Arch Linux: Recent news updates
kea >= 1:3.0.3-6 update requires manual intervention
The
Users upgrading from an existing
Accounts that need to interact with
source
(author: Robin Candau)
kea >= 1:3.0.3-6 update requires manual intervention
The
kea package has moved all services to run as a dedicated kea user (instead of root) for improved security. This change requires permission updates to the runtime files created by the kea services.Users upgrading from an existing
kea installation should therefore run the following commands after the upgrade:chown kea: /var/lib/kea/* /var/log/kea/* /run/lock/kea/logger_lockfilesystemctl try-restart kea-ctrl-agent.service kea-dhcp{4,6,-ddns}.serviceAccounts that need to interact with
kea services files (e.g. lease files under /var/lib/kea, log files under /var/log/kea or configuration files under /etc/kea) should be added to the kea group.source
(author: Robin Candau)
Arch Linux: Recent news updates
iptables now defaults to the nft backend
The old iptables-nft package name is replaced by iptables, and the legacy backend is available as iptables-legacy.
When switching packages (among iptables-nft, iptables, iptables-legacy), check for .pacsave files in /etc/iptables/ and restore your rules if needed:
● /etc/iptables/iptables.rules.pacsave
● /etc/iptables/ip6tables.rules.pacsave
Most setups should work unchanged, but users relying on uncommon xtables extensions or legacy-only behavior should test carefully and use iptables-legacy if required.
source
(author: Felix Yan)
iptables now defaults to the nft backend
The old iptables-nft package name is replaced by iptables, and the legacy backend is available as iptables-legacy.
When switching packages (among iptables-nft, iptables, iptables-legacy), check for .pacsave files in /etc/iptables/ and restore your rules if needed:
● /etc/iptables/iptables.rules.pacsave
● /etc/iptables/ip6tables.rules.pacsave
Most setups should work unchanged, but users relying on uncommon xtables extensions or legacy-only behavior should test carefully and use iptables-legacy if required.
source
(author: Felix Yan)
Daniel Lemire's blog
The fastest way to match characters on ARM processors?
source
The fastest way to match characters on ARM processors?
source
Daniel Lemire's blog
The fastest way to match characters on ARM processors?
Consider the following problem. Given a string, you must match all of the ASCII white-space characters (\t, \n, \r, and the space) and some characters important in JSON (:, ,, [, ], {, }). JSON is a text-based data format used for web services. A toy JSON…
Daniel Lemire's blog
Can your AI rewrite your code in assembly?
source
Can your AI rewrite your code in assembly?
source
Daniel Lemire's blog
Can your AI rewrite your code in assembly?
Suppose you have several strings and you want to count the number of instances of the character ! in your strings. In C++, you might solve the problem as follows if you are an old-school programmer. size_t c = 0; for (const auto &str : strings) { c += st…
Chips and Cheese
Investigating Split Locks on x86-64
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
Investigating Split Locks on x86-64
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
Matt Keeter
A tail-call interpreter in nightly Rust
source
(author: Matt Keeter (matt.j.keeter@gmail.com))
A tail-call interpreter in nightly Rust
source
(author: Matt Keeter (matt.j.keeter@gmail.com))
Harry Chen’s Blog
在 RTX 5090 (SM120) 上补全 NVFP4 量化相关 kernel
source
(author: Shengqi Chen (i@harrychen.xyz))
在 RTX 5090 (SM120) 上补全 NVFP4 量化相关 kernel
source
(author: Shengqi Chen (i@harrychen.xyz))
隔壁群看到一篇很有意思的文章，介绍了教育网一种非常有趣的代理实现方式。
为了能够在国内的网络环境下降低学术内容访问的门槛，他们利用自己网络的性质，在访问时保持用户源 IP 的情况下对内容进行代理和审计。
这简直是地区级运营商层面的“fakeip”实现，我也想办全国性的大网然后玩这些好玩的操作。
https://rentry.co/r9frf3i4
为了能够在国内的网络环境下降低学术内容访问的门槛，他们利用自己网络的性质，在访问时保持用户源 IP 的情况下对内容进行代理和审计。
这简直是地区级运营商层面的“fakeip”实现，我也想办全国性的大网然后玩这些好玩的操作。
https://rentry.co/r9frf3i4
Claude Mythos Preview System Card (2).pdf
https://www-cdn.anthropic.com/8b8380204f74670be75e81c820ca8dda846ab289.pdf
https://www-cdn.anthropic.com/8b8380204f74670be75e81c820ca8dda846ab289.pdf
Daniel Lemire's blog
A Fast Immutable Map in Go
source
A Fast Immutable Map in Go
source
Daniel Lemire's blog
A Fast Immutable Map in Go
Consider the following problem. You have a large set of strings, maybe millions. You need to map these strings to 8-byte integers (uint64). These integers are given to you. If you are working in Go, the standard solution is to create a map. The construction…
Chips and Cheese
Embracing AI with Claude's C Compiler
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
Embracing AI with Claude's C Compiler
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
