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Ivan Shvedunov ivan4th

  • Spacemesh
  • Yerevan, Armenia
  • 19:18 (UTC +04:00)
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@ivan4th
ivan4th / tmux.conf
Created September 28, 2019 06:24
tmux on mac
# http://www.hamvocke.com/blog/a-guide-to-customizing-your-tmux-conf/
unbind C-b
set -g prefix C-a
bind C-a send-prefix
set -g mouse on
# https://gist.github.com/miguelmota/71ab27e1ec2c80759d8ea975b8ec855b
# bind-key -T copy-mode-vi MouseDragEnd1Pane send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
# bind-key -T copy-mode MouseDragEnd1Pane send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
bind-key -T copy-mode-vi MouseDragEnd1Pane send -X copy-pipe-and-cancel "pbcopy"
@ivan4th
ivan4th / config.boot
Last active April 16, 2023 05:32
Anti-censorship EdgeRouter X setup
firewall {
all-ping enable
broadcast-ping disable
group {
address-group CV {
address 195.82.146.0/24
}
}
ipv6-receive-redirects disable
ipv6-src-route disable
@ivan4th
ivan4th / output.txt
Created February 28, 2019 23:15
whois 92.53.91.113
% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object
refer: whois.ripe.net
inetnum: 92.0.0.0 - 92.255.255.255
organisation: RIPE NCC
status: ALLOCATED
@ivan4th
ivan4th / description.md
Last active August 13, 2018 23:02
password decryptor for kustomize

keys.gpg is an encrypted file with key-value pairs like this:

# TEST_KEY is "foobar" (base64-encoded)
TEST_KEY="Zm9vYmFy"

values are base64-encoded

Usage in kustomization.yaml:

secretGenerator:
$ sed 's@\bSERVICE_apache\b@/opt/apache/bin@g'
SERVICE_apache QQQ
/opt/apache/bin QQQ
QQQ SERVICE_apache ZZZ
QQQ /opt/apache/bin ZZZ
SERVICE_apachehuyache
SERVICE_apachehuyache
FOOSERVICE_apache
FOOSERVICE_apache
@ivan4th
ivan4th / gist:9d8ecc7408a5a68e3074ca48f7b62598
Created August 5, 2018 11:10
digital ocean dns + letsencrypt + docker
$ cat letsencrypt/do.ini
dns_digitalocean_token = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
$ docker run -it --rm --name certbot \
-v "$PWD/letsencrypt:/etc/letsencrypt" \
-v "$PWD/letsencrypt-data:/var/lib/letsencrypt" \
-v "$PWD/letsencrypt-out:/keys" \
certbot/dns-digitalocean \
certonly \
--server https://acme-staging-v02.api.letsencrypt.org/directory \
--dns-digitalocean \
@ivan4th
ivan4th / print-sched.txt
Created February 3, 2017 19:33
kube-proxy-print-sched
runtime.usleep () at /usr/local/go/src/runtime/sys_linux_amd64.s:95
95 /usr/local/go/src/runtime/sys_linux_amd64.s: No such file or directory.
(gdb) print-sched
G state:
1 waiting (chan receive)
started at runtime.main
created by runtime.rt0_go
2 waiting (force gc (idle))
started at runtime.forcegchelper
created by runtime.init.3
@ivan4th
ivan4th / kube-proxy-gp
Created February 3, 2017 18:52
gp details for kube-proxy
(dlv) thread 14
Switched from 34689 to 14
(dlv) print gp
*runtime.g {
stack: runtime.stack {lo: 842350829568, hi: 842350831584},
stackguard0: 18446744073709550302,
stackguard1: 18446744073709551615,
_panic: *runtime._panic nil,
_defer: *runtime._defer nil,
m: *runtime.m {
@ivan4th
ivan4th / kube-proxy-sigquit.txt
Created February 3, 2017 18:28
kube-proxy log - killed with SIGQUIT
I0130 17:16:29.223801 1 server.go:215] Using iptables Proxier.
W0130 17:16:30.386099 1 server.go:468] Failed to retrieve node info: nodes "node158" not found
W0130 17:16:30.386240 1 proxier.go:249] invalid nodeIP, initialize kube-proxy with 127.0.0.1 as nodeIP
I0130 17:16:30.386275 1 server.go:227] Tearing down userspace rules.
I0130 17:16:30.386376 1 healthcheck.go:119] Initializing kube-proxy health checker
I0130 17:16:30.488856 1 conntrack.go:81] Set sysctl 'net/netfilter/nf_conntrack_max' to 1572864
I0130 17:16:30.489253 1 conntrack.go:66] Setting conntrack hashsize to 393216
I0130 17:16:30.492146 1 conntrack.go:81] Set sysctl 'net/netfilter/nf_conntrack_tcp_timeout_established' to 86400
I0130 17:16:30.492177 1 conntrack.go:81] Set sysctl 'net/netfilter/nf_conntrack_tcp_timeout_close_wait' to 3600
I0130 17:16:31.580885 1 proxier.go:472] Adding new service "kube-system/kubedns:dns" at 10.224.0.3:53/UDP
@ivan4th
ivan4th / kube-proxy-threads.txt
Created February 3, 2017 18:27
kube-proxy hangs - threads
(dlv) threads
Thread 1 at 0x464d07 .usr/local/go/src/runtime/sys_linux_amd64.s:95 runtime.usleep
Thread 7 at 0x465123 .usr/local/go/src/runtime/sys_linux_amd64.s:388 runtime.futex
Thread 8 at 0x464d07 .usr/local/go/src/runtime/sys_linux_amd64.s:95 runtime.usleep
Thread 9 at 0x465123 .usr/local/go/src/runtime/sys_linux_amd64.s:388 runtime.futex
Thread 10 at 0x464d07 .usr/local/go/src/runtime/sys_linux_amd64.s:95 runtime.usleep
Thread 11 at 0x465123 .usr/local/go/src/runtime/sys_linux_amd64.s:388 runtime.futex
Thread 12 at 0x464d07 .usr/local/go/src/runtime/sys_linux_amd64.s:95 runtime.usleep
Thread 13 at 0x464d07 .usr/local/go/src/runtime/sys_linux_amd64.s:95 runtime.usleep
Thread 14 at 0x465237 .usr/local/go/src/runtime/sys_linux_amd64.s:479 runtime.osyield