.crt"; //SET google cert path here remote-hostname "dns.google"; }; tls local-cert { //if you want local SSL requests cert-file "/etc/letsencrypt/live/local/cert.pem"; key-file "/etc/letsencrypt/live/local/privkey.pem"; }; options { directory "/var/named"; pid-file "/run/named/named.pid"; forwarders port 853 tls google-DoT { 8.8.8.8; 8.8.4.4; }; // Uncomment these to enable IPv6 connections support // IPv4 will still work: //listen-on-v6 { any; }; // Add this for no IPv4: //listen-on { any; }; listen-on-v6 { fd00:1::1; ::1; }; listen-on { 192.168.1.1; 127.0.0.1; }; listen-on-v6 tls local-cert { fd00:1::1; ::1; }; //if you want local SSL requests listen-on tls local-cert { 192.168.1.1; 127.0.0.1; }; //if you want local SSL requests allow-recursion { lan; }; allow-recursion-on { 192.168.1.1; fd00:1::1; 127.0.0.1; ::1; }; allow-transfer { none; }; allow-update { none; }; allow-query { lan; }; allow-query-cache { lan; }; allow-query-cache-on { 192.168.1.1; fd00:1::1; 127.0.0.1; ::1; }; version "DNS Server 1"; hostname "interesting server"; server-id "realy interesting server"; dnssec-validation auto; empty-zones-enable no; minimal-responses yes; http-port 8888; listen-on http local tls none { any; }; listen-on-v6 http local tls none { any; }; auth-nxdomain no; # conform to RFC1035 }; ...All done.
21·9 months agoarchlinux + podman / libvirtd + nomad (libvirt and docker plugins) + ansible / terraform + vault / consul sometimes
UPD:
archlinux - base os. You never need change major version and that is great. I update core systems every weekend.
podman / libvirtd - 2 types of core abstractions. podman - docker containers management, libvirtd - VM management.
nomad - Hashicorp orcestrator. You can run exec, java application, container or virtual machine on one way with that. Can integrate with podman and libvirtd.
ansible - VM configuration playbooks + core system updates
terraform - engine for deploy nomad jobs (docker containers. VMs. execs or something else)
Vault - K/V storage. I save here secrets for containers and VMs
consul - service networking solution if you need realy hard network layer
As a result, I’m not really sure if it’s a simple level or a complex one, but it’s very flexible and convenient for me.
UPD2: As a result, I described the applications level, but in fact it is 1 very thick server on AMD Epic with archlinux. XD By the way, the lemmy node from which I write is just on it. =) And yes, it’s still selfhosted.
The only way to connect the SIM number directly is to hack the VoWiFi protocol, but this is not trivial and you still need to install the SIM in the server.
Option 2 - Buy a home SIP2GSM gateway. But it’s quite expensive (by the standards of my region anyway). SMS work with SMPP, calls work too. For goIP I wrote telegram SMS gateway if you interesting: https://github.com/lifespirit/telegram-smpp-bot
Or use SIP providers from your region/operators that support SIP connectivity and then enable full calls redirection. For calls ok.
UPD: or just use VoWiFi from mobile phone. But you need sim slot in phone.
Anyway in all another way you need install asterisk/freeswitch and write config fot it. And linphone client.
I think you Just need nginx with one module: https://nginx.org/en/docs/http/ngx_http_dav_module.html That is filestorage only. WebDAV client exists for all platforms.
UPD: if you need web client you can use something like https://github.com/mgoltzsche/file-service/
In general, this is of course 100% based on speculation, but I assume that you can connect to a VPN but you cannot access any resource inside the local network. Just because this is the most basic mistake that beginners usually make. And it’s related to the fact that your pi is not your default gateway. To solve this, you need to enable SNAT on the local Pi interface. There are many guides on the Internet on how to do this.
P.S. Unfortunately, I have a poor telepathy skill, so it would be good to get a little more background. At least an accurate description of the problem. =)
Look:
- you can buy any VPS server or use free VM in Amazon cloud
- then connect your home PC to this VPS with VPN tunnel After that you have public IP address (on VPS) linked with you home server.
- configure VPS for pass through incoming ports to you home server After that you can host anything for anyone in v4 or v6 internet.
I think you search that: https://developer.hashicorp.com/vault/tutorials/pki/pki-engine
I used lvm with SSD cache few years, but time to time I have problems with loads after reboot. If forgot about reboots all work great with LVM raid + LVM cache. Cache can be configured without raid. And you can add or remove cache in any time. Docs: https://man.archlinux.org/man/lvmcache.7
Insert logs in pastebin.com and attach links and you can open ticket on git.
You can use postfix + dovecot + roundcube + spamassassin + opendkim + pigeonhole. Maximum stability. Roundcube have aliases plugin.
You can start from here: https://wiki.archlinux.org/title/Virtual_user_mail_system_with_Postfix,_Dovecot_and_Roundcube
Topic starter don’t use docker containers. He use lxc containers. LXC is virtual machines on host kernel. Case is that: He have 3 virtual machines with shared disk. In 3 VMs have 3 different applications. Applications work under different users and can’t rewrite data on shared disk. That is user permissions problem.
the idea is that: all your applications work under the same user. or at least under the same group. because this is exactly how the differentiation of rights is applied.
A good plan is to create some kind of user in all three containers and run qbittorrent, samba and the third application under it.
A bad plan is to run everything under a random user with 777 rights, but this is a really bad plan.
Create a user in all three containers and work under it. That is not hard. Run qbittorent with that user. Config will be there: /home/user/.config . Then set that user for samba. I don’t know third app , but I think you can find how change user in manual.
You can use Revolt. Literaly Discord clone. https://github.com/revoltchat
You need to create an MX record in the DNS zone of your domain. Something like:
@ IN MX 10 my.zome. @ IN MX 20 server1.my.zome.You can create 1 MX record or more. 10 and 20 server priority for input mails.
Then you need to create an spf record. There are several options here. For example
allows you to send emails from A domain records, then from MX domain records and prohibits from all other hosts.
Theoretically, you can only create an SPF record with A but without MX and dont create MX DNS records. Although I have not tried this configuration.
This is the minimum set after which you will get into spam, but at least the letters will reach.
You also need to make a PTR record to avoid spam folder, but this is not possible on a dynamic IP.
It all depends on the greed of the campaign. I worked in a campaign where it was considered normal to keep a degraded raid without repair. Of course, data loss is a normal story in such companies. The raid guarantees data security only when one disk is being pulled (except for some raids), so it also needs to be monitored and replaced. On the other hand, with proper operation, you probably won’t lose any data.
P.S. RAID0 - raid that can’t be restored when degraded any disk in RAID. This is exactly worse choice for data save. STRIPE also writes blocks one at a time to the first disk and to the second, so that you would definitely lose exactly 50% of data blocks. Best choice raid10 for performance and raid5 if you need save money.